Perhaps the most arduous task that afflicts project managers involves keeping today’s aggressive project schedules on track. Because resources are continually restricted more and more and the highly skilled, high-priced resources are often required for multiple projects, resource constraints become one of the highest risks to the project schedule. To help ensure that project schedules are met, project managers have learned to concentrate on a project’s critical path. They have also learned that the resources used along the critical path—the critical chain of resources—especially those resources shared among projects, must be proactively managed.

This is where Critical Chain Project Management (CCPM) can aid the project manager—by planning and managing a project’s schedule through a unique optimization process that joins the task-dependent critical path with the critical chain—the resource-dependent tasks that impact the project completion date. The critical chain explicitly defines a resource-leveled set of tasks. If the quantity of resources is unlimited, the critical path and the critical chain are identical.

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