Early Estimation of Users’ Perception of Software Quality |
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Authors: | Email author" target="_blank">Dimitris?StavrinoudisEmail author Michalis?Xenos Pavlos?Peppas Dimitris?Christodoulakis |
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Affiliation: | (1) Computer Engineering and Informatics Department, Patras University, Greece;(2) School of Sciences and Technology, Hellenic Open University, Patras, Greece;(3) R.A. Computer Technology Institute, Patras, Greece;(4) Department of Business Administration, Patras University, Greece;(5) Computer Engineering and Informatics Department, Patras University, Greece;(6) R.A. Computer Technology Institute, Patras, Greece |
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Abstract: | This paper presents a methodology for estimating users’ opinion of the quality of a software product. Users’ opinion changes
with time as they progressively become more acquainted with the software product. In this paper, we study the dynamics of
users’ opinion and offer a method for assessing users’ final perception, based on measurements in the early stages of product
release. The paper also presents methods for collecting users’ opinion and from the derived data, shows how their initial
belief state for the quality of the product is formed. It adapts aspects of Belief Revision theory in order to present a way
of estimating users’ opinion, subsequently formed after their opinion revisions. This estimation is achieved by using the
initial measurements and without having to conduct surveys frequently. It reports the correlation that users tend to infer
among quality characteristics and represents this correlation through a determination of a set of constraints between the
scores of each quality characteristic. Finally, this paper presents a fast and automated way of forming users’ new belief
state for the quality of a product after examining their opinion revisions.
Dimitris Stavrinoudis received his degree in Computer Engineering from Patras University and is a Ph.D. student of Computer Engineering and Informatics
Department. He worked as a senior computer engineer and researcher at the R.A. Computer Technology Institute. He has participated
in research and development projects in the areas of software engineering, databases and educational technologies. Currently,
he works at the Hellenic Open University. His research interests include software quality, software metrics and measurements.
Michalis Xenos received his degree and Ph.D. in Computer Engineering from Patras University. He is a Lecturer in the Informatics Department
of the School of Sciences and Technology of the Hellenic Open University. He also works as a researcher in the Computer Technology
Institute of Patras and has participated in over 15 research and development projects in the areas of software engineering
and IT development management. His research interests include, inter alia, Software Engineering and Educational Technologies.
He is the author of 6 books in Greek and over 30 papers in international journals and conferences.
Pavlos Peppas received his B.Eng. in Computer Engineering from Patras University (1988), and his Ph.D. in Computer Science from Sydney
University (1994). He joined Macquarie University, Sydney, as a lecturer in September 1993, and was promoted to a senior lecturer
in October 1998. In January 2000, he took up an appointment at Intrasoft, Athens, where he worked as a senior specialist in
the Data Warehousing department. He joint Athens Information Technology in February 2003 as a senior researcher, and since
November 2003 he is an associate professor at the Dept of Business Administration at the University of Patras. He also holds
an adjunct associate professorship at the School of Computer Science and Engineering at the University of New South Wales.
His research interests lie primarily within the area of Artificial Intelligence, and more specifically in logic-based approaches
to Knowledge Representation and Reasoning with application in robotics, software engineering, organizational knowledge management,
and the semantic web.
Dimitris Christodoulakis received his degree in Mathematics from the University of Athens and his Ph.D. in Informatics from the University of Bonn.
He was a researcher at the National Informatics Centre of Germany. He is a Professor and Vice President of Computer Engineering
and Informatics Department of Patras University. Scientific Coordinator in many research and development projects in the followings
sections: Knowledge and Data Base Systems, Very large volume information storage, Hypertext, Natural Language Technology for
Modern Greek. Author and co-author in many articles published in international conferences. Editor in proceedings of conventions.
Responsible for proofing tools development for Microsoft Corp. He is Vice Director in the Research Academic Computer Technology
Institute (RACTI). |
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Keywords: | software quality measurements users’ opinion quality characteristics ISO9126 belief revision Grove’ s System of Spheres |
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