A key step in validating a proposed target architecture is to consider what may have been forgotten. What technique does TOGAF recommend to address this issue?

Business Transformation Readiness Assessment evaluates an organization's preparedness for change, not specifically forgotten architectural components.

Business Value Assessment Technique focuses on evaluating the financial and non-financial benefits of architectural solutions, not forgotten items.

Capability-Based Planning focuses on planning and evolving business capabilities, not specifically identifying overlooked architectural elements during validation.

Communications and Stakeholder Management focuses on managing information flow and stakeholder expectations, not a technique for architecture validation.

Gap Analysis is a fundamental TOGAF technique used to compare a baseline architecture with a target architecture, systematically identifying differences, omissions, and requirements that have not been addressed. This process directly helps in uncovering what might have been forgotten or overlooked.