There is a N-N mapping (many to many mapping) between ISO 9001:2000 and CMMI[1]. N-N mappings are usually more reasonable than 1-1 mapping (one to one mapping) especially in comparing standards. But, it is not practical in the field, because when CMMI is implemented in an organization, changes in processes of the organization must be reflected in quality manual as it is a prerequisite in ISO 9001:2000. When reflecting changes in quality manual, N-N mapping may cause some confusion. It is not easy to decide where to place these changes in quality manual by using N-N mapping. A mapping close to 1-1 mapping (Later, we call it “concise N-N mapping”) would, thus, be helpful in decision making.
A simple mapping between standards is not sufficient. This mapping can be complemented by additional descriptions. There are some delicate differences between ISO 9001:2000 and CMMI in terms of context. Therefore, the mapping must be explained by some description on the detailed difference between ISO 9001:2000 and CMMI.