Advantages of Stimulus Response Requirement Specification Techniques for System Testing

摘要

This paper presents the advantages of using a stimulus Response Requirement Specification (SRRS) technique to reduce costs, development time, and errors in the generation of ystem level test cases in comparison to using a Structured Analysis (SA) technique. A SRRS technique describes requirements in terms of externally visible inputs (stimuli), processing, and externally visible ouputs (responses). The SRRS techniques may be viewed as a general category of requirements specification techniques that are based on concepts originating in system test methods. Currently used, popular SRRS techniques include Use Cases and Scenario driven techniques. This paper first reviews a basic process for developing system test cases. An example from a library system is used to illustrate thje first sten of this process with a conventional; SA requirements specification and a SRRS. The use of a SRRS technique to document the requirements specification simplifies the test case generation process by eliminating the first step in the three step process.