Plan from the supplied facts
Fictional components are A,B,C,D. Actual undirected interface links are A–B, B–C and C–D: three. The possible all-pairs count is six, but the other three are not planned. Each actual link is separately estimated at 2 hours.
| Link set | Links | Hours at 2 per link |
|---|---|---|
| Actual A–B,B–C,C–D | 3 | 6 |
| Additional all-pairs A–C,A–D,B–D | 3 | 6 not planned |
| All six pairs | 6 | 12 if actually required |
Work through the choice
Four components do not imply four interfaces or six implemented links. The work unit is a declared interface edge, and direction or separate operations may change that unit.
If A–D is added, what is the revised link estimate?
Show the worked answer
Four actual links ×2=8 hours. It remains below the six-link all-pairs plan.
Material to use in your plan
Use a unique endpoint-pair register for the stated undirected model, then estimate each declared edge. Add direction and operation scope if the actual integration requires them.