Download - Critical Chain Long
Critical ChainCritical ChainTheory of Constraints in Project Management
Theory of Constraints in Project Management
FF
CC DD
AA BB EE GG
161 2 3 4 5 6 7 8 9 10 11 12 13 14 15
weeks
17 18 19 20 21
Student Syndrome: “I have sufficient time”
Parkinson’s Law: Work will take all available time
Murphy’s Law: Failure at the first step
Bad multitasking: “I do more in... more time”
Problems in projects
Task 1 Task 2 Task 3
Bad Multi-tasking
Tasks 1 and 2 are delayed
Task 1 Task 2 Task 3
No task was completed on time
Bad Multi-tasking
50% 80%probability
Estimating
50% 80%probability
50%
80%
Estimating
probability50%
80%
Estimating
FF
CC
AA
161 2 3 4 5 6 7 8 9 10 11 12 13 14 15
weeks
17 18 19 20 21
BB EE GG
DD
Project according to estimation
Step 1 – Identify the restriction
AA
161 2 3 4 5 6 7 8 9 10 11 12 13 14 15
săptămâni
17 18 19 20 21
BB EE GG
50%
The project after moving the contingency
Step 2 – Exploit the restriction
AA
161 2 3 4 5 6 7 8 9 10 11 12 13 14 15
weeks
17 18 19 20 21
BB EE GG
25% 25%
The project after cutting the contingency in half
Step 2 – Exploit the restriction
The project with non-critical tasks
AA
161 2 3 4 5 6 7 8 9 10 11 12 13 14 15
săptămâni
17 18 19 20 21
BB EE GG
25% 25%FF
CC DD
Step 3 – Subordinating to the restriction
FF
CC
AA
161 2 3 4 5 6 7 8 9 10 11 12 13 14 15
weeks
17 18 19 20 21
BB EE GG
DD
Feeding-buffer not consumed
FF
CC
AA
161 2 3 4 5 6 7 8 9 10 11 12 13 14 15
weeks
17 18 19 20 21
BB EE GG
DD
Feending buffer consumed
AA
161 2 3 4 5 6 7 8 9 10 11 12 13 14 15
weeks
17 18 19 20 21
BB EE GG
35%
15%
Monitoring the project
AA
161 2 3 4 5 6 7 8 9 10 11 12 13 14 15
weeks
17 18 19 20 21
BB EE GG
35%
60%
Monitoring the project
Good luckGood luck!!