Software companies use development processes along with methodologies or techniques to support the development and improve the quality of their final product. This paper will present the main concepts of the PSP (Personal Software Process) and the BDD (Behavior-Driven Development) with the goal of proposing a strategy of integration between them. At the end, the expected result is to provide a reference material about how BDD can be integrated to the phases of planning and test automation of the PSP, showing how this strategy can be adapted to any software development process. The proposed strategy will be validated through a case study of Android application development.