A Network Path is a sequence of activities connected by logical relationships within a project schedule network diagram. Each path represents a chain of dependent tasks that must be executed in a specific order, based on defined constraints such as finish-to-start or start-to-start dependencies. The longest of these paths determines the critical path, which directly impacts the project’s finish date.
Purpose and Characteristics
- Defines Activity Flow – Shows how work progresses from one activity to the next.
- Built on Dependencies – Includes logical relationships like FS, SS, FF, and SF.
- May Contain Float – Paths not on the critical path have float and are less time-sensitive.
- Used for Path Analysis – Helps identify critical, near-critical, and non-critical paths.
Example Scenario
A network path in a product launch project may include:
- Develop prototype → Test prototype → Revise design → Finalize product
If these activities are tightly sequenced, any delay in one affects the rest, making this a candidate for the critical or near-critical path.
Mermaid Diagram: Sample Network Path with Dependencies
flowchart LR A[Develop Prototype] --> B[Test Prototype] B --> C[Revise Design] C --> D[Finalize Product]
This diagram represents a linear network path—each task depends on the previous one, forming a continuous chain of execution.
Why Network Paths Matter
- Enable Critical Path Analysis – Help determine which paths control project duration.
- Guide Scheduling Decisions – Clarify where float exists and where risks are concentrated.
- Support Scenario Planning – Allow visualization of the impact of changes or delays.
See also: Network Logic, Critical Path, Early Start Date, Late Start Date, Total Float.