Business Process Reengineering (BPR) allows organizations to change their processes in order to improve their activities according to their own objectives. Measurement is needed to evaluate the reengineering process. The Cancer Registry of the Catalan Institute of Oncology (ICO) needs a redesign of some processes. So a systematic review is carried to define the state of the art on the use of metrics in BPR. As a result of the review, the PRiM methodology is selected as the most appropriate for measuring the redesign of the Cancer Registry, which then is modeled using the i* paradigm. Both the “as‐is” model and the “to‐be” model are presented, and metrics are defined to see if the redesign adapts to the expected goals.