Tailoring software processes to particular contexts applying model
transformations has proved to be appropriate and technically feasible. However,
the use of this approach can become awkward for most process engineers, because
it requires knowledge about the process and its tailoring needs, and also about
building model transformations. In a previous work we have proposed a tool
based on model-driven engineering (MDE) for automatically generating software
process model tailoring transformations. This paper presents an improved user
interface of the tool and proposes a process for guiding its application for
tailoring processes. We illustrate its use by applying it for tailoring the
process of Rhiscom, a Chilean small software company. The tool and the process
balance the formally required by MDE with the usability needed by the process
engineers.