todolist # 23 Critical chain project management

While planning (scheduling) it is worth looking at the critical chain project management concepts by Eliyahu M. Goldratt.

In conventional project schedules, buffers are built into activities, resulting in;

• Student syndrome (the task grows to occupy the time available)
• Buffers saved gets unutilized as the resource for the next task is available only after the scheduled duration of the earlier task. Let us say task A is the predecessor to task B and the duration of task A is 5 days with 2 days buffer built into it. Even if task A gets over on the 3rd day, without consuming the buffer of 2 days, the task B can start only on the 6th day, as the resource to execute task B will be available on the 6th day only.

Inorder to avoid these, while scheduling the tasks, they are scheduled without buffers and a buffer of buffers is created towards the end of the path or at the end of the schedule network.

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