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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

Submitted by carter_n· Apr 18, 2026Core Concepts

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.

Topics

#Building Blocks#Architecture Building Blocks (ABBs)#Solutions Building Blocks (SBBs)#Loose Coupling

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