Plan from the supplied facts
Fictional A needs 2 hours and B needs 3, but each requires the same enabler E at 4 hours. E is not yet present and is built once. A release with both features therefore costs 9 hours, not five. An original first-release allowance is six hours.
| Proposed scope | Prerequisites included | Hours | At 6-hour allowance |
|---|---|---|---|
| A alone | E missing | 2 listed, incomplete | Not releasable under model |
| E + A | Yes | 6 | A feasible |
| E + B | Yes | 7 | Over allowance |
Work through the choice
Follow prerequisite edges backwards from a proposed feature and union the required nodes. Shared E is counted once even when both features are selected.
What is the complete cost of releasing A and B together?
Show the worked answer
E+A+B=4+2+3=9 hours, three above six. Counting E twice would incorrectly give 13.
Material to use in your plan
Use selected features, missing prerequisite nodes, shared nodes and unique-node effort total. Keep already-present prerequisites separate from unbuilt ones.