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Questioning the Key Techniques Underlying the Iterative and Incremental Approach to Information Systems Development

The iterative and incremental development IID approach is widely adopted in information systems development ISD projects. While the IID approach has played an important role the management of many ISD projects, some of the key techniques have not received critical appraisal from the academic community. This paper aims to fill the gap and examines three such techniques through a case study. First of all, the gap between the theory of user participation and the reality of user's lack of real influence on design and development is explored. The author proposes the concept of "participatory capture" to explain the side effect of user participation. Secondly, the assumption that evolutionary prototyping converges to a successful design is questioned. Thirdly, the side effect of the timeboxing technique is considered. The paper suggests that the IID approach represents the learning approach as categorized in Pich et al. 2002 and it might be ineffective in dealing with the significant uncertainties in ISD projects.