Abstract

A quality-driven approach to software development and testing demands that, ultimately, the requirements of stakeholders be validated against the actual behavior of an implementation under test (IUT). In model-based testing, much work has been done on the generation of functional test cases. But few approaches tackle the executability of such test cases. And those that do, offer a solution in which test cases are not directly traceable back to the actual behavior and components of an IUT. Furthermore, extremely few approaches tackle non-functional requirements. Indeed, the User Requirements Notation (URN) is one of few proposals that address the modeling and validation of both functional and non-functional requirements. But if the URN is to support traceability and executability of tests cases with respect to an actual IUT, then the “URN puzzle” must be modified: it must be augmented with a testable model for functional and nonfunctional requirements, an IUT, and explicit bindings between the two. We explain how these three additions are used in our implemented framework in order to support scenario-based validation.

-- Daniel Amyot - 08 Mar 2010

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