A network diagram is considered sensitive when there is only one critical path. In project management, the critical path is the sequence of dependent activities that determines the shortest possible duration for the project. If any activity on the critical path is delayed, it will directly impact the project’s overall timeline.
In a network diagram with only one critical path, there is little to no flexibility in the scheduling of activities. Each activity on the critical path is crucial for completing the project on time, and any delay in these activities will extend the project’s duration.
Key characteristics of a network diagram with only one critical path being sensitive include:
- No Total Float or Slack:
- Activities on the critical path typically have zero total float or slack, meaning they cannot be delayed without delaying the project’s completion date.
- Direct Impact on Project Duration:
- Delays in any critical path activity will directly extend the project’s overall duration.
- Close Monitoring and Attention:
- Project managers closely monitor and pay special attention to activities on the critical path to ensure they are completed on schedule.
- Risk Sensitivity:
- The project is more sensitive to unexpected delays, changes, or disruptions, as there is little room for adjusting timelines.
- Strategic Decision-Making:
- Project managers may need to make strategic decisions to allocate additional resources, manage risks, or adjust schedules to protect the critical path.
While having only one critical path simplifies the analysis and management of the project, it also makes the project more vulnerable to delays and changes. Project managers need to be proactive in identifying potential risks, resolving issues promptly, and ensuring that critical path activities are well-executed to meet the project’s objectives within the specified timeframe.
