The Open Group Architecture Framework (TOGAF) Practice Exam

Which technique is used in TOGAF to identify building blocks for re-use?

1. Business scenario

2. Identification, ranking, and selection of building blocks

3. A matrix of building blocks versus application

4. Use-case model

The correct answer is: A matrix of building blocks versus application

The correct answer involves utilizing a matrix that correlates building blocks with applications. This technique, often referred to as the Building Block Repository, helps architects visualize and organize various components needed for enterprise architecture. By presenting building blocks in relation to specific applications, it becomes easier to identify which components can be reused across different parts of the architecture, thus promoting efficiency and consistency. When architects use this method, they can spot overlapping functionalities and capabilities among applications, leading to a more streamlined approach to system design and resource allocation. This visual mapping allows for clearer communication among team members and stakeholders regarding the components that support different business objectives. The other options, while they may contribute to the overall architectural discourse, do not specifically focus on the reuse of building blocks. Business scenarios help define requirements but do not directly identify reusable components. Identifying, ranking, and selecting building blocks is a strategic process, but it lacks the structured visualization aspect essential for straightforward reuse identification. The use-case model primarily describes interactions between users and systems, not the actual building blocks or their potential for reuse. This highlights why the matrix approach is particularly effective in TOGAF for identifying reusable elements within an enterprise architecture framework.