Functional Analysis with Scenarios
As stated in the chapter introduction, functional analysis is a means to both capture and improve requirements through analysis. In this case, we’ll begin with scenarios as a way to elicit the scenarios from the stakeholder and create the requirements from those identified interactions. We then develop an executable model of the requirements that allows us to verify that the requirements interact how we expect them to, identify missing requirements, and perform “what-if” analyses for additional interactions.
Purpose
The purpose of this recipe is to create a high-quality set of requirements by working with the stakeholders to identify and characterize interactions of the system with its actors. This is particularly effective when the main focus of the use case is the interaction between the actors and the system, or when trying to gather requirements from non-technical stakeholders.
