Abstract
Project is an activity having start and end point (deadline), containing highly uncertainty, and being done by people who create a unique output. The project is a human activity, thus 6 behaviors of human psychology: hidden margin of safety, consumption of all budget and time provided, last-minute work, no report even work is done earlier, multitask and excessive management, are laid behind. Delay factor potentially exists in the project, therefore PMBOK, a project management framework, has been established. However, according to a lot of difficulties to meet the project deadline, 83% of typical IT projects are delayed and 18% of them are stopped. CCPM (Critical Chain Project Management) is applied to a project and its schedule set using a conventional period estimation method (11 months) was shortened by 27.3% (to 8 months). At the same time, 49.9% of vendor resource's overtime hours were decreased compared to it before applying CCPM. CCPM is a project management method developed based on TOC from a viewpoint of total optimization. A "buffer" is placed at the phase-end and collectively managed, instead of removing the margin of safety from each task and shortening the duration of the task. Project manager can understand the whole project progress from consumption of the buffer at the phase-end, not the progress of individual task. Not only the project duration shortening, but also comfortable time and cost reduction are achieved, however these are just secondary effects. In this thesis, it is proved that application of CCPM to IT project is effective, and that the true value of CCPM application is people motivation and growth and, further, it leads to growing organization are discussed.
