Definition:
Scheduling techniques used to adjust task timing based on dependencies.
Key Components:
- Lead: The amount of time a successor task can start before its predecessor task finishes.
- Lag: The delay between the completion of a predecessor task and the start of a successor task.
Use Cases/Industries:
- Construction: Overlapping activities like starting electrical work before drywall is complete.
- Energy Sector: Delaying testing after system installation to allow stabilization.
- Manufacturing: Scheduling material procurement ahead of production needs.
Advantages:
- Improves scheduling flexibility.
- Helps optimize project timelines.
- Reduces idle time for resources.
Challenges:
- Poorly managed lead times can cause rework.
- Excessive lag may lead to unnecessary delays.
Related Terms:
Dependencies, Float, Critical Chain
Example:
A lead example is starting painting 2 days before drywall installation is finished. A lag example is waiting 3 days after concrete pouring to allow for curing.
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Synonyms:
Schedule Offset, Task Overlap, Activity Delay
