Reusing use case descriptions for requirements specification: towards use case patterns

We present reusable patterns appearing in use case based requirements analysis processes. In the processes, analysts have interviews with and questionnaires for the stakeholders to get information about their problems, and then they compose the requirements specifications that are readable to the stakeholders. We adopt the use case approach to specify the requirements. We abstract the requirements descriptions written in use cases into patterns, so that we can reuse the experience in requirements analysis. From a case study of a simple example problem, we design questionnaire forms and a set of patterns of reusable structured use cases.