Post on 16-Dec-2015
1
The Merits and Pitfalls of Critical Chain Scheduling
Oya I. Tukel, Ph. D.
2
Fundamentals of Critical Chain Scheduling
Critical Chain by Goldratt, 1997
Claimed to be the most important breakthrough in project management since the development of critical path
3
Resources Project Management in the Fast Lane,
Newbold, 1998. Critical Chain Project Management, Leach,
2000. Articles: Cabanis-Brewin, 1999;
Globerson, 2000; Pinto, 1999. Web pages:
www.pdinstitute.comwww.prochain.com
4
Resources
www.focusedperformance.com Book reviews: Elton and Roe, 1998;
McKay and Morton, 1998;
Letters to the editor in Project Management Journal and PM Network
5
Steps in Critical Chain Develop late start schedule using
average task durations Eliminate resource contentions Identify critical chain(s) Insert feeding buffers Insert project buffer
6
An Example
Three paths, nine tasks and six resources
7
Late start schedule
8
Resource Conflicts
Eliminate resource contentions, blue and orange
9
Resolve Contentions
Add two artificial precedence relations
10
Determine Critical Chain
11
Insert Feeding Buffers
12
Insert Project Buffer
13
Buffer Size Cut and Paste Method Root Square Error Method Monte Carlo Simulation Method