IMPLICATION OF THEORY OF CONSTRAINTS IN PROJECT MANAGEMENT

Theory of Constraints (TOC) is new concept of project management. It has been effectively used in the manufacture industry. This study explores the idea of how the TOC is applicable to improve the project performance dealing with time constraint with a case of Sankosh-Tipling Road project and Bhimdhunga-Lamidanda Road Project of Dhading District. The five basic steps of TOC to remove the constraints are identifying the constraint, exploiting the constraint, subordinating to exploitation, elevating the system performance and repeating process. Critical Chain Project Management (CCPM) approach has considered the human behavior factors like Parkinson’s Law and student syndrome while rescheduling the project. Buffer management was introduced with considering the human behavior factors for manipulating the activity duration to aggressive time estimates. Buffer Management uses the time buffers viz. Project Buffer and Feeding Buffers as well as Resource Buffers. These buffers signal the warning of its consumption as the activities are implemented and suggests to critical look at the processes without exceeding the project duration. It was assessed that project could be completed 30 weeks prior to originally proposed deadline with application of CCPM. It might not be very ideal condition and could not be completed 30 weeks prior to deadline but CCPM ensures the project completion within originally proposed deadline with effective management of buffers. Thus, this study has assumed that project could be completed within previously proposed deadline if different counter measures which have been suggested with consideration of TOC.