What action should be taken when an ABB from the Baseline Architecture is missing in the Target Architecture?

When an Architecture Building Block (ABB) from the Baseline Architecture is missing in the Target Architecture, reviewing each missing ABB is essential. This action allows stakeholders to understand the implications of the absence of the ABB, whether it signifies a strategic shift, a gap in functionality, or if it is an intentional omission.

The review process entails evaluating the necessity of the ABB based on current and future architecture needs. It ensures that all relevant components are considered when transitioning from the Baseline to the Target Architecture, thus supporting informed decision-making and maintaining architecture integrity.

Documenting or ignoring a missing ABB may lead to critical oversights in the architecture. Assuming it has been eliminated without thorough analysis could result in unanticipated consequences, impacting system performance or functionality. By systematically reviewing each missing ABB, organizations can align their architecture with strategic business objectives and functional requirements effectively.