It is important for a company to know if it is able to attend the clients' requests on time and according to their expectations, mainly in competitive markets. A usual activity performed to ensure quality is the test activity. Software testing is been considered so important that organizations can allocate teams exclusively for test activities.

In this context, it is important that test managers know the capacity of their test team. This paper defines a capacity model for test execution teams and presents the use of simulation technique for estimating teams capacities for executing tests in mobile applications. We also report our experiences using this model in an organizational setting.