The Business IT Integration Maturity Model is first introduced in the summer of 2006. It was created to use in a discussion with an IT department to define the level of organizational maturity needed (based on Nolan’s Maturity Model). The BITI Maturity Model defines the needed organizational maturity of the IT department in relation to the view of the Business on the strategic importance of IT. The view of the Business can be seen as a level of maturity for the business itself.
The basic assumption is that the maturity of the IT department should not be greater than the view of the Business on the need for IT. If the Business is looking towards IT as a commodity, then the IT department should have a customer focus (maturity level).