Creating an Active Directory Implementation or Update Plan

Creating or modifying an existing domain and forest plan is the single most important design decision you will make when implementing Active Directory. As such, this isn't a decision you should make alone. When you design Active Directory for an organization of any size, you should get the organization's management involved in the high-level design process.

Involvement doesn't mean letting other groups decide on all aspects of the design. There are many complex components that all have to fit together, and the actual implementation of Active Directory should be the responsibility of the IT group. Involvement means getting feedback from and working with the business managers of other groups to ensure that the high-level design meets their business requirements.