Critical Chain Method (CCM) The Critical Chain Method is an updated form of the Critical Path Method. Here, you consider resource availability while developing the project schedule. In the Critical Chain Method, you use a buffer instead of float. These buffers eliminate the concept of float or slack. Task ID Predecessor 30 Resource Name Estimated Duration (days) Kelly Victor 20 Tony 20 Victor 10 Sophy 30 A B D E A C B;D 30d 20d B 30d Kelly 20d E Vtor 10d Sophy Tony Vitor Exercice a) based on the tasks list table and network diagram, apply the Critical Chain Method to obtain: critical chain and its length (shortest project lead time), and its three buffers: Project Buffer, Feeding Buffer and Resource Buffer