Myths and realities of schedule compression


Compression Technique Myth Reality

Use of overtime

Work will progress at the same rate on overtime.

The rate of progress is less on overtime; more mistakes may occur; and prolonged overtime may lead to burnout.

Adding more resources (i.e., crashing)

The performance rate will increase due to the added resources.

It takes time to find the resources; it takes time to get them up to speed; the resources used for the training must come from the existing resources.

Reducing scope (i.e., needed. Reducing functionality)

The customer always requests more work than actually needed.

The customer needs all of the tasks agreed to in the statement of work.

Outsourcing

Numerous qualified suppliers exist.

The quality of the suppliers’ work can damage your reputation; the supplier may go out of business; and the supplier may have limited concern for your scheduled dates.

Doing series work in parallel

An activity can start before the previous activity has finished.

The risks increase and rework becomes expensive because it may involve multiple activities.

Parallel Realities

Parallel Realities (Photo credit: Wikipedia)

Source: Project Management: A Systems Approach To Planning, Scheduling and Controlling by Harold R. Kerzner.

 

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