The response

How each gap will be closed — build, hire, contract, or change the plan.

The part

What it is

Building is slow and retains value; hiring is faster and costs more; contracting is fastest and leaves nothing behind. Which is right depends on how long the capability will be needed.

Changing the plan is a legitimate fourth answer that is rarely written down, and it is often the correct one when the gap is large and the deadline is fixed.

The smallest level

The attributes it carries

Each attribute is one of the framework’s shared types. What a date is, and how it is written, is defined once for the whole model — the note here says what it means in this particular place.

Route
Build, hire, contract or re-plan — naming the route is what makes the cost and timescale predictable.
Choice shared type
Estimated cost
Comparable costing is what stops the fastest route being chosen by default.
Money shared type
Owner
A gap with no owner remains a gap through several planning cycles.
Person shared type