Evaluating the BPCRAR Method: A Collaborative Method for Business Process Oriented Requirements Acquisition and Refining

The goal of requirements elicitation is to understand the stakeholders’ needs and constraints, and form the system requirements. But gathering requirements correctly, completely and understandably in a natural way is a great challenge to traditional methods, for requirements analysts always play key roles in the elicitation process dominantly while stakeholders participate in passively. Therefore, strategies that help the identification of requirements based on reducing the requirements analysts’ dominance and promoting stake-holders’ self-expression and self-improvement are welcomed. This paper reports a controlled experiment to evaluate the Business Process oriented Collaborative Requirements Acquisition and Refining (BPCRAR) method. Compared to JAD, the statistical results show that the requirements elicited by BPCRAR are more complete and understandable. Besides that, the perceived usefulness, ease to learn, and ease of use of BPCRAR are all confirmed by the statistical data got from the questionnaire to the participants.