Clear Justification of Modelling Decision for Goal-Oriented Requirements Engineering
Download: REJ08 (final draft version). Publisher’s version.
Authors: Ivan J. Jureta, Stephane Faulkner, Pierre-Yves Schobbens.
Publication: Accepted for publication in the Requirements Engineering Journal.
Abstract. Representation and reasoning about goals of an information system unavoidably involve the transformation of unclear stakeholder requirements into an instance of a goal model. If the requirements engineer does not justify why one clear form of requirements is chosen over others, the subsequent modeling decisions cannot be justified either. If arguments for clarification and modeling decisions are instead explicit, justifiably appropriate instances of goal models can be constructed and additional analyses applied to discover richer sets of requirements. The paper proposes the “Goal Argumentation Method (GAM)” to fulfil three roles: (i) GAM guides argumentation and justification of modeling choices during the construction or critique of goal model instances; (ii) it enables the detection of deficient argumentation within goal model instances; and (iii) it provides practical techniques for the engineer to ensure that requirements appearing both in arguments and in model instance elements are clear.
Dynamic Requirements Specification for Adaptable and Open Service Systems
Download: RE07.
Authors: Ivan J. Jureta, Stephane Faulkner, Philippe Thiran.
Publication: 15th IEEE International Conference on Requirements Engineering (RE 2007), New Delhi, India.
Abstract: The Dynamic Requirements Adaptation Method (DRAM) is suggested to assist existing RE methodologies in updating requirements specifications at runtime for adaptable and open service-oriented systems. Updates are needed because an adaptable and open system continually changes how and to what extent initial requirements are achieved.
Clarifying Goal Models
Download: ER07 (short version) or ER07ext (long version). Publisher’s version.
Authors: Ivan J. Jureta, Stephane Faulkner.
Publication: Proceedings of Conceptual Modeling - ER 2007, 26th International Conference on Conceptual Modeling, Auckland, New Zealand.
Abstract. Representation and reasoning about information system (IS) requirements is facilitated with the use of goal models to describe the desired and undesired IS behaviors. One difficulty in goal modeling is arriving at a shared understanding of a goal model instance, mainly due to different backgrounds of the system stakeholders who participate in modeling, and the subsequent disparate use of terminology. Lack of shared understanding, or, in other words, the presence of multiple interpretations entails no guarantee that stakeholders’ expectations expressed in the model instance will be appropriately understood during the subsequent steps of system development. Among the many potential causes of multiple interpretations, this paper focuses on a critical set of such causes, namely: ambiguity, overgenerality, synonymy, and vagueness of information represented in instances of goal modeling primitives. The “Goal Clarification Method” is suggested to guide the identification of unclear information and the subsequent clarification thereof.
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Recently published research
- Essays in Information Management: Contributions to the Modeling and Analysis of Quality in Information Systems Engineering
- Engineering Pluripotent Information Systems
- Towards More Realistic Assumptions about Organizations in Goal-Oriented Requirements Engineering Frameworks
- Clear Justification of Modelling Decision for Goal-Oriented Requirements Engineering
- Dynamic Requirements Specification for Adaptable and Open Service Systems
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Suggested reading
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About Ivan
Ivan Jureta currently does scientific research at the intersection of management science, microeconomics, and information systems engineering. Apart his two MSc degrees, one from the University of Louvain and the other from the London School of Economics, he holds a PhD in economics and management from the University of Namur, where he is with the Department of Business Administration. He lives and works primarily between Belgium and Western Balkans. He is the author or coauthor of some 30 peer-reviewed scientific publications. He lectured about his work at various international conferences and universities, including for instance the University of Trento and Carnegie Mellon University.