Browsing by Subject "Information systems"
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Item Building Information Systems Development Methods: Synthesising from a Basis in both Theory and Practice(IEEE, 2002) Fowler, Danielle; Swatman, Paul AnthonyIn this paper, we discuss some methodological issues associated with research into requirements engineering, and describe the benefits afforded to us by using action research to explore issues associated with requirements elicitation, modelling and validation. FOOM is a requirements engineering method which is designed to facilitate the development of high-quality, requirements-conformant information systems. In creating FOOM, an overriding concern has been to ensure both theoretic soundness and practical applicability within the target domain. We discuss in this paper the benefits of using action research as an enquiry mechanism for exploring issues associated with requirements elicitation, modelling and validation, and the way in which it formed a central part of the method's evaluation and evolution.Item Information System Cost Estimating: A Management Perspective(Management Information Systems Research Center, University of Minnesota, 1990) Lederer, Albert L; Mirani, Rajesh; Neo, Boon Siong; Pollard, Carol E; Prasad, Jayesh; Ramamurthy, KInformation systems cost estimating is an important management concern. An estimate helps to cost justify individual proposals, to schedule their development, to staff them, to control and monitor their progress, and to evaluate estimators and implementers. Through a case study of a chemical manufacturer, the investigation reported in this article facilitates a better understanding of the management of the cost estimating process. Interviews with 17 information systems managers and staff members, and four user managers confirm that the practice of cost estimating can be viewed in terms of both a Rational Model and a Political Model, can identify impediments to accurate estimating, and can provide suggestions and warnings for managers and future researchers.