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Auth with social network:Download presentation We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you! Presentation is loading. Please wait. Introduction to Database Management SystemPublished by Nora Hensley Modified over 5 years ago Similar presentations Presentation on theme: "Introduction to Database Management System"— Presentation transcript:Introduction to Databases 1 Minggu 1, Pertemuan 1 Introduction to Database Matakuliah: T0206-Sistem Basisdata Tahun: 2005 Versi: 1.0/0.0. Data Management I DBMS Relational Systems. Overview u Introduction u DBMS –components –types u Relational Model –characteristics –implementation u Physical. ©Silberschatz, Korth and Sudarshan1.1Database System Concepts Chapter 1: Introduction Purpose of Database Systems View of Data Data Models Data Definition. Introduction to Databases Transparencies Chapter 1 INTRODUCTION TO DATABASE. Dr. Kalpakis CMSC 461, Database Management Systems Introduction. Chapter 1 Introduction to Databases Database Design and Introduction to SQL Introduction to DBMS Purpose of Database Systems View of Data Introduction to Database DBMS By Narinder Singh Computer Sc. Deptt. Topics What is DBMS What is DBMS File System Approach: its limitations File System Approach: its limitations. CS370 Spring 2007 CS 370 Database Systems Lecture 2 Overview of Database Systems. Sistem Basis Data (DATABASE) Siauw Yohanes Darmawan Module Title? DBMS Introduction to Database Management System. Chapter 1 Introduction to Databases Pearson Education © Chapter 1 : Introduction §Purpose of Database Systems §View of Data §Data Models §Data Definition Language §Data Manipulation Language §Transaction Management. About project© 2024 SlidePlayer.com Inc. All rights reserved. The Complete Guide to Free and Open Source Database Software- riazul-islam
- August 31, 2024
- Table of Contents
Free and open source database software provides a compelling option for storing and managing data without incurring expensive licensing fees. From hobbyists working on personal projects to startups launching new products, open source databases empower you with enterprise-grade capabilities that can scale from small datasets to massively distributed cloud infrastructure. This definitive guide explores the world of free database software and equips you with expert knowledge to select the right platform for your needs. Let‘s dive in! Overview of Core Database ArchitecturesWhen evaluating database options, you‘ll encounter two primary architectural models: SQL Databases: These traditional relational databases organize data into tables with predefined schemas. They provide simplicity and robust tools for structured data but can require more planning as needs evolve. NoSQL Databases: Also known as non-relational databases, these more flexible platforms store unstructured or semi-structured data using models like key-value pairs, graphs, and documents. NoSQL scales well but may lack some features of mature SQL systems. Both open source SQL and NoSQL come in a variety of flavors with unique capabilities. Your application‘s specific requirements around transactions, reporting, scalability, and data types will determine the best approach. Key Benefits of Using Open Source DatabasesChoosing open source over proprietary databases offers several clear advantages: - Significant cost savings – Avoid vendor lock-in and expensive commercial licensing fees.
- Flexibility – Modify and extend databases to suit your needs.
- Access to source code – Enhance security and troubleshoot issues.
- Control – Take charge of upgrades rather than being forced into them.
- Community support – Leverage knowledge and contributions from a global community.
Of course, open source lacks official support services, which may be unacceptable for mission-critical workloads. However, many vendors offer support packages at additional cost on an as-needed basis. Evaluating SQL Database OptionsSQL databases remain a versatile, battle-tested choice for many applications because of their maturity and rich tooling. Let‘s explore leading open source relational database options… The world‘s most popular open source database, MySQL offers proven performance, reliability, and ease of use. Its relational model provides effective tools for both operational applications and analytics use cases. MySQL scales well through sharding techniques that horizontally partition data across servers. - High traffic web apps
- Ecommerce platforms
- Datastore for programming languages
- Battle-tested reliability
- Feature-rich ecosystem of GUI tools
- Widely supported across industry
- Lacks full compliance with SQL standards
- Sharding adds complexity
- Risk of Oracle changing license terms
Over 50% of all websites leverage MySQL. Its accelerated development cycles also allow rapid innovation for emerging needs. However, PostgreSQL has emerged as a leading open source alternative – one that prides itself on standards compliance and extensibility. Let‘s compare the two… MySQL vs PostgreSQL Comparison Feature | MySQL | PostgreSQL | Transactions | X | X | JSON Support | X | X | Geographic Data | Basic | Advanced | Replication | Asynchronous | Synchronous | Stored Procedures | X | X | Based on db-engines.com rankings, PostgreSQL and MySQL have very similar adoption globally, with PostgreSQL growing faster annually. A powerful open source relational database, PostgreSQL prides itself on standards compliance, extensibility, security, and modern feature sets including JSON support, multi-version concurrency control, and streaming replication. An enterprise-grade solution trusted by Apple, Reddit, Instagram and more, PostgreSQL rivals top commercial databases. - Business analytics
- Scientific data analysis
- Custom applications
- Highly extensible and customizable
- Great performance via advanced indexing
- Committed community of global developers
- Initial setup/administration can be complex
- Risk of compatibility issues across major updates
- Not as turnkey as MySQL
Given its enterprise capabilities and passionate community, PostgreSQL offers a compelling route as needs grow in complexity. Companies rarely outgrow its robust platform. If seeking a minimalist, embeddable database, SQLite is another compelling open source option. With origins tracing back to 2000, SQLite provides a remarkably compact yet full-featured SQL engine. Unlike client-server database models, SQLite does not run as a separate process. It instead operates as an embedded component directly integrated within end-user applications. The entire database exists as a single cross-platform disk file. - Mobile apps
- Embedded devices
- Internal application data storage
- Zero configuration – no complex installation
- Cross-platform ACID-compliant transactions
- Small disk and memory footprint
- Lacks some advanced SQL features
- Not ideal for enterprise applications
- Risk of data corruption if not shut down properly
For mobile apps and devices, SQLite helps developers avoid obstacles with minimal footprint and solid performance. But for more complex reporting needs, other SQL options are recommended. Cloud-Hosted SQL Database OptionsIncreasingly, databases are deployed to the cloud to reap benefits like elastic scalability, high availability configurations, and reduced hardware management. Top cloud data platforms include: Azure SQL Database Fully managed PaaS by Microsoft built on latest stable SQL Server database engine. Available in single, pooled, and hyperscale resource models. Amazon Relational Database Service (RDS) RDS simplifies deploying scaled MySQL, PostgreSQL, Oracle, SQL Server, and MariaDB databases in AWS. RDS handles infrastructure provisioning, software patching, backups, and failover. Both options provide turnkey availability, security protections, and flexibility – at an added cost over self-managed open source deployments. Benchmark Comparison of Top SQL Solutions Figure: SQL Platform Benchmark via selectstar.io, higher is better As shown above, PostgreSQL and MySQL offer leading price/performance – but consider your own use case patterns. Now let‘s shift gears to… Review of NoSQL Database OptionsSometimes relational models are overkill. For modern apps dealing with semi-structured data, NoSQL databases provide welcomed flexibility. I‘ll overview top options… A wildly popular document store NoSQL database, MongoDB provides dynamic schema design that allows storing data in flexible JSON-like documents rather than rows/columns. Developed by MongoDB Inc., the platform delivers extensive tooling, commercial support options, and a robust ecosystem. - Content management
- Real-time analytics
- IoT data storage
- Intuitive data model based on BSON documents
- Rich querying and indexing capabilities
- Easy horizontal scaling w/ built-in replication
- No multi-document ACID transactions
- Administration can be challenging
- Requires capacity planning
For many modern apps, MongoDB strikes a great balance between scalability and ease of use – minus some data integrity guarantees. Over 100,000 organizations use MongoDB in production, including Adobe, Forbes, and eBay. Apache CassandraDesigned for scalability across commodity servers with no single point of failure, Cassandra offers top performance for write-intensive applications. Its distributed architecture provides enterprise-grade durability and fault tolerance. However, complex data models can become cumbersome. - High volume IoT messaging
- Time series data
- Product catalog
- Proven extreme scalability
- Tunable consistency levels
- Multi-data center support
- No native aggregation features
- Steep learning curve
- Stagnant community innovation
If your application demands unprecedented scalability, Cassandra warrants a deep look – despite its steeper learning curve. Leading companies depending on Cassandra include Netflix, Apple, Instagram, Spotify, and DirecTV. An open source in-memory data store, Redis excels at ultra-fast operations involving static data access and mutable data structures like strings, lists, maps, sets, sorted sets and more. By persisting data to disk, it combines high performance with durability. - Caching layer
- Message brokering
- Gaming leaderboards
- Exceptional benchmark performance
- Rich set of data structures
- High availability configurations
- Advanced administration required
- Risk of losing data if no persistence
- No built-in clustering
If your use case fits, Redis offers blazing speed and unique capabilities. However, its niche as a non-durable datastore mandates redundancy planning for production systems. NoSQL Database Capabilities Overview Figure: How leading NoSQL databases compare by features As shown above, multiple NoSQL platforms merit consideration based on the specific types of unstructured data your application relies on. Next let‘s switch gears to cover… Choosing the Right Open Source DatabaseWith so many database options to evaluate, focus first on your primary requirements around: - Data Models – Do object vs. table structure matter? Graph?
- Functionality – Which access patterns are essential?
- Scale – Read/write throughput needed today and in future?
- Performance – Read/write latency thresholds?
- Availability – Clustering? Failover speed? Durability levels?
- Ecosystem – Tooling and support ecosystem maturity?
Seeking community advice can be invaluable during your selection process. Documentation quality also varies greatly across platforms. Invest time upfront determining proof of concept needs and avoid over-engineering prematurely. You can always migrate to more robust infrastructure later as adoption evolves. When to Consider a Polyglot Persistence Architecture In some cases, a hybrid relational and NoSQL architecture makes sense: - Use SQL for critical transactional data requiring ACID compliance
- Embed a NoSQL database like MongoDB to store session state or less critical data
- Or ingest data into a data lake built on HDFS, then analyze via Spark SQL
Choose the right tool for each specific data storage and processing challenge. Anti-Patterns to Avoid Conversely, common missteps to sidestep when getting started: - Premature optimization without real-world bottlenecks
- Overusing NoSQL “just because”
- Building lifecycle logic into the database layer
- Locking into proprietary software without exploring open source options
Set yourself up for success by aligning business goals with practical data realities. Migrating to Open Source DatabasesTransitioning legacy systems to open source databases reaps tremendous rewards but requires planning. Here is an overview of best practices… Extract, Transform & Load Data Leading open source ETL tools include Pentaho, Talend, and Apache Airflow. Use these to… - Export data from commercial databases
- Cleanse records with custom logic
- Load into desired open source data platforms
Port Applications for Cross-Platform Support To abstract applications from underlying database volatility, leverage ORM frameworks like Hibernate, Django ORM, or SQLAlchemy. These minimize disruption when transitioning between storage engines. Instrument & Validate Performance As you conduct load testing, keep a close eye on key application metrics around: - Requests per second
- Read/write latency
- Memory utilization
- Query response times
Compare metrics against benchmarks for expected platform performance limits. Model Future Scalability Needs Specific capabilities to evaluate when projecting growth: - Vertical scaling potential via beefier single nodes
- Read replicas for spreading read workloads
- Sharding strategies for horizontal partitioning
- NoSQL caching tiers to reduce database load
Right-size migrations to meet current demands while allowing headroom for the future as adoption increases over time. Emerging Open Source Database TrendsWhile traditional databases remain prevalent, surprising new innovations continue disrupting the industry: Containers & Kubernetes Packaging databases like PostgreSQL and MySQL into Linux containers helps isolate apps, deliver portability, and speed up deployment. Popular container orchestration platforms like Kubernetes then auto-scale infrastructure across on-prem or cloud infrastructure. Serverless Architectures Leveraging serverless platforms like AWS Lambda to run code snippets on-demand without managing underlying resources also applies to databases. Purpose-built serverless databases like Aurora Serverless offer event-driven invocation with auto-scaling capacity. Graph databases Graph databases like Neo4j optimize storage and queries based on highly connected data points and relationships most naturally modeled as nodes and edges in graphs. Powering fraud detection and recommendation engines, graph databases continue gaining adoption in specialized use cases involving complex interconnections. Understanding these bleeding edge trends helps future-proof decisions and stay at the forefront of lightning fast innovation. The database landscape offers extreme diversity – along with endless opportunities to capitalize on the unique strengths across both SQL and NoSQL options. I hope this guide has demystified the world of open source database software and illuminated pathways to tremendous value. Avoid vendor lock-in, leverage community innovation, and unlock next-generation data platforms. The time is now to migrate your application or prototype ideas using freely available tools aligned with your technical and business requirements. Master these technologies and seat yourself at the leading edge of the data landscape! Read More TopicsThe complete guide to free database hosting services in 2023, the best free database diagram design tools for 2023, the complete guide to free css editors in 2023: an expert‘s perspective, the ultimate guide to free cpanel hosting in 2023, software reviews. - Alternative to Calendly
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Find support for a specific problem in the support section of our website. Please let us know what you think of our products and services. Visit our dedicated information section to learn more about MDPI. JSmol ViewerRetrospective analysis of municipal geoportal usability in the context of the evolution of online data presentation techniques. 1. Introduction- Q1: Are geoportals built using archaic design techniques not employed any more today less usable than geoportals in service today?
- Q2: Do technology changes, including the increase in mobile device usage, prevent the comfortable browsing of geoportals built using archaic design techniques?
2. Background2.1. usability vs. user experience (ux), 2.2. usability metrics for user experience, 2.3. related work, 3. materials and methods, 3.1. research object, 3.2. methodology, 3.2.1. test scenario, 3.2.2. usability assessment checklist, 3.2.3. aggregate quality score, 3.3. performance audit, 4.1. results for the mobile mode, 4.2. results for the desktop mode, 4.3. aggregate results, 4.4. performance audit results, 5. discussion, 5.1. subject matter and aim of ux tests, 5.2. the high quality of a geoportal consists of usability/ux and performance, 6. conclusions, research limitations and practical implications, institutional review board statement, informed consent statement, data availability statement, acknowledgments, conflicts of interest. Type of Variable | BTB | N | STB | N | BTB | N | STB | N | BTB | N | STB | N | BTB | N | STB | N | BTB | N | STB | N | GOQ |
---|
Variable Code | X1 | X2 | X3 | X4 | X5 | X6 | X7 | X8 | X9 | X10 |
---|
G1 | 43 | 0.000 | 29 | 0.5 | 61 | 1.000 | 17 | 1 | 49 | 0.400 | 28 | 1 | 66 | 1.000 | 26 | 0.167 | 57 | 1.000 | 25 | 1 | 7.07 | G2 | 44 | 0.071 | 33 | 0 | 57 | 0.000 | 21 | 0 | 45 | 0.000 | 32 | 0 | 56 | 0.000 | 27 | 0 | 48 | 0.000 | 31 | 0 | 0.07 | G3 | 57 | 1.000 | 25 | 1 | 60 | 0.750 | 20 | 0.25 | 55 | 1.000 | 29 | 0.75 | 58 | 0.200 | 21 | 1 | 57 | 1.000 | 26 | 0.833 | 7.78 | min. | 43 | 0 | 25 | 0 | 57 | 0 | 17 | 0 | 45 | 0 | 28 | 0 | 56 | 0 | 21 | 0 | 48 | 0 | 25 | 0 | 0.07 | max. | 57 | 1 | 33 | 1 | 61 | 1 | 21 | 1 | 55 | 1 | 32 | 1 | 66 | 1 | 27 | 1 | 57 | 1 | 31 | 1 | 7.78 | Type of Variable | BTB | N | STB | N | BTB | N | STB | N | BTB | N | STB | N | BTB | N | STB | N | BTB | N | STB | N | GOQ |
---|
Variable Code | X1 | X2 | X3 | X4 | X5 | X6 | X7 | X8 | X9 | X10 |
---|
G1 | 42 | 0.000 | 27 | 0.333 | 63 | 1.000 | 16 | 1 | 48 | 0.000 | 28 | 0 | 61 | 1.000 | 34 | 0 | 58 | 0.200 | 23 | 1 | 4.53 | G2 | 48 | 0.375 | 29 | 0 | 59 | 0.000 | 20 | 0 | 52 | 0.364 | 26 | 0.5 | 56 | 0.000 | 26 | 0.667 | 57 | 0.000 | 27 | 0 | 1.91 | G3 | 58 | 1.000 | 23 | 1 | 62 | 0.750 | 18 | 0.5 | 59 | 1.000 | 24 | 1 | 58 | 0.400 | 22 | 1 | 62 | 1.000 | 26 | 0.25 | 7.90 | min. | 42 | 0 | 23 | 0 | 59 | 0 | 16 | 0 | 48 | 0 | 24 | 0 | 56 | 0 | 22 | 0 | 57 | 0 | 23 | 0 | 1.91 | max. | 58 | 1 | 29 | 1 | 63 | 1 | 20 | 1 | 59 | 1 | 28 | 1 | 61 | 1 | 34 | 1 | 62 | 1 | 27 | 1 | 7.90 | - Olszewski, R.; Pałka, P.; Wendland, A.; Majdzińska, K. Application of Cooperative Game Theory in a Spatial Context: An Example of the Application of the Community-Led Local Development Instrument for the Decision Support System of Biogas Plants Construction. Land Use Policy 2021 , 108 , 105485. [ Google Scholar ] [ CrossRef ]
- Resch, B.; Zimmer, B. User Experience Design in Professional Map-Based Geo-Portals. ISPRS Int. J. Geo-Inf. 2013 , 2 , 1015–1037. [ Google Scholar ] [ CrossRef ]
- Jiang, H.; Van Genderen, J.; Mazzetti, P.; Koo, H.; Chen, M. Current Status and Future Directions of Geoportals. Int. J. Digit. Earth 2020 , 13 , 1093–1114. [ Google Scholar ] [ CrossRef ]
- Tait, M. Implementing Geoportals: Applications of Distributed GIS. Comput. Environ. Urban Syst. 2005 , 29 , 33–47. [ Google Scholar ] [ CrossRef ]
- Maguire, D.; Longley, P. The Emergence of Geoportals and Their Role in Spatial Data Infrastructures. Comput. Environ. Urban Syst. 2005 , 29 , 3–14. [ Google Scholar ] [ CrossRef ]
- Granell, C.; Miralles, I.; Rodríguez-Pupo, L.; González-Pérez, A.; Casteleyn, S.; Busetto, L.; Pepe, M.; Boschetti, M.; Huerta, J. Conceptual Architecture and Service-Oriented Implementation of a Regional Geoportal for Rice Monitoring. ISPRS Int. J. Geo-Inf. 2017 , 6 , 191. [ Google Scholar ] [ CrossRef ]
- Neis, P.; Zielstra, D. Recent Developments and Future Trends in Volunteered Geographic Information Research: The Case of OpenStreetMap. Future Internet 2014 , 6 , 76–106. [ Google Scholar ] [ CrossRef ]
- Helbich, M.; Amelunxen, C.; Neis, P.; Zipf, A. Comparative Spatial Analysis of Positional Accuracy of OpenStreetMap and Proprietary Geodata. In Proceedings of the GI_Forum 2012: Geovisualization, Society and Learning, Salzburg, Germany, 4–6 July 2012. [ Google Scholar ]
- Zunino, A.; Velázquez, G.; Celemín, J.; Mateos, C.; Hirsch, M.; Rodriguez, J. Evaluating the Performance of Three Popular Web Mapping Libraries: A Case Study Using Argentina’s Life Quality Index. ISPRS Int. J. Geo-Inf. 2020 , 9 , 563. [ Google Scholar ] [ CrossRef ]
- Horbiński, T.; Cybulski, P. Similarities of global web mapping services functionality in the context of responsive web design. Geod. Cartogr. 2018 , 67 , 159–177. [ Google Scholar ] [ CrossRef ]
- McMahon, D.D.; Smith, C.C.; Cihak, D.F.; Wright, R.; Gibbons, M.M. Effects of Digital Navigation Aids on Adults with Intellectual Disabilities: Comparison of Paper Map, Google Maps, and Augmented Reality. J. Spec. Educ. Technol. 2015 , 30 , 157–165. [ Google Scholar ] [ CrossRef ]
- Król, K. Comparative analysis of selected online tools for JavaScript code minification. A case study of a map applica-tion. Geomat. Landmanag. Landsc. 2020 , 2 , 119–129. [ Google Scholar ] [ CrossRef ]
- Cummings, S.; White, N.; Schoenmakers, M.; van Reijswoud, V.; Koopman, M.; Zielinski, C.; Mugarura, C.; Assa, R.; Harish, S. Checklist for the development of portals for international development. Knowl. Manag. Dev. J. 2019 , 14 , 83–94. Available online: https://www.km4djournal.org/index.php/km4dj/article/view/384 (accessed on 1 July 2024).
- Marshall, P.; Morris, R.; Rogers, Y.; Kreitmayer, S.; Davies, M. Rethinking “Multi-User”: An in-the-Wild Study of How Groups Approach a Walk-up-and-Use Tabletop Interface. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, Montréal, QC, Canada, 22–27 April 2021; ACM: Vancouver, BC, Canada, 2011; pp. 3033–3042. [ Google Scholar ] [ CrossRef ]
- He, X.; Persson, H.; Östman, A. Geoportal usability evaluation. Int. J. Spat. Data Infrastruct. Res. 2012 , 7 , 88–106. [ Google Scholar ] [ CrossRef ]
- ISO 9241-11:2018 ; Ergonomics of Human-System Interaction—Part 11: Usability: Definitions and Concepts. ISO: Geneva, Switzerland, 2018. Available online: https://www.iso.org/standard/63500.html (accessed on 1 July 2024).
- Arthana, I.K.R.; Pradnyana, I.M.A.; Dantes, G.R. Usability Testing on Website Wadaya Based on ISO 9241-11. J. Phys. Conf. Ser. 2019 , 1165 , 012012. [ Google Scholar ] [ CrossRef ]
- Travis, D. 247 Web Usability Guidelines. Available online: http://www.userfocus.co.uk/resources/guidelines.html (accessed on 1 July 2024).
- Martínez-Falero, J.; Ayuga-Tellez, E.; Gonzalez-Garcia, C.; Grande-Ortiz, M.; Garrido, A. Experts’ Analysis of the Quality and Usability of SILVANET Software for Informing Sustainable Forest Management. Sustainability 2017 , 9 , 1200. [ Google Scholar ] [ CrossRef ]
- Król, K.; Zdonek, D.; Sroka, W. Functionality Assessment Checklist for Evaluating Geoportals Useful in Planning Sustainable Tourism. Sustainability 2024 , 16 , 5242. [ Google Scholar ] [ CrossRef ]
- ISO/IEC 25000:2014 ; Systems and Software Engineering—Systems and Software Quality Requirements and Evaluation (SQuaRE)—Guide to SQuaRE (Edition 2, 2014). ISO: Geneva, Switzerland, 2014. Available online: https://www.iso.org/standard/64764.html (accessed on 1 July 2024).
- ISO/IEC 25010:2023 ; Systems and Software Engineering—Systems and Software Quality Requirements and Evaluation (SQuaRE)—Product Quality Model (Edition 2, 2023). ISO: Geneva, Switzerland, 2023. Available online: https://www.iso.org/standard/78176.html (accessed on 1 July 2024).
- Namoun, A.; Alrehaili, A.; Tufail, A. A Review of Automated Website Usability Evaluation Tools: Research Issues and Challenges. In Design, User Experience, and Usability: UX Research and Design ; Soares, M.M., Rosenzweig, E., Marcus, A., Eds.; Springer International Publishing: Cham, Switzerland, 2021; Volume 12779, pp. 292–311. [ Google Scholar ] [ CrossRef ]
- Komarkova, J.; Sedlak, P.; Struska, S.; Dymakova, A. Usability Evaluation the Prague Geoportal: Comparison of Methods. In Proceedings of the 2019 International Conference on Information and Digital Technologies (IDT), Zilina, Slovakia, 25–27 June 2019; IEEE: Piscataway, NJ, USA, 2019; pp. 223–228. [ Google Scholar ] [ CrossRef ]
- Jabłonowski, J.; Gołębiowska, I. Multi-Criteria Assessment of the Official Map Services of Capital City of Warsaw. Pol. Cartogr. Rev. 2019 , 51 , 67–79. [ Google Scholar ] [ CrossRef ]
- Nielsen, J.; Molich, R. Heuristic Evaluation of User Interfaces. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems Empowering People—CHI ’90, Seattle, WA, USA, 1–5 April 1990; ACM Press: New York, NY, USA, 1990; pp. 249–256. [ Google Scholar ] [ CrossRef ]
- Nielsen, J. Heuristic evaluation. In Usability Inspection Methods ; Nielsen, J., Mack, R.L., Eds.; John Wiley & Sons, Inc.: New York, NY, USA, 1994. [ Google Scholar ]
- Levi, M.D.; Conrad, F.G. Usability Testing of World Wide Web Sites. In Proceedings of the CHI ’97 Extended Abstracts on Human Factors in Computing Systems Looking to the Future—CHI ’97, Atlanta, GA, USA, 22–27 March 1997; ACM Press: New York, NY, USA, 1997; p. 227. [ Google Scholar ] [ CrossRef ]
- Berkman, M.I.; Karahoca, D. Re-Assessing the Usability Metric for User Experience (UMUX) Scale. J. Usability Stud. 2016 , 11 , 89–109. Available online: https://uxpajournal.org/assessing-usability-metric-umux-scale/ (accessed on 1 July 2024).
- Klug, B. An Overview of the System Usability Scale in Library Website and System Usability Testing. Weav. J. Libr. User Exp. 2017 , 1 . [ Google Scholar ] [ CrossRef ]
- Borsci, S.; Federici, S.; Bacci, S.; Gnaldi, M.; Bartolucci, F. Assessing User Satisfaction in the Era of User Experience: Comparison of the SUS, UMUX, and UMUX-LITE as a Function of Product Experience. Int. J. Hum.–Comput. Interact. 2015 , 31 , 484–495. [ Google Scholar ] [ CrossRef ]
- Lewis, J.R. Measuring Perceived Usability: The CSUQ, SUS, and UMUX. Int. J. Hum.–Comput. Interact. 2018 , 34 , 1148–1156. [ Google Scholar ] [ CrossRef ]
- Finstad, K. The Usability Metric for User Experience. Interact. Comput. 2010 , 22 , 323–327. [ Google Scholar ] [ CrossRef ]
- Lewis, J.R. Critical Review of “The Usability Metric for User Experience”. Interact. Comput. 2013 , 25 , 320–324. [ Google Scholar ] [ CrossRef ]
- Sauro, J. SUPR-Q: A comprehensive measure of the quality of the website user experience. J. Usability Stud. 2015 , 10 , 68–86. Available online: https://uxpajournal.org/supr-q-a-comprehensive-measure-of-the-quality-of-the-website-user-experience/ (accessed on 1 July 2024).
- Chin, J.P.; Diehl, V.A.; Norman, L.K. Development of an Instrument Measuring User Satisfaction of the Human-Computer Interface. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems—CHI ’88, Washington, DC, USA, 15–19 May 1988; ACM Press: New York, NY, USA, 1988; pp. 213–218. [ Google Scholar ] [ CrossRef ]
- Feizi, A.; Wong, C.Y. Usability of user interface styles for learning a graphical software application. In Proceedings of the 2012 International Conference on Computer & Information Science (ICCIS), Kuala Lumpur, Malaysia, 12–14 June 2012; IEEE: Piscataway, NJ, USA, 2012; Volume 2, pp. 1089–1094. [ Google Scholar ] [ CrossRef ]
- Adinda, P.P.; Suzianti, A. Redesign of User Interface for E-Government Application Using Usability Testing Method. In Proceedings of the 4th International Conference on Communication and Information Processing, Qingdao, China, 2–4 November 2018; ACM: New York, NY, USA, 2018; pp. 145–149. [ Google Scholar ] [ CrossRef ]
- Fang, Y.-M.; Lin, C. The Usability Testing of VR Interface for Tourism Apps. Appl. Sci. 2019 , 9 , 3215. [ Google Scholar ] [ CrossRef ]
- Kirakowski, J. The software usability measurement inventory: Background and usage. In Usability Evaluation in Industry ; Jordan, P., Thomas, B., Weerdmeester, B.A., McClelland, I.L., Eds.; Taylor & Francis: London, UK, 1996; pp. 169–178. [ Google Scholar ]
- Lewis, J.R. Psychometric Evaluation of the Post-Study System Usability Questionnaire: The PSSUQ. Proc. Hum. Factors Soc. Annu. Meet. 1992 , 36 , 1259–1260. [ Google Scholar ] [ CrossRef ]
- Chiew, T.K.; Salim, S.S. WEBUSE: Website Usability Evaluation Tool. Malays. J. Comput. Sci. 2003 , 16 , 47–57. [ Google Scholar ]
- Karani, A.; Thanki, H.; Achuthan, S. Impact of University Website Usability on Satisfaction: A Structural Equation Modelling Approach. Manag. Labour Stud. 2021 , 46 , 119–138. [ Google Scholar ] [ CrossRef ]
- Blake, M.; Majewicz, K.; Tickner, A.; Lam, J. Usability analysis of the Big Ten Academic Alliance Geoportal: Findings and recommendations for improvement of the user experience. Code4Lib J. 2017 , 38 . Available online: https://journal.code4lib.org/articles/12932 (accessed on 1 July 2024).
- Duque Vaca, M.; Romero Canizares, F.; Jimenez Builes, J. Validating a Georeferenced Map Viewer Through Online and Manual Tests. In Proceedings of the 2019 International Conference on Inclusive Technologies and Education (CONTIE), San Jose del Cabo, Mexico, 30 October–1 November 2019; IEEE: Piscataway, NJ, USA, 2019; pp. 91–916. [ Google Scholar ] [ CrossRef ]
- Gkonos, C.; Iosifescu Enescu, I.; Hurni, L. Spinning the Wheel of Design: Evaluating Geoportal Graphical User Interface Adaptations in Terms of Human-Centred Design. Int. J. Cartogr. 2019 , 5 , 23–43. [ Google Scholar ] [ CrossRef ]
- Martins, V.E.; Schmidt, M.A.R.; Delazari, L.S. Selecting Usability Heuristics to Evaluate Responsive Maps: Case Study WebGIS UFPR CampusMap. Abstr. Int. Cartogr. Assoc. 2021 , 3 , 1–2. [ Google Scholar ] [ CrossRef ]
- Kortum, P.; Peres, S.C. The Relationship Between System Effectiveness and Subjective Usability Scores Using the System Usability Scale. Int. J. Hum.–Comput. Interact. 2014 , 30 , 575–584. [ Google Scholar ] [ CrossRef ]
- Bangor, A.; Kortum, P.; Miller, J.A. Determining what individual SUS scores mean: Adding an adjective rating scale. J. Usability Stud. 2009 , 4 , 114–123. [ Google Scholar ]
- Capeleti, B.S.; Santos, C.Q.; De Souza, J.I.; Freire, A.P. Usability Evaluation of a Brazilian Dam Safety Data Exploration Platform: A Consolidation of Results from User Tests and Heuristic Evaluation. In Human-Computer Interaction—INTERACT 2023 ; Abdelnour Nocera, J., Kristín Lárusdóttir, M., Petrie, H., Piccinno, A., Winckler, M., Eds.; Springer Nature Switzerland: Cham, Switzerland, 2023; Volume 14145, pp. 100–119. [ Google Scholar ] [ CrossRef ]
- Bugs, G.; Granell, C.; Fonts, O.; Huerta, J.; Painho, M. An Assessment of Public Participation GIS and Web 2.0 Technologies in Urban Planning Practice in Canela, Brazil. Cities 2010 , 27 , 172–181. [ Google Scholar ] [ CrossRef ]
- Słomska-Przech, K.; Panecki, T.; Pokojski, W. Heat Maps: Perfect Maps for Quick Reading? Comparing Usability of Heat Maps with Different Levels of Generalization. ISPRS Int. J. Geo-Inf. 2021 , 10 , 562. [ Google Scholar ] [ CrossRef ]
- Unrau, R.; Kray, C. Mining Map Interaction Semantics in Web-Based Geographic Information Systems (WebGIS) for Usability Analysis. AGILE GIScience Ser. 2021 , 2 , 1–11. [ Google Scholar ] [ CrossRef ]
- Unrau, R.; Kudekar, A.; Kray, C. Interaction Pattern Analysis for WebGIS Usability Evaluation. Trans. GIS 2022 , 26 , 3374–3388. [ Google Scholar ] [ CrossRef ]
- Unrau, R.; Kray, C. Enhancing Usability Evaluation of Web-Based Geographic Information Systems (WebGIS) with Visual Analytics. In Proceedings of the 11th International Conference on Geographic Information Science (GIScience 2021)—Part I. Leibniz International Proceedings in Informatics (LIPIcs) ; Schloss Dagstuhl—Leibniz-Zentrum für Informatik: Wadern, Germany, 2020; Volume 177, pp. 15:1–15:16. [ Google Scholar ] [ CrossRef ]
- Abraham, S.A. Usability Problems in GI Web Applications: A Lesson from Literature. AGILE GISci. Ser. 2021 , 2 , 1–7. [ Google Scholar ] [ CrossRef ]
- Nielsen, J.; Landauer, T.K. A Mathematical Model of the Finding of Usability Problems. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems—CHI ’93, Amsterdam, The Netherlands, 24–29 April 1993; ACM Press: New York, NY, USA, 1993; pp. 206–213. [ Google Scholar ] [ CrossRef ]
- Mahatody, T.; Sagar, M.; Kolski, C. State of the Art on the Cognitive Walkthrough Method, Its Variants and Evolutions. Int. J. Hum.–Comput. Interact. 2010 , 26 , 741–785. [ Google Scholar ] [ CrossRef ]
- Gossen, T.; Nitsche, M.; Nürnberger, A. Knowledge Journey: A Web Search Interface for Young Users. In Proceedings of the Symposium on Human-Computer Interaction and Information Retrieval, Cambridge, CA, USA, 4 October 2012; ACM: New York, NY, USA, 2012; pp. 1–10. [ Google Scholar ] [ CrossRef ]
- Ekşioğlu, M.; Kiris, E.; Çapar, B.; Selçuk, M.N.; Ouzeir, S. Heuristic Evaluation and Usability Testing: Case Study. In Internationalization, Design and Global Development ; Rau, P.L.P., Ed.; Springer: Berlin/Heidelberg, Germany, 2011; Volume 6775, pp. 143–151. [ Google Scholar ] [ CrossRef ]
- McCloskey, M. Turn User Goals into Task Scenarios for Usability Testing. Nielsen Norman Group. Available online: https://www.nngroup.com/articles/task-scenarios-usability-testing/ (accessed on 1 July 2024).
- Brooke, J. SUS: A ‘quick and dirty’ usability scale. In Usability Evaluation in Industry ; Jordan, P.W., Thomas, B., Weerdmeester, B.A., McClelland, I.L., Eds.; Taylor and Francis: London, UK, 1996; pp. 189–194. [ Google Scholar ]
- Bangor, A.; Kortum, P.T.; Miller, J.T. An Empirical Evaluation of the System Usability Scale. Int. J. Hum.–Comput. Interact. 2008 , 24 , 574–594. [ Google Scholar ] [ CrossRef ]
- Król, K.; Kukulska-Kozieł, A.; Cegielska, K.; Salata, T.; Hernik, J. Turbulent Events Effects: Socioeconomic Changes in Southern Poland as Captured by the LSED Index. Sustainability 2023 , 16 , 38. [ Google Scholar ] [ CrossRef ]
- Nielsen, J. Usability Engineering ; Academic Press, Inc.: Cambridge, MA, USA, 1993. [ Google Scholar ]
- Nielsen, J. Website Response Times. Nielsen Norman Group. Available online: https://www.nngroup.com/articles/website-response-times/ (accessed on 1 July 2024).
- Król, K.; Sroka, W. Internet in the Middle of Nowhere: Performance of Geoportals in Rural Areas According to Core Web Vitals. ISPRS Int. J. Geo-Inf. 2023 , 12 , 484. [ Google Scholar ] [ CrossRef ]
- Quiñones, D.; Barraza, A.; Rojas, L. User Experience Heuristics for Geoportals. In Usability and User Experience ; Ahram, T., Falcão, C., Eds.; AHFE International: Orlando, FL, USA, 2022; Volume 39. [ Google Scholar ] [ CrossRef ]
- Butkovic, A.; McArdle, G.; Bertolotto, M. A Framework to Measure User Experience of Geoportals. In Proceedings of the IECHCI2023, Erzurum, Turkiye, 23–25 November 2023; Volume 104, pp. 79–84. [ Google Scholar ]
- Ferrer, M.Á.; Aguirre, E.R.; Méndez, R.E.; Mediavilla, D.G.; Almonacid, N.J. UX Research: Investigación en experiencia de usuario para diseño de mapa interactivo con variables georreferenciadas en EMR. Rev. Espac. 2020 , 41 , 27–45. Available online: https://www.revistaespacios.com/a20v41n01/20410127.html (accessed on 1 July 2024).
- Bonastre, L.; Granollers, T. A set of heuristics for user experience evaluation in e-Commerce websites. In Proceedings of the Seventh International Conference on Advances in Computer-Human Interactions (ACHI 2014), Barcelona, Spain, 23–27 March 2014; pp. 27–34. [ Google Scholar ]
- Horbiński, T.; Cybulski, P.; Medyńska-Gulij, B. Graphic Design and Button Placement for Mobile Map Applications. Cartogr. J. 2020 , 57 , 196–208. [ Google Scholar ] [ CrossRef ]
- Kellenberger, B.; Iosifescu Enescu, I.; Nicola, R.; Iosifescu Enescu, C.M.; Panchaud, N.H.; Walt, R.; Hotea, M.; Piguet, A.; Hurni, L. The Wheel of Design: Assessing and Refining the Usability of Geoportals. Int. J. Cartogr. 2016 , 2 , 95–112. [ Google Scholar ] [ CrossRef ]
- Lallemand, C.; Koenig, V. Lab Testing Beyond Usability: Challenges and Recommendations for Assessing User Experiences. J. Usability Stud. 2017 , 12 , 133–154. Available online: https://orbilu.uni.lu/handle/10993/31420 (accessed on 1 July 2024).
- Dickinger, A.; Stangl, B. Website Performance and Behavioral Consequences: A Formative Measurement Approach. J. Bus. Res. 2013 , 66 , 771–777. [ Google Scholar ] [ CrossRef ]
- Green, D.T.; Pearson, J.M. Integrating Website Usability with the Electronic Commerce Acceptance Model. Behav. Inf. Technol. 2011 , 30 , 181–199. [ Google Scholar ] [ CrossRef ]
Click here to enlarge figure Design Attributes | G1 | G2 | G3 |
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W3C specification | XHTML 1.0 Transitional | HTML 5 | HTML 5 | Software framework | JavaScript, Maphilight jQuery plugin | Geoxa Viewer, Geoxa Map Serwer | Leaflet, OpenStreetMap | Base map | raster | vector | vector | Design and implementation | University of Agriculture in Kraków | CGIS Geoxa | GISON | SUS Question | Type of Variable | Mobile Measurement |
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G1 | AM | MO | M | G2 | AM | MO | M | G3 | AM | MO | M |
---|
1. I think I would like to use this system frequently | BTB | 43 | 3.1 | 3 | 3 | 44 | 3.1 | 4 | 3 | 57 | 4.1 | 5 | 4 | 2. I consider the system unnecessarily complicated | STB | 29 | 2.1 | 1 | 2 | 33 | 2.4 | 2 | 2 | 25 | 1.8 | 2 | 2 | 3. I think the system is easy to use | BTB | 61 | 4.4 | 4 | 4 | 57 | 4.1 | 4 | 4 | 60 | 4.3 | 4 | 4 | 4. I think I should need technical assistance to be able to use the system | STB | 17 | 1.2 | 1 | 1 | 21 | 1.5 | 1 | 1 | 20 | 1.4 | 1 | 1 | 5. I find various functions of the system to be well integrated | BTB | 49 | 3.5 | 4 | 4 | 45 | 3.2 | 4 | 3 | 55 | 3.9 | 4 | 4 | 6. I think the system has too many inconsistencies | STB | 28 | 2.0 | 2 | 2 | 32 | 2.3 | 2 | 2 | 29 | 2.1 | 2 | 2 | 7. I imagine most people would learn how to use the system very quickly | BTB | 66 | 4.7 | 5 | 5 | 56 | 4.0 | 4 | 4 | 58 | 4.1 | 4 | 4 | 8. I think the system is very inconvenient to use | STB | 26 | 1.9 | 1 | 1.5 | 27 | 1.9 | 2 | 2 | 21 | 1.5 | 1 | 1 | 9. I felt confident using the system | BTB | 57 | 4.1 | 4 | 4 | 48 | 3.4 | 4 | 3.5 | 57 | 4.1 | 5 | 4 | 10. I had to learn a lot before I could start using the system | STB | 25 | 1.8 | 1 | 2 | 31 | 2.2 | 2 | 2 | 26 | 1.9 | 2 | 2 | SUS Question | Type of Variable | Desktop Mode Measurements |
---|
G1 | AM | MO | M | G2 | AM | MO | M | G3 | AM | MO | M |
---|
1. I think I would like to use this system frequently | BTB | 42 | 3.0 | 3 | 3 | 48 | 3.4 | 4 | 3.5 | 58 | 4.1 | 4 | 4 | 2. I consider the system unnecessarily complicated | STB | 27 | 1.9 | 1 | 1.5 | 29 | 2.1 | 1 | 2 | 23 | 1.6 | 2 | 2 | 3. I think the system is easy to use | BTB | 63 | 4.5 | 5 | 4.5 | 59 | 4.2 | 4 | 4 | 62 | 4.4 | 5 | 4.5 | 4. I think I should need technical assistance to be able to use the system | STB | 16 | 1.1 | 1 | 1 | 20 | 1.4 | 1 | 1 | 18 | 1.3 | 1 | 1 | 5. I find various functions of the system to be well integrated | BTB | 48 | 3.4 | 4 | 3.5 | 52 | 3.7 | 5 | 4 | 59 | 4.2 | 4 | 4 | 6. I think the system has too many inconsistencies | STB | 28 | 2.0 | 2 | 2 | 26 | 1.9 | 2 | 2 | 24 | 1.7 | 2 | 2 | 7. I imagine most people would learn how to use the system very quickly | BTB | 61 | 4.4 | 5 | 4.5 | 56 | 4.0 | 5 | 4 | 58 | 4.1 | 4 | 4 | 8. I think the system is very inconvenient to use | STB | 34 | 2.4 | 1 | 2.5 | 26 | 1.9 | 1 | 2 | 22 | 1.6 | 1 | 1.5 | 9. I felt confident using the system | BTB | 58 | 4.1 | 4 | 4 | 57 | 4.1 | 4 | 4 | 62 | 4.4 | 5 | 4.5 | 10. I had to learn a lot before I could start using the system | STB | 23 | 1.6 | 1 | 1 | 27 | 1.9 | 1 | 2 | 26 | 1.9 | 1 | 1 | Geoportal | GTmetrix | Pingdom | PageSpeed Insights | GiftOfSpeed |
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Performance (%) | Structure (%) | Performance (%) | Performance (%) | Speed Score (%) |
---|
G1 | 98 | 90 | 91 | 100 | 98 | G2 | 69 | 74 | 83 | 93 | 74 | G3 | 49 | 52 | 71 | 55 | 52 | | The statements, opinions and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of MDPI and/or the editor(s). MDPI and/or the editor(s) disclaim responsibility for any injury to people or property resulting from any ideas, methods, instructions or products referred to in the content. |
Share and CiteKról, K. Retrospective Analysis of Municipal Geoportal Usability in the Context of the Evolution of Online Data Presentation Techniques. ISPRS Int. J. Geo-Inf. 2024 , 13 , 307. https://doi.org/10.3390/ijgi13090307 Król K. Retrospective Analysis of Municipal Geoportal Usability in the Context of the Evolution of Online Data Presentation Techniques. ISPRS International Journal of Geo-Information . 2024; 13(9):307. https://doi.org/10.3390/ijgi13090307 Król, Karol. 2024. "Retrospective Analysis of Municipal Geoportal Usability in the Context of the Evolution of Online Data Presentation Techniques" ISPRS International Journal of Geo-Information 13, no. 9: 307. https://doi.org/10.3390/ijgi13090307 Article MetricsArticle access statistics, further information, mdpi initiatives, follow mdpi. Subscribe to receive issue release notifications and newsletters from MDPI journals Other destinations- 53.302778 108.004722 2 Lake Baikal — located between Buryatia and Irkutsk Oblast , is the deepest and oldest lake in the world and also the planet's largest body of freshwater.
- 51.72865 103.72159 3 Circum-Baikal Railway
- 53.15 107.4 4 Olkhon — the largest island in lake Baikal is a real jewel, and worthy of the effort it takes to reach it.
- 51.8531 104.882 5 Pribaikalsky National Park
Irkutsk Oblast, in particular the capital Irkutsk and the shores of Lake Baikal , is likely Siberia 's top travel destination. Russian is understood and spoken by all; some members of ethnic minorities (especially the Buryat) are bilingual and speak their native languages with one another. Irkutsk Airport ( IKT IATA ) is one of Russia 's most important and receives international flights from Mongolia , China , South Korea , Thailand , and Uzbekistan . Domestic flights are available from most major Russian airports, including: Saint Petersburg , Moscow , Khabarovsk , Yekaterinburg , Vladivostok , and many others. Despite the importance of Irkutsk Airport, most travellers still arrive via the Trans-Siberian Railway , which stops at (from west to east): Taishet (junction with the Baikal-Amur Mainline ), Nizhneudinsk , Usolye-Sibirskoe , Angarsk , Irkutsk , among other less frequented settlements. Baikal Highway crosses the region from west to east. A bus from Ulan-Ude connects Irkutsk with Buryatia. Bratsk and Ust-Orda are accessible via the Baikal-Amur Mainline from the Trans-Siberian Railway junction at Taishet. AQUARIUS IV Yacht for SaleSpecifications. Builder | CBI NAVI | Length (LOA) | 114' | Year | 1995 | Year Refit | 2019 | Gross Tonn. | 247 | Draft | 11' | Beam | 24' | Range | 5,200 NM | Location | United States | Accommodations Crew Cabins | 5 | Crew Sleeps | 5 | Dimensions & Capacity LOA | 114' | LWL | 101' | Max Draft | 11' | Fuel Tank | 12,680 g | Fresh Water | 3,215 g | Gross Tonn. | 247 | Construction Hull Material | Steel | Hull Config | Full Displacement | Ext. Designer | Willem De Vries Lentsch Jr | Int. Designer | Willem De Vries Lentsch Jr | Cruising Speed | 9 Knots | Range | 5,200 NM | Complete the form below and one of our experienced sales brokers will be in touch soon. Full DetailsOther machinery. - Air Compressor: Abac 24 It 2hp
- 2 x H55D1500 Clutch Hidraulic pump-shaft driven
- Fresh Water Filters: ldromar
- Fresh Waters Heaters: 4x Gianneschi 500 Lt
- Fresh Water Pressure System: Well Mate
- Fresh Water Pumps: 2 x Gianneschi&Ramacciotti
- Fuel Filtration: Alfa Laval MMB203
- Fuel transfer Pump: Gianneschi & Ramazzotti
- Fuel Filters: Racord (2x each machinery)
- Oil Pumps: Gianneschi & Ramazzotti
- Sewage System: Jets vacum Evac 900
- Sewage Treatment: Hamman System (600Lt)
Galley & Laundry Equipment- Freezers: 1x BEKO 2x Vitrifrigo
- Fridges: 1x Zanussi 1x Klarstein
- lcemaker: Hoshizaki
- Microwave oven: Samsung
- Oven: Dexion
- Dishwasher: 2x Miele
- Washing machine: Miele
- Dryer: Miele
Communication Equipment- VHF: JRC NCM-1770
- Satellite: Iridium
- Intercom: Panasonic
Navigation Equipment- Displays 3x JRC 18"
- Autopilot: C.plath Navipilot V
- Chart Plotter: Nobeltec Time zero
- Compass: Sperrymarine Navigat XMK2
- Radars: 2x JRC X Band
- GPS: 1x Furuno GPS/WA AS NAVIGATOR GP 321x Furuno GPS/WA AS NAVIGATOR GP 37
- AIS: FURUNO FA-100
- EPIRB: Sailor Cobham
- SART: Sailor SART 2
- NAVCOM: Lenovo
- SAT TV System: Seatel Cobram
- Anemometer: Raymarine
Entertainment Equipment- Main salon: Samsung 48" HD TV - SAT TV - Yamaha DVD-DX - Russound surround - Amplifier Rotel - 4 speakers - Panasonic Intercom
- Master cabin: Samsung 26" HD TV - SAT TV - Samsung bluray disc - Sony audio amplifier - 2x Clarion speakers - Beolit Bluetooth speaker - JVC stereo - Panasonic Intercom
- Guests Cabins x2: Samsung 28" HD TV - Samsung bluray disc - Clarion speaker - JVC stereo -Beolit Bluetooth speaker - Panasonic Intercom
- VIP Cabin: Samsung 32" HD TV - SAT TV - LG bluray disc - Clarion speaker - Beolit Bluetooth speaker - JVC stereo - Panasonic Intercom
- Captain's Cabin: Samsung 24" HD TV - SAT TV - Clarion speaker - JVC stereo
- Crew cabins x2: JVC stereo - Clarion speaker -Panasonic Intercom
- Galley: LG 28" HD TV - SAT TV - Philips 20" Monitor CCTV
- Fly bridge: Samsung 48" UHD TV - SAT TV - Numan amplifier - 4x speakers Bowers&Wilkins - Sony DVD bluray - Alexa speaker
- Stern living area: 2x LG 40" HD TV - SAT TV - 4x speakers Bowers&Wilkins - Alexa speaker
- Bridge: Alpine stereo - 4 speakers
Tenders & Toys- Jet Ski: SEADOO 230 HP M/y 2018
- 3x SEABOB F5s
- 1x Towable toy
- 1x watersky
- 1x SUP (stand-up paddle)
- 1x inflatable slide - custom made
- 1x inflatable platforme (m 3x3)
Deck Equipment- Anchors: 2 x 350 kg
- Anchor Chains: Total 10 lengths of 27.5 m each
- Anchor Windlasses: CBI navi (custom made)
- Capstans: CBI navi (custom made)
- Davits: Napoli Paolo e figli snc
- Gangway And Passerelle: Napoli Paolo e figli snc
- Paint Exterior: Awlgrip
- Paint Interior: International
- Paint Underwater: Seajet-antifouling (June 2022)
Safety & Security Equipment- CCTV: Polysion system (4 cameras)
- Fire Suppression: Smoke detectors - CO2 system
- Fire Pumps: Gianeschi&Ramacciotti
- Life Rafts: 4x EV lso 9650
Refit HistoryMain upgrades done winter 2020/21: - New camshafts have been replaced on port main engine.
- Valve clearance adjustment has been carried out on both main engines
- Carried out a calibration to injection pump and injectors
- Total overhauled has been carried out on port genset.
- Ordinary maintenance to main engines (new oil, new filters, new belts)
- Ordinary maintenance to gensets (new oil, new filters, new belts)
- Both anchor windlass has been overhauled and painted.
- Engine room blowers have been overhauled.
- Fresh water pumps have been overhauled.
- Fresh water tanks have been inspected, cleaned and sanitized
- Twin cabins bathrooms have been completely refitted with new Carrara marble floor, new
- Carrara marble tops.
- Cieling lights have been chromed
- Transparent coating of the wooden handrail has been removed and sanded. Teak sealer has been applied.
- The teak on the main bridge, fly bridge and upper deck has been sanded
- The super structure (flybridge, upper deck) has been polished.
- New blue navy sunshade has been replaced on flybridge.
- New plexiglass bottles holder has been made for the bar in the saloon.
- New mini-fridges have been installed in Master cabin, VIP cabin, in Saloon and galley.
- New Miele dryer, new Miele washing machine and 2 New Miele dishwashers have been replaced
- New camshafts have been replaced on starboard main engine
- New timing gears have been replaced on starboard main engine
- Starboard main engine sea water pump has been replaced
- Total overhauled has been carried out on starboard genset
- Partial overhauled has been carried out on night genset
- Total overhauled has been carried out to Alfa Laval fuel separator
- Fuel tanks valves have been dismounted, checked and painted.
- New 4 heaters of the boiler were replaced
The following motors and pumps have been overhauled (winter 2020/21) - Fire fighting pump
- Spare fire fighting pups
- Evac pump (Hammann System)
- 2 x Hammann pumps
- Air condition sea water pump
- Air condition circulating pump
- Water maker high pressure pump
- Dirty oil transfer pump
- 2 x Fresh water pump
- Air condition inverter dashboard has been replaced
- Air condition compressors pipes have been checked and cleaned with specific chemicals
- Water makers membranes and filters have been replaced
- Tv Satellite antenna has been replaced
- The hull has been sanded with sandblaster and new cycle of antifouling has been applied
- All Internal accessories (hinges, keys, studs, buttons, lamps, ext) have been chromed
Main upgrades done during winter 2019/20: - Both Main engines have been painted
- A specific inspection and extraordinary maintenance were carried out to the sea valves and sea chests in engine room.
- A calibration was carried out to propellers and shafts while bushings were replaced.
- In both generators, the oil seal between the engine block and the electric part had been replaced.
- Generators heat exchangers had been checked and cleaned.
- New 4 heaters of the boiler were replaced.
- A maintenance was carried out to the bilge pump in engine room.
- EVAC pump (Hammann System) has been overhauled.
- New cushions have been installed on the bow.
- Internal wall lights frame have been renewed with new leather
- Internal wall lights have been replaced.
Main upgrades done during winter 2018/19: - A new shore power transformer, by Sae Electronic Conversion, has been replaced in lazarette
- Master cabin bathroom and VIP stateroom bathroom have been completely refitted with new
- Carrara marble floor, new Carrara marble tops, new taps, new sinks, new sanitaries (WC and bidet) and new accessories.
- Twin cabins bathrooms have been partially refitted with new taps, new sinks, new sanitaries (WC and bidet) and new accessories.
- A preventive maintenance was carried out to main engines:
- Checked crankshaft bearings clearance (good clearance)
- Carried out a total overhaul to both turbochargers
- Replaced new sleeves, new pistons and new piston rings, piston roads, bushings
- Full overhauling on heads
- Air condition sea water pump has been replaced
- Master bed ceiling has been replaced with new tissue
- Master chair has been renewed with new tissue
- Master cabin carpet has been replaced
- Dexion oven have been checked and maintained.
- Dexion electric plates have been replaced
- Zanussi fridge compressor has been replaced
- All plugs, sockets and frames have been replaced
Similar Yachts for SaleCbi navi yachts for sale. Proud to be part of the MarineMax family © 2024 Northrop & Johnson M/Y Aquarius IV35 m, 1993 , Carp Navi Please use a modern browser to view this website. Some elements might not work as expected when using Internet Explorer. - Landing Page
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AQUARIUS YACHT CHARTER92m / 301'10 feadship 2016. Cabin Configuration Special Features: - Bright and airy - floor-to-ceiling windows throughout providing panoramic views
- Dedicated owner's penthouse with private aft balcony
- Impressive 6.5-metre swimming pool which converts to a dance floor
- Expansive swim platform
- Premium wellness facilities, including gym, massage therapy room and beauty salon
- Array of water sport toys and tenders, including a custom glass-roofed Venetian taxi and Riva tender
- Cinema suite
- Large on-deck Jacuzzi
Fusing iconic Feadship design with contemporary finishes, superyacht AQUARIUS is a distinctly sophisticated superyacht promising unforgettable luxury yacht charters The 92m/301'10" motor yacht 'Aquarius' by the Dutch shipyard Feadship offers flexible accommodation for up to 12 guests in 7 cabins and features interior styling by Dutch designer Sinot Yacht Design. Built in 2016, Aquarius is custom-built for world-class luxury yacht chartering, offering a wealth of spacious living areas and fabulous amenities, you'll be in for a treat from the moment you step on board. She has sensational features such as a beauty salon, spa, elevator, underwater lights, beach club and gym. Guest AccommodationAquarius offers guest accommodation for up to 12 guests in 7 suites comprising a master suite and six VIP cabins. The master suite features extensive storage space provided by the dressing room benefits from a his and her bathroom. Additionally, there is a staff cabin on board. A crew of thirty-one, who specialize in creating exceptional charters, are on hand to provide guests with a yacht charter vacation to remember. Onboard Comfort & EntertainmentKeeping comfortable and entertained on Aquarius is easy thanks to the available amenities, particularly a state-of-the-art movie theatre for movie nights. Aquarius is home to a beauty salon, where guests can enjoy a number of beauty treatments or take the opportunity to be thoroughly pampered and indulged in the spa. Take a plunge in the pool under the sun or elsewhere, make your day truly exceptional at the beach club. A gym with all the latest equipment is available for a good work out plus sit back with a glass of champagne in the deck jacuzzi. Aquarius benefits from some excellent features to improve your charter, particularly an elevator, making any part of the yacht quickly and easily accessible. Stay connected to the outside world on long voyages with satellite communications or soak up the atmosphere after dark with dramatic underwater lights. Take advantage of the on board Wi-Fi and stay connected at all times or elsewhere, you can stay comfortable on board whatever the weather, with air conditioning during your charter. Performance & RangeBuilt with a steel hull and aluminium superstructure, she offers greater on-board space and is more stable when at anchor thanks to her full-displacement hull. Powered by twin MTU engines, she comfortably cruises at 12 knots, reaches a maximum speed of 17 knots with a range of up to 5,500 nautical miles from her 275,800 litre fuel tanks at cruising speed. An advanced stabilisation system on board reduces the side-to-side roll of the yacht and promises guests exceptional comfort levels at anchor or when underway. When not cruising Aquarius has onboard an incredible selection of water toys and accessories for you and your guests to connect with the waters around you. Principle among these are waterslides for hours of fun for all ages. Take to the sea on the Jet Skis offering you power and control on the water. Another excellent feature are towable toys offering fun and adventure. If that isn't enough Aquarius also features waterskis, kayaks and snorkelling equipment. Aquarius features three tenders, but leading the pack is a 10.2m/33'6" Serenella Limo Tender to transport you in style. Book your next the Mediterranean luxury yacht charter aboard Aquarius this summer. She is already accepting bookings this winter for cruising in the Caribbean. With a highly experienced and talented crew of 31, you can be sure that each and every need will be met and exceeded while on board this prestigious motor yacht. TESTIMONIALS There are currently no testimonials for Aquarius, please provide . Aquarius Photos Length | 92m / 301'10 | Beam | 13.45m / 44'2 | Draft | 4.25m / 13'11 | Gross Tonnage | 2,856 GT | Cruising Speed | 12 Knots | Built | | Builder | Feadship | Model | Custom | Exterior Designer | De Voogt | Interior Design | Sinot Yacht Design | Amenities & Entertainment For your relaxation and entertainment Aquarius has the following facilities, for more details please speak to your yacht charter broker. Aquarius is reported to be available to Charter with the following recreation facilities: - 1 x 10.2m / 33'6 Serenella Limo Tender
- 1 x 8.2m / 26'11 Riva Tender
- 1 x 6.4m / 21' Palfinger Rescue Boat
For a full list of all available amenities & entertainment facilities, or price to hire additional equipment please contact your broker. Aquarius Awards & Nominations - Boat International Design & Innovation Awards 2018 Best General Arrangement and Deck Design Finalist
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- Entertainment
Aquarius is reported to be available to Charter with the following entertainment facilities: - Large media room on Owner’s deck
- Backbone based upon fibre-optic/Cat 6 and coaxial cabling
- AV control system: iPad and desk top panels, and in-wall touch screens installed with custom iPad docks
- Satellite TV and Kaleidescape entertainment system throughout providing on-demand movie/audio/Apple TV/radio and a mix of central sources B&W speakers, Purelink AV distribution, British Sound Web Audio Distribution, Onkyo/Crown/Denon amplifiers
- Party mode available for entertaining in public spaces
For a full list of all available amenities & entertainment facilities, or price to hire additional equipment please contact your broker. 'Aquarius' Charter Rates & Destinations Summer Season May - September $1,500,000 p/week + expenses High Season Cruising Regions Mediterranean France, Italy, Monaco HOT SPOTS: Amalfi Coast, Calvi, Cannes, Corsica, French Riviera, Ibiza, Ligurian Riviera, Portofino, Sardinia, St Tropez, The Balearics Winter Season October - April Caribbean Antigua, Bahamas, Saint Martin, St Barts HOT SPOTS: Virgin Islands Charter Aquarius To charter this luxury yacht contact your charter broker , or we can help you. To charter this luxury yacht contact your charter broker or Update your yacht Yacht Owner, Captain or Central Agents - Send us latest Photos, Charter Rates or Corrections Send Updates SIMILAR YACHTS FOR CHARTERfrom $965,000 p/week ♦︎ Silver Fast77m | SilverYachts from $670,000 p/week ♦︎ 81m | Feadship from $1,028,000 p/week ♦︎ 78m | Abeking & Rasmussen from $770,000 p/week 75m | Feadship from $900,000 p/week * 89m | Oceanco from $1,100,000 p/week 95m | Lurssen from $1,769,000 p/week ♦︎ 74m | Trinity Yachts from $611,000 p/week ♦︎ 90m | Oceanco from $1,334,000 p/week ♦︎ 80m | Yachtley from $891,000 p/week ♦︎ 80m | Abeking & Rasmussen from $1,150,000 p/week NOTE to U.S. Customs & Border Protection Specification SEASONAL CHARTER RATES - Share on Facebook
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About AquariusContact agent Period | Price/week | Location | Agent | Summer 2019 | from € 1,500,000 | Mediterranian | | Winter 2020 | from € 1,500,000 | Caribbean | | Specifications | Yard : | Feadship | Type : | Motor yacht | Guests : | 14 | Crew : | 31 | Cabins : | 7 | Length : | 92 m / 301′11″ | Beam : | 13.5 m / 44′4″ | Draft : | 3.95 m / 13′0″ | Year of build : | 2016 | Classification : | LR | Displacement : | Full displacement | | Type of engine : | Diesel | Brand : | MTU | Model : | 16V 4000 M63L | Engine power : | 3000 hp | Total power : | 6000 hp | Maximum speed : | 17 knots | Cruising speed : | 12 knots | Range : | 6500 nm | | Gross tonage : | 2856 | Hull : | Steel | Superstructure : | Aluminium | Decking : | Teak | Decks : | 3 | Interior designer : | Sinot Yacht Design | Exterior designer : | Sinot Yacht Design | | Water capacity : | 55400 | Fuel Capacity : | 304000 | Similar yachtsNew listings | |
COMMENTS
Sleeps 8 overnight. The 35.05m/115' motor yacht 'Aquarius IV' (ex. Alfa Sei) was built by CBI Navi in Italy at their Viareggio shipyard. Her interior is styled by design house CBI Navi and she was completed in 1993. This luxury vessel's exterior design is the work of De Vries Lentsch and she was last refitted in 2019.
Description. The 114'10" (35m) custom-built AQUARIUS IV is a striking motor yacht with a distinctive Willem de Vries Lentsch, Jr. exterior and interior design. Excellently maintained and regularly upgraded, the CBI Navi built boat sleeps eight guests in four cabins, with additional accommodation for five crew.
IYC is delighted to welcome 14' 10'' (35.00m) motor yacht AQUARIUS IV to its global sales fleet. Refit in 2019, the custom-built yacht sleeps eight guests in four cabins. In addition to a fully upgraded interior, the yacht's key features include large volume creating spacious guest areas, a large nautical mile range of 5,200 for ocean ...
AQUARIUS IV is a 35.05 m Motor Yacht, built in Italy by CBI-Navi and delivered in 1993.. Her top speed is 16.0 kn and she boasts a maximum range of 5000.0 nm when navigating at cruising speed, with power coming from two Deutz-MWM diesel engines.
Aquarius IV is a motor yacht with an overall length of m. The yacht's builder is Carp Navi from Italy, who launched Aquarius IV in 1993. The superyacht has a beam of m, a draught of m and a volume of . GT.. Aquarius IV features exterior design by De Vries Lentsch. Up to 8 guests can be accommodated on board the superyacht, Aquarius IV, and she also has accommodation for 5 crew members ...
AQUARIUS IV Motor Yacht For Sale. 114' 10" (35m) | 1995 | 8Guests | 4 Cabins. €2,750,000 EUR. Built in steel and aluminium to Lloyd's Register Classification and to a design by De Vries Lentsch, by Italian builder CBI Navi, AQUARIUS IV was delivered in 1995 and most recently refitted in 2019. A luxurious interior featuring mahogany ...
About Aquarius IV. Aquarius IV is a 35 m / 114′10″ luxury motor yacht. She was built by CBI Navi in 1995. With a beam of 7.6 m and a draft of 2.2 m, she has a steel hull and aluminium superstructure. This adds up to a gross tonnage of 247 tons. She is powered by Deutz engines of 1040 hp each giving her a maximum speed of 15 knots and a ...
35m CBI Navi Aquarius IV for sale. The 35 metre motor yacht Aquarius IV is newly listed for sale with Richard Gray of IYC. Built in steel and aluminium by Italian yard CBI Navi to a design by De Vries Lentsch, she was delivered in 1995 and had a major refit in 2013. Aquarius IV is asking €3,250,000 (VAT paid).
Motoryacht Aquarius IV is a beautiful motor yacht from 1995 with an overall length of 35mt/115′. Aquarius IV was built with steel hull and aluminum superstructure, with teak decks. Recently refitted in 2019, the yacht built by CBI Navi can accommodate eight guests in four cabins consisting of an owner's suite, a VIP suite and two doubles, all with en-suite bathrooms.
Aquarius IV. Used motor yacht for sale Aquarius IV - launched in 1995 by the CBI Navi shipyard with a recent refit in 2019. Interior: 4 cabins, 4 bathrooms. 1 Master double cabin with bathroom and shower cubicle. 1 VIP double cabin with bathroom and shower cubicle. 1 Double guest cabin with private bathroom and shower.
Overview. The 115' (35m) custom-built AQUARIUS IV is a striking motor yacht with a distinctive Willem de Vries Lentsch, Jr. exterior and interior design. Excellently maintained and regularly upgraded, the CBI Navi built boat sleeps eight guests in four cabins, with additional accommodation for five crew.. I n addition to a classic and warm interior, which is filled with natural light thanks ...
The luxury motor yacht Aquarius IV is displayed on this page merely for informational purposes and she is not necessarily available for yacht charter or for sale, nor is she represented or marketed in anyway by Trident Media Ltd. This document is not contractual. The yacht particulars displayed in the results above are displayed in good faith ...
Sleeps 8 overnight. The 35.05m/115' motor yacht 'Aquarius IV' (ex. Alfa Sei) was built by CBI Navi in Italy at their Viareggio shipyard. Her interior is styled by design house CBI Navi and she was completed in 1993. This luxury vessel's exterior design is the work of De Vries Lentsch and she was last refitted in 2019.
Aquarius is a 92-meter luxury yacht built by Feadship in 2016 for Steve Wynn. She has a stunning interior design by Sinot Exclusive Yacht Design, a glass-bottom pool, a helicopter pad, and a gym.
Overview. The 115' (35m) custom-built AQUARIUS IV is a striking motor yacht with a distinctive Willem de Vries Lentsch, Jr. exterior and interior design. Excellently maintained an
Click here to discover AQUARIUS IV yacht for sale in United States. This 114' (35m) Motor Yacht boat by CBI NAVI is for sale with Northrop & Johnson.
View pictures & full details of AQUARIUS IV, a Motor Yacht built in 1995 by CBI 35m and available for sale. ... AQUARIUS IV was launched in 1995 and most recently refitted in 2019.
Discover insights about motor yacht Aquarius IV (35m, 1993) crafted by Carp Navi on Yacht Career Hub. Explore valuable yacht reviews sharing onboard experiences, guiding your informed decisions in the maritime industry and enhancing your yachting career journey.
Aquarius is a 92m/301'10" motor yacht by Feadship, offering flexible accommodation for up to 12 guests and a range of amenities, including a swimming pool, spa, cinema and waterslides. Charter Aquarius in the Mediterranean in summer or the Caribbean in winter and enjoy the stunning views and destinations with her experienced crew.
Aquarius is a 92 m / 301′11″ luxury motor yacht. She was built by Feadship in 2016. With a beam of 13.5 m and a draft of 3.95 m, she has a steel hull and aluminium superstructure. This adds up to a gross tonnage of 2856 tons. She is powered by MTU engines of 3000 hp each giving her a maximum speed of 17 knots and a cruising speed of 12 knots. Aquarius's maximum range is estimated at 6500 ...