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Advantages of The Critical Chain Project Management (CCPM)
By Umesh Dwivedi

According to the PMBOK the Critical Chain Method is a schedule network analysis technique that modifies the project schedule to account for limited resources. It mixes deterministic and probabilistic approaches to schedule network analysis. The critical chain concept was coined by Eliyahu Goldratt. This article describes the advantages of applying the Critical Chain Method.

CCPM inherits the advantages of:

  • PMBOK: Planning and control processes.
  • TOC (Theory of Constraints): Remove bottleneck to resolve constraints.
  • Lean: Eliminate waste.
  • Six Sigma: Reduce Variations.

CCPM helps to overcome the following phenomena:

  • Parkinson’s Law: Work expands to fill the available time.
  • Student Syndrome: People start to work in full fledge only when deadline is near.
  • Murphy’s Law: What can go wrong will go wrong.
  • Bad Multi Tasking: Bad multitasking can delay start of the successor tasks.

CCPM is based on:

  • Resource constrained situations.
  • Optimum use of Buffer: Amount of time added to any task to prevent slippage of schedule.
  • Project Buffers (PB): Amount of buffer time at the end of the project.
  • Feeding Buffers (FB): Amount of buffer time at the end of a sequence of tasks.
  • Resource Buffers (RB): It is an alert that is used to indicate that resource is needed to perform a task. This alert can be set few days before a resource is actually needed.

Umesh Dwivedi is certified PMP (Project Management Professional) from PMI, USA. He is experienced in project planning, execution, monitoring and controlling of projects. He has worked in collaboration with cross-functional, cross-organizational teams for many clients internationally.
Visit his home page at

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