ISO Vs CMM

Similarities

• Both are TQM based


• Both talk about Continuous improvement (CMM stresses more on this)


• Both stress on “ Say what you do. Do what you say”

Differences

Sl.No	ISO	CMM
1	ISO is a generic standard. It is applicable for all industries.	CMM is S/W specific
2	ISO is a standard. It tells what needs to be done, in an organization.	CMM is a model. It doesn’t mandate the practices
3	ISO focuses on the entire organization’s processes	CMM is specific to S/W processes
4	ISO Certification is followed by Surveillance audit once in 6 months	After CMM assessment, there are no such checks. It is upto the organization to use it for internal process improvements
5	ISO is continuous	CMM is staged (It has different levels of process maturity)
6	Internal Audits are mandatory	Not mandatory