Impact Analysis Framework of Test Cases Based on Changes of Use Case Based Requirements

Software testing activities are an important process in the software testing life cycle. Therefore, test case generation has become one of the essential steps of testing for software to obtain accuracy guarantee and quality of software. However, the changing of requirements often occurs in the development phase, which causes an effect on the software testing. To solve this problem, this paper proposes a framework for impact analysis of test cases based on changes of use case based requirement specification. The proposed approach verifies and validates the difference of requirement specification which is described in use case pattern on two versions of requirement specification document. Consequently, the patterns of the variable requirements changing to be classified and analysed. These results enable the existing test cases completely reused, partly updated as well as additionally generated. In addition, generating new test case completely supports testing coverage and eliminates test case redundancy by using the effective CCTM method.