Situational Method Engineering (SME) was missing its rendezvous with industry mainly because of the complexity of the proposed solutions and the need for advanced method engineering skills to apply them in practice. Today, SME is looking for new ways to facilitate situation-specific method construction. We have developed the notion of method family to attain this goal. Our inspiration comes from Software Product Line Engineering (SPLE), which is developing solutions that can be easily adapted to a specific context and by reusing existing knowledge. In this paper, we introduce the process guiding the construction of method families based on the analysis of the methods variability.