In CPM scheduling, what does 'crashing' a project schedule mean?
Correct Answer
A) Reducing project duration by adding resources to critical path activities
Crashing involves shortening the project duration by adding resources (labor, equipment, overtime) to critical path activities, typically at increased cost. This is a deliberate schedule compression technique.
Why This Is the Correct Answer
Crashing is a specific schedule compression technique in Critical Path Method (CPM) where project duration is deliberately shortened by adding resources to critical path activities. This typically involves adding more workers, equipment, or authorizing overtime work to complete critical activities faster. The trade-off is increased project costs in exchange for reduced project duration. This technique focuses specifically on critical path activities because only these activities can actually reduce overall project duration.
Why the Other Options Are Wrong
Option C: Eliminating non-critical activities from the schedule
This option confuses 'crashing' with project failure. In CPM terminology, crashing is a planned, strategic technique for schedule compression, not an indication of project failure or need to restart.
Option D: The project has failed and must be restarted
This option confuses schedule crashing with software conversion, which has nothing to do with CPM scheduling techniques. Crashing is a project management methodology, not a software function.
Memory Technique
Remember 'CRASH' = Critical path + Resources Added + Shortened duration + Higher cost. The critical path is the only path that matters for reducing project duration.
Reference Hint
Look up 'Schedule Compression Techniques' or 'Critical Path Method' in project management sections of construction management references, typically found in chapters covering project scheduling and time management.
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