Model-driven engineering (MDE) is a new software development paradigm that intends to improve software construction by raising the abstraction level through the use of models and transformations. Recently, MDE has also been used for automatic change evolution and in particular for tailoring software processes. Even though there are some proposals for automatically generating part of the transformation models, they are not easily applicable in the software industry because the potential users usually do not have the capabilities of developing or maintaining transformations. Proposals trying to address this problem should balance the formality required by MDE and the usability needed by the users. This research applies higher-order transformations (HOTs) and decision models for generating transformations to tailor software process models with no direct user interaction with the code. To that end, a graphical interface was defined with such a purpose, so that transformation rules are interactively defined using a domain specific languaje (DSL), and the tailoring transformation is automatically generated and applied using a domain specific transformation language (DSTL).