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Critical Chain Project Management takes a new approach to the challenge of delivering projects on time, within budget and with complete scope. Instead of devising a new mathematical model or a complex estimating system, it seeks to approach it from a different direction … to change the behavior of the project manager and team members. CCPM assumes good project management practices, such as well-defined project plans and solid estimates, are already in place. It is atop this that the behavior components sit.
What are these negative behaviors that project managers are accused of inadvertently encouraging? The behaviors that CCPM purports to correct are:
• Protection of the Estimate
• Management to Due Dates verses Estimated Duration.
• Starting Tasks Earlier than Necessary
• Management of Key Resources (Constraint Management)
• Resource Multitasking.
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Multitasking
Multitasking is defined as assigning one person to working on two or more task simultaneously. This occurs most frequently when resources or specific skill sets are scarce, and in consulting organizations where the utilization of resources is directly related to revenue. Multitasking is considered by CCPM to be one of the most disruptive behaviors to projects, since the time lost by the resource's constant refocusing can be considerable.
CCPM recommends that multitasking be eliminated. For example, instead of having a resource spread 50% between two tasks for two weeks, focus 100% on only one task for the first week and then on the other task for the second.