For some time now, I have been pondering the question, “Does enterprise architecture introduce anything new which hasn’t already been proposed by modern business management practices?” Some readers might be asking themselves, “What is the relationship between modern business management and enterprise architecture? Where is he going with this?” To begin, I personally make a clear distinction between enterprise architecture and enterprise IT architecture. For me, the former is about “architecting” the whole enterprise in order to achieve performance, coherency and sustainability. The latter is about “architecting” only the IT portion of the enterprise [mostly] under the constraints of the non IT portions. My question is about enterprise architecture and not enterprise IT architecture.