Architecture of Business and IT Enterprise Architecture: an architecture from the Business perspectives

While an Architecture of business organisation includes an Intrinsic Architecture and a Practice of Architecture, the Enterprise and even Business Archtiectures, defined by TOG, are predominantly a practice or implementation of an undefined architecture at the enterprise (rather than an IT) level. From the IT viewpoint, the enterprise is constituted by the corporate-wide technology; from the corporate-wide business viewpoint, technology and its architectural practice (EA) are just types of resources Business Capabilities may utilise to reach the strategic objectives of the business.

Minefield of IT’s Capability Mapping Method

One of the major problems that separate corporate business from corporate technology is not only in the functions they have and represent in the corporate structure but also in the languages these two realms use. Mimicking the term names leads rather to misinformation because the semantics of similarly sounding terms may be basically different.

TOG Open Business Architecture standard is, actually, about IT transformation

Business Architecture”(BA) is not about an architecture of business organisation but about a very specific view that IT departments can take on the business of their own companies, bottom-up. The name of the standard includes “Open” to point to the standard creator – “The Open Group” that locked it to the trusted close Business Architecture Guild for mainly. As usual, this “open business” standard is for IT, not for the business of an enterprise.