Architects have been successfully (and unsuccessfully) using enterprise architecture (EA) frameworks since 1987 when John Zachman published his Zachman Framework. Frameworks typically consist of an iterative ADM (Architecture Development Methodology) and a reusable set of existing architecture assets. There are many benefits that can be realized by implementing an EA framework. They allow large change programs to be approached with rigor and can be used to organize, control, and monitor the performance of third-party system integrators, vendors, and contractors.