STEP |
ACTION |
1 |
Use the WBS and activity sequencing to complete the network |
2 |
Decide which activities will be the start and finish activities |
3 |
Link the activities to their predecessors as identified in the activity sequencing |
4 |
All nodes must be entering or exit lines except for the start and finish nodes |
5 |
Ensure that there are no loops |
6 |
Eliminate superfluous lines |
Example: Pool Installation Project
The table below demonstrates the work breakdown structure and activity sequencing for a pool Installation:
ACTIVITY NUMBER |
ACTIVITY/WORK PACKAGE |
DURATION |
PREDECESSOR |
RESOURCES |
1 |
Decide on the pool shape |
1 day |
Start |
Owner |
2 |
Install pump |
3 days |
8 |
1 x electrician |
3 |
Dig hole |
10 days |
1 |
4 x labourer |
4 |
Order pool |
1 day |
1 |
Project Manager |
5 |
Insert pool |
4 days |
3 and 4 |
4 x labourer |
6 |
Test functions |
1 day |
2 and 7 |
Proj. Manager + Owner |
7 |
Lay paving |
4 days |
8 |
2 x pavers |
8 |
Connect water pipes |
2 days |
5 |
1 x plumbers |
Note: For demonstration purposes, the activities have been kept at a high level only. Specific activity can be broken down into numerous sub-tasks.
Below is the Logic Network for the above project: Precedence Diagram – Pool Installation Project