In which part of the ADM cycle do the earliest building block definitions start as abstract entities?
In which part of the ADM cycle do the earliest building block definitions start as abstract entities?
In the ADM cycle, the earliest building block definitions start as abstract entities in Phase A. Phase A, known as the 'Architecture Vision' phase, is where high-level models of candidate building blocks are first designed. These initial models exhibit an abstract representation of the capabilities and value envisioned for the architecture, which are then iteratively refined in subsequent phases.
The objectives of Phase A are to: 1) Develop a high-level aspirational vision of the capabilities and business value to be delivered as a result of the proposed Enterprise Architecture. 2) Obtain approval for a Statement of Architecture Work that defines a program of works to develop and deploy the architecture outlined in the Architecture Vision. 33.3.2 Building Block Specification Process in the ADM The process of building block definition takes place gradually as the ADM is followed, mainly in Phases A, B, C, and D. It is an iterative process because as definition proceeds, detailed information about the functionality required, the constraints imposed on the architecture, and the availability of products may affect the choice and the content of building blocks. High-level model of candidate building blocks are designed during Phase A - "Architecture Vision".