1. Using DEMATEL to Analyze the Quality
Characteristics of Mobile Applications
Wen-Ming Han, Cheng-Hsien Hsu & Cheng-Yu Yeh
Takming University of Science and Technology,
Taiwan
Reporter : Cheng-Yu Yeh1/17
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2. Abstract
• This study applied DEMATEL to analyze Mobile APP quality
characteristics from the perspectives of Developers and Users.
• According to the results, users regard security as the most
important quality characteristic, while functional suitability,
usability and reliability are regarded as the most important
quality characteristics by developers.
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3. Overview
• Mobile App is the software on smartphones, tablets and other
mobile devices.
• ABI Research(2013). The Mobile App Market will be Worth $27
Billion USD($168 Billion RMB) in 2013 as Tablet Revenue Grows.
• Despite many mobile Apps are creative, the negligence of the key
factor, namely product quality, has led to usage problems and
negative reviews.
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4. Introduction
The purposes of this study are the following :
1) To explore the Mobile App software product quality characteristics to clearly grasp
the facts about Mobile App quality and provide mobile App developers with a clear
quality vision for planned control.
2) To explore the cognitive differences regarding quality characteristics from the
perspectives of developers and users.
The developers can find out whether their products meet the quality expectation of the
users, and carry out the proper control and quality improvement plan under limited
resources.
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5. Previous Works
• Behshid. B., Mohsen. K., Mohammad. K. A., (2009)
• Customizing ISO 9126 quality model for evaluation of B2B applications
• International Organization for Standardization, ISO/IEC 25010.
(2011)
• Systems and software engineering — Systems and software Quality
Requirements and Evaluation. (SQuaRE) — System and software
quality.
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6. What is software quality?
http://www.cse.dcu.ie/essiscope/sm2/charact.html6/17
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7. Quality
7
• Q = P/E
• Q：Quality of Products / Services
• P：Provide the feature of the Products /
Services（Performance）
• E：Fit the needs of customer
expectations
Quality Software Management
(Gerald M. Weinberg, 2006)
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8. ISO 25010
Quality Model
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9. DEMATEL
Analysis Method
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10. Result
The direct and indirect
effects of the Quality
Characteristics under user's
perspective.
Quality Characteristics D R D+R D-R
Functional Suitability 14.583 15.573 30.156 -0.990
Reliability 14.143 14.799 28.943 -0.656
Usability 14.301 15.144 29.445 -0.843
Performance efficiency 14.011 13.764 27.775 0.246
Portability 14.072 14.186 28.258 -0.114
Maintainability 14.325 13.282 27.607 1.043
Compatibility 14.512 13.612 28.124 0.900
Security 15.282 14.868 30.150 0.414
AVG 28.807 0
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11. Result
The Causal diagram
under user's perspective.
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12. Result
The direct and indirect effects
of the Quality Characteristics
under developer's
perspective.
Quality Characteristics D R D+R D-R
Functional Suitability 8.926 8.498 17.424 0.428
Reliability 8.810 7.969 16.779 0.841
Usability 8.770 8.346 17.116 0.424
Performance efficiency 8.000 7.799 15.798 0.201
Portability 6.777 8.130 14.907 -1.353
Maintainability 7.424 8.648 16.072 -1.224
Compatibility 7.321 7.553 14.874 -0.233
Security 8.486 7.570 16.055 0.916
AVG 16.128 0
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13. Result
The Causal diagram
under developer's
perspective.
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14. Conclusion
•Functional Suitability, Usability and Reliability are quality
characteristics perceived as important by both the developer
and the user.
•Portability is the only quality characteristic that the user and
the developer commonly agree.
•Both the developer and the user regard Performance efficiency
and Security can affect other quality characteristics
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15. Comments
•Combine ISO/IEC 25010 system/software product
quality architecture to support the use of non-
hierarchical structure software product quality model.
•Analyze the Mobile APP product user quality elements
by case study to verify the completeness of the
proposed research method in this study.
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16. Thanks for Your Listening
Q & A
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