Introduction to the DITA Maturity Model
http://dita.xml.org/wiki/introduction-to-the-maturity-model

Doyle, Bob
XML.org
2009

Abstract:

One of DITA’s most attractive features is its support for incremental adoption: you can adopt DITA quickly and easily using a subset of its capabilities, and then add investment over time as your content strategy evolves and expands. However, this incremental continuum has also resulted in confusion, as communities at different stages of adoption claim radically different numbers for cost of migration and return on investment. The DITA Maturity Model addresses this confusion by dividing DITA adoption into six levels, each with its own required investment and associated return on investment. You can assess your own capabilities and goals relative to the model and choose the appropriate initial adoption level for your needs and schedule.