Enterprise Architecture : An Introduction
The practice of enterprise architecture (EA) is to support the business decision making process by providng information about complex organizations' structures, their functions, and technology supports requirment for accomplishment of that functions. Considering EA as an IT job only will not be fair because it is far broader than that.It must be considered that, in most cases, increasing complexity in IT drives the need for adopting EA. EA is the model that helps in identification of relationships between the business and technology in such a way that key dependencies are exposed from the underlying complexity and so can be used to support decisions. E.g. by ascertaining which business processes are supported by a given software application, and then which platform the application runs on, it is possible to calculate the impact on the business of hardware obsolescence. From the same model, it would also be possible to examine, the cost of replacing the application, or which process...