Editing Capability Maturity Model (section)

===Precursor===

The first application of a staged maturity model to IT was not by CMU/SEI, but rather by [[Richard L. Nolan]], who, in 1973 published the [[stages of growth model]] for IT organizations.<ref>{{Cite journal | last1 = Nolan | first1 = R. L. | title = Managing the computer resource: A stage hypothesis | doi = 10.1145/362280.362284 | journal = [[Communications of the ACM|Comm. ACM]] | volume = 16 | issue = 7 | pages = 399–405 | date=July 1973 | s2cid = 14053595 | doi-access = free }}</ref>

[[Watts Humphrey]] began developing his process maturity concepts during the later stages of his 27-year career at IBM.<ref>{{Cite web|url=http://resources.sei.cmu.edu/library/asset-view.cfm?assetid=5329|title=People Capability Maturity Model (P-CMM) Version 2.0|website=resources.sei.cmu.edu|date=30 June 2001 |access-date=2017-01-17}}</ref>