This document outlines the Protorative methodology for ERP implementations. It begins with background on typical ERP projects and their high failure rates. It then discusses the drawbacks of traditional methods like ASAP that do not allow going back to earlier phases. The Theory of Constraints is introduced as focusing on identifying and exploiting constraints. The Protorative methodology is presented as a prototype + iterative approach that gathers requirements through hands-on prototyping with users. Key assumptions and scheduling are provided, with advantages noted as faster timelines, less testing needs, and better user adoption.