6. CMMI is not prescriptive.

3. Transitioning from the CMM to the CMMI will be a trivial effort.

Not if you read and understand points 1 and 2 above. There are also more procedures and training to be done, due to the additional process areas included in the model, and more people and groups to get involved. A presentation at the 2002 European SEPG Conference in Amsterdam described one organization's attempt to transition from the Systems Engineering Maturity Model, which they had been using for two to three years , to the CMMI. They described their struggle as "significant."