Principles and Practices of DevOps
www.gartner.com/technology/reprints.do?id=1-2CBV2MS&ct=150326&st=sb
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
Confusion endures about not only what DevOps is, but where to start (and possibly end) with it. In this note, we introduce a model of commonly associated practices to guide organizations with their DevOps journeys.