Ceiling and Threshold of PaaS Tools: The Role of Learnability in Tool Adoption

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• 关键词：PaaS ; Threshold ; Ceiling ; Learnability
• 刊名：Lecture Notes in Computer Science
• 出版年：2016
• 出版时间：2016
• 年：2016
• 卷：9856
• 期：1
• 页码：335-347
• 全文大小：914 KB
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• 作者单位：Rui Alves (22)
  Nuno Jardim Nunes (22) (23)
  
  22. Madeira Interactive Technologies Institute, Polo Científico e Tecnológico da Madeira, 2nd Floor Caminho da Penteada, 9020-105, Funchal, Madeira, Portugal
  23. Universidade da Madeira, Campus Universitário da Penteada, 9020-105, Funchal, Madeira, Portugal
  
• 丛书名：Human-Centered and Error-Resilient Systems Development
• ISBN：978-3-319-44902-9
• 刊物类别：Computer Science
• 刊物主题：Artificial Intelligence and Robotics
  Computer Communication Networks
  Software Engineering
  Data Encryption
  Database Management
  Computation by Abstract Devices
  Algorithm Analysis and Problem Complexity
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1611-3349
• 卷排序：9856

文摘

Cloud services are changing the software development context and are expected to increase dramatically in the forthcoming years. Within the cloud context, platform-as-a-service tools emerge as an important segment with an expected yearly growth between 25 to 50 % in the next decade. These tools enable businesses to design and deploy new applications easily, thereby reducing operational expenses and time to market. This is increasingly important due to the lack of professional developers and it also raises a long standing issue in computer-aided software engineering: the need for easy to learn (low-threshold), functional (high-ceiling) tools enabling non-experts to create and adapt new cloud services. Despite their importance and impact, no research to date addressed the measurement of tools’ ceiling and threshold. In this paper we describe a first attempt to advance the state of the art in this area through an in-depth usability study of platform-as-a-service tools in terms of their threshold (learnability) and ceiling (functionality). The measured learnability issues evidenced a strong positive correlation with usability defects and a weaker correlation with performance. Remarkably, the fastest and easiest to use and learn tool falls into the low-threshold/low-ceiling pattern.