Traditional project management concepts have been around for over thirty years. If you look at the impetus for their development in the 1950s, you find that early studies noted that for USA Department of Defence projects, cost and time overruns were often two to three times the initial estimates and that project durations were frequently 40 to 50 percent greater than the original estimates. Similar studies of commercial projects noted cost and duration estimates overran by 70 and 40 percent respectively. Critical Chain-based project management was introduced as a cure for these problems with a goal of delivering projects within the original cost and time estimates. Today, Critical Chain project management is a significant industry.
In 1997, Dr. Eliyahu Goldratt introduced the first significant new approach to project management in over thirty years with the publication of his best selling business novel, Critical Chain. The genius of Goldratt's approach resides in his development of a new paradigm that addresses, for the first time, both the human side and the algorithmic methodology side of project management in a unified discipline.
Based upon Goldratt's break-through unified discipline, Critical Chain project management completes projects in significantly shorter time than traditional Critical Path project management techniques. Importantly, Critical Chain project management is also simpler to use and requires less work for the project team in both the planning and tracking phases of projects.
The Human Side Dr. Goldratt recognized that people plan and execute projects not computer programs. His Critical Chain methodology is based upon great insight into human nature and what happens when a project management discipline is applied to people.