In which part of the ADM cycle do building block gaps become associated with work packages that will address the gaps?

The Preliminary Phase sets up the architecture capability, and Phase A develops the architecture vision; neither deals with gap analysis to work package mapping.

Phases B, C, and D focus on developing the baseline and target architectures (Business, Information Systems, Technology) and identifying gaps, but not yet associating them with work packages.

Phase E, Opportunities and Solutions, is the stage where the identified gaps between the baseline and target architectures (from Phases B, C, D) are analyzed. In this phase, candidate solution building blocks are identified, and these are then grouped into logical work packages or projects that will implement the necessary changes to close those gaps.

Phase F: Migration Planning focuses on prioritizing and scheduling the work packages identified in Phase E, not creating the association itself.

Phases G and H deal with implementation governance and architecture change management, respectively, occurring much later in the cycle.