This posting describes an approach to PLM implementations when an OOTB approach is not feasible and following this process leads to the characteristics a first rate PLM implementation.  The engagement should be run in an agile manner with frequent deliverables that can be signed-off.  The deliverables start as light-weight easily refined components of a Paper Prototype (PP) and evolve with feedback to a Demo Prototype (DP) and finally to a Conference Room Pilot Prototype (CRP) that shows the total solution.  Each prototype is signed off by the business users.  The purpose of the prototype refinement is to gradually transition the user from a paper-based world into an understanding of a PLM-based solution.