Stochastic model for performance evaluation of test planning

One of the challenges the IT industry faces involves maintaining the quality of the developed product within a consistent planning. Product delays are in general consequences of badly conceived planning and lack of progress control. The interest in software testing activities has been growing over the last few years. Software companies currently seek low cost testing procedures and at the same, with great capacity to handle mistakes. In this article, concepts related to testing processes are mapped in Stochastic Petri Nets(SPN) which provides a formal representation for measures used in performance analysis.