Inspeção e testes em um sistema de roteirização de veículos: um estudo de caso

Abstract

During the development of a software the most part of efforts are applied by the programmers to obtain a quality source code. However, quality software depends on several factors related to its implementation, such as development values and costs, good coding practices, organizational processes and effort with defect identification activities. The Information Technology industry is increasingly demanding about the quality of software used in its business, and to achieve this level of excellence, application development must follow techniques such as Verification and Validation (V&V), which enable the identification of software failures, mainly when it is already in production. Acquiring and maintaining these systems generates costs, and an error can cause significant losses to the customer’s business as well as to the service provider. Considering the importance of the system for business, the maintenance process must be continuous and organized, in order to ensure that the corrections do not introduce new errors nor degrade the source code, reducing the maintainability of the software. For this, among the V&V techniques that can be used to mitigate such problems, stand out the inspections and tests, which are static and dynamic verifications of software. Thus, the objective of this work was to evaluate the impact of automated source code inspections through static verification tools as well as dynamic techniques such as unit tests and functional tests. For this, a methodology of case study was adopted, where these techniques were applied to a Vehicle Routing System. As a result, it was possible to develop and use a black-box test tool to validate Vehicle Routing System, to apply and to control by means of metrics the refactorings indicated by the static analysis tools, and also to develop, generate and execute automatically unit tests with tool automated support. In addition, it was possible to develop a process model for applying the techniques, so that they can be used together allowing a better use of its benefits. Finally, as a conclusion of the work, reached the result that the techniques together achieved a significant improvement in the quality of the system, especially with regard to the maintainability of the software.