Recently, I read an article written by Atos Origin. It had to do with Change Management.
Let me try to explain.
Usually, architects design the current and the future state of architecture. Or, in other words, the "as is" state, and the "target" state, as well as the roadmap to move from the current state to the future state. This movement implies change in all views of Process, Organization and Technology, where Technology includes Applications, Databases and Hardware.