In this thesis we explore software development on the context of groupware, specifically on supporting collaborative learning. Groupware development is not a trivial task given that technological and social issues are involved. Considering the technological issues, a huge amount of time is wasted on implementing infrastructure aspects leaving little time for implementation of innovative solutions on collaboration. Considering the social issues, we should take into account that group work is dynamic and that group composition changes over time. So, we developed a software product line for groupware based on the 3C Collaboration Model. The groupware derivation process starts with the formalization of the collaborative learning techniques in collaboration scripts. In order to support this collaboration process we developed the GroupwareBuilder, that reads the collaboration script and derives groupware tailored to the tasks described on the script. We made a functional evaluation and a case study. On the functional evaluation, we aimed on getting a proof of concept for GroupwareBuilder by deriving groupware for supporting the Critical Debate and Buzz Groups collaboration scripts. In order to analyze how GroupwareBuilder derives groupware from other collaborative learning techniques described by different teachers we made a case study. The main contribution of this thesis is an approach that enables the derivation of groupware and the customization of groupware in runtime from collaboration scripts written by the users, and not from a list of software requirements as used in other SPLs approaches.