Activity networks: EST, LST, float and the critical path

What this note covers

1. What is an activity network?
2. Building a network from a precedence table
3. Forward pass: calculating the Earliest Start Time (EST)
4. Backward pass: calculating the Latest Start Time (LST)
5. Float time: measuring scheduling flexibility
6. Identifying the critical path and minimum project duration
7. Exam strategy and checking your work

7 sections · 14 key terms & formulas · 6 common mistakes