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Schedule Compression Technique is a specific way to resolve a schedule overrun or to complete a project faster. Schedule compression is an attempt to shorten the project schedule (or to match the schedule constraints) without changing the project scope, so the project managers utilize it as a corrective action to bring schedule back on track (to prevent foreseen schedule overrun). There are two widely used schedule compression techniques:
- Crashing: this technique implies involvement of additional resources, hence it affects project’s costs. It is based upon an assumption that the project can be accomplished faster when more of workforce and equipment will be engaged into completing its critical tasks, so this technique results into Time/Costs trade-offs;
- Fast tracking: this method stands for rearrangement of tasks in the project plan so some of these tasks, which were initially planned to be in sequence, should be executed in parallel. This can be achieved by overlapping of certain project phases and activities (by starting to execute next tasks or phases before finishing the earlier ones). It is associated with high risks of rework causing extra costs and time;
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