Enterprise Architecture Inclusion Into IT Management Model

Architecture use within IT (Information Technology) realm is not new. However at present time the scope of architecture, under the term Enterprise architecture (EA) is covering the enterprise as a whole. The aim of the paper is identifying a set of architectural services, which initially fell within the competence of IT management and governance and in accord with the evolutionary stages of EA are transferred into EA team competence. Evolutionary stages of EA are described as well as a concept of EA layered models. The original four-step research model for identification of a set of architectural services (as above) is described, resulting in specification of these services.