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A Study of Requirements Elicitation and Specification for Context-Aware Systems  

Choi, Jong-Myung (목포대학교 컴퓨터공학)
Publication Information
Journal of KIISE:Computer Systems and Theory / v.35, no.8, 2008 , pp. 394-406 More about this Journal
Abstract
Even though context is the most important feature in context-aware systems, the existing requirements engineering cannot support methodology for elicitation and specification of contexts. In this paper, we propose a requirements elicitation method and a requirements specification method for context-aware systems. Our requirements elicitation method is a 6-stepped, incremental, and iterative process. At the beginning steps in the process, we identify the requirements for business logic. Afterwards, we gather the requirements for context logic, model contexts, and identify subsystems. For requirements specification, we suggest a context-aware use case diagram, a context diagram for context modeling, and a context-type-use-case-dependency diagram for the traceability of use cases on the change of context types. We also introduce a case study that we apply our approaches to a real system, and a qualitative evaluation of our approaches. Our study will help stakeholders to efficiently elicit requirements for context-aware systems and to specify them clearly.
Keywords
Context-aware System; Requirements Elicitation; Requirements Specification;
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