Opening the Community Help Desk on Time

Both staff have nonoverlapping assignments; signs finish at 09:05, and the walkthrough ends at 10:05 normally or 10:10 after backup activation.

Covers every task, both connection outcomes, the sign deadline, water stocking, and the consequence if the backup also fails.

Explicitly reserves time for the joint walkthrough, identifies water as the only droppable task, and refuses to treat a failed connection as ready for opening.

Provides staff-by-staff time blocks, finish times, deadline slack, and a 10:00 latest walkthrough start.

Separate normal, failure, and task-dropping sections make the plan easy to follow, although the extra timing discussion adds length.

Timelines are fully feasible with no overlapping assignments for either staff member, and all deadlines (signs by 09:20, opening by 10:15) are strictly met.

Thoroughly covers normal operation, failure contingencies with backup connection activation, and specific dropping conditions for optional tasks.

Clearly identifies water stocking as optional and outlines precise decision rules for when to drop it based on time buffers.

Provides explicit start and end times for every single task, along with an explicit longest-chain analysis.

Extremely clear layout, easy to follow, with explicit naming of staff members and logical formatting.

Every task respects dependencies and staffing: inspection alone first, tables with both staff, signs done 09:05 before 09:20, registration before test, walkthrough after all mandatory tasks and water, no staff overlap. Normal case ends 10:05, failure case 10:10, both before 10:15. Critical-path math (105 min) is correct.

Covers normal case, failure case, drop decision, confirms all five opening requirements are met, adds earliest-possible-opening analysis, and even addresses what to do if the backup also fails (escalate rather than cut the walkthrough).

Explicitly reasons that tables should precede signs because tables gate three tasks and need both staff while signs have slack; states a precise rule for dropping water (only if it finishes by 10:00 so the walkthrough can start) and stresses that nothing mandatory may be cut.

Precise times for every task and staff member in both scenarios, exact slack figures (10 and 5 minutes), a numeric threshold for the drop decision, and an example of how the opening time changes if water is skipped (as early as 10:00).

Well organized with a summary up front, clear section headings and chronological bullets; the failure case is described as a delta from the normal plan, which is easy to follow.

The timed setup and backup schedules are feasible, but having Staff 2 prepare supplies during inspection is ambiguous under the rule that no other task may start then.

Covers all required tasks and the failed-test backup, but does not address what happens if the backup connection fails as well.

Correctly drops optional water to protect mandatory work, though its instruction to drop it after any unexpected delay is less tailored to the time actually remaining.

Provides time blocks for both staff and both test outcomes, but gives no concrete cutoff for deciding whether delayed water stocking still fits.

The compact chronological schedules and short contingency explanation are easy to scan.

The normal schedule works overall, but has minor logic quirks such as stating connection testing ends at 09:30 and water stocking starts at 09:30 right as the test succeeds, creating slight confusion in timing coordination.

Covers normal and failure cases and identifies the optional task to drop, but lacks the granular depth of resource management found in Answer A.

Correctly identifies water as the optional task to drop, but the explanation is more generic than Answer A's condition-based approach.

Provides timed blocks for the normal case, but the contingency schedule is described in a paragraph block rather than a fully structured breakdown.

Clear and readable, though slightly less structured in the contingency section.

Same schedule structure with roles swapped; all dependencies, the 09:20 sign deadline and the 10:15 deadline are met with no overlaps, and the backup is correctly inserted in the failure case. The remark that Staff 2 'prepares supplies' during inspection is a small wobble against the rule that no other task may start, though it is framed as non-setup activity.

Covers the normal schedule, the failure contingency and the drop decision, but omits any analysis of slack or critical path, does not explicitly confirm each opening requirement is satisfied, and does not consider the backup also failing.

Correctly identifies water as the only optional task and says to drop it under delay, but the trigger is vague ('any unexpected delay') and there is no explanation of why tables were scheduled before signs or how slack is distributed.

Precise times and staff assignments in both scenarios, but the contingency and drop sections are narrative rather than quantified; no numeric threshold for when water becomes infeasible and no stated earliest opening time.

Clean chronological list with staff labels and clear sections; the contingency is readable as a paragraph, though the standby line and 'doors open punctually at 10:15' slightly obscure that the desk is actually ready at 10:05.