Evaluation of Software Testing Techniques Through Software Testability Index

Software testing is one of the most important phases in the Software Development Life Cycle (SDLC) which helps in assessing the quality of the software. There are a number of testing techniques at various phases of testing. Selection of the right testing technique at any stage is one of the critical problems and depends on many factors such as resources, schedule, cost of the project, etc. The appropriate usage of efficient testing technique at various stages of the SDLC is still in infant stage. There is a need for a selection method that not only takes the subjective knowledge but also incorporates the objective knowledge for the efficient selection of testing technique as per the requirements. The paper proposed a method to calculate Software Testability Index of software systems which can be used to evaluate the testing techniques. The method formulates the problem as a Multi Criteria Decision Making problem and the solution is based on Technique for Order Preference by Similarity to Ideal Solution(TOPSIS) and Analytic Hierarchy Process(AHP). General Terms : Testing, Unit Testing, Integration Testing, Functional Testing, Control Flow Testing, Data Flow Testing, Software Testability Index and Evaluation Criteria.