OG0-091 · Question #83
OG0-091 Question #83: Real Exam Question with Answer & Explanation
The correct answer is C: The specification of a building block should be loosely coupled to its implementation. TOGAF states that a building block's specification should be loosely coupled to its implementation. This is a key design principle: it allows the same specification to be realized by different implementations, promoting flexibility and reuse. Option A is false — functional-leve
Question
Which one of the following statements about TOGAF Building Blocks is true?
Options
- ABuilding blocks at a functional level are known as Solutions Building Blocks
- BSolutions Building Blocks are selected in Phases A, B, C and D
- CThe specification of a building block should be loosely coupled to its implementation
- DThe gap analysis technique should be used to identify building blocks for re-use
Explanation
TOGAF states that a building block's specification should be loosely coupled to its implementation. This is a key design principle: it allows the same specification to be realized by different implementations, promoting flexibility and reuse. Option A is false — functional-level building blocks are Architecture Building Blocks (ABBs), not Solutions Building Blocks (SBBs). Option B is false — SBBs are selected in Phase E (Opportunities and Solutions), not Phases A–D. Option D is false — gap analysis identifies gaps between Baseline and Target Architectures, not specifically building blocks for reuse.
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