Scenario-Based Requirement Analysis
Alistair Sutcliffe · 1999
A method for scenario based requirements engineering is described. The method uses two types of scenario, structure models of the system context and scripts of system usage. A modelling language is reported for describing scenarios, and heuristics are given to cross check dependencies between scenario models and the requirements specification. Heuristics are grouped into several analytic treatments that investigate correspondences between users' goals and system functions; input events and system processes to deal with them; system output and its destination in the scenario model, and acceptability analysis of system output for different stakeholders. The method is illustrated with a case study taken from the London Ambulance Service report. The prospects for scenario based RE and related work are discussed. 1. Introduction In spite of the increasing attention that scenarios have attracted in requirements engineering [1], few methods have merged to guide the practice of scenario based...