'Rollup tasks not linked' quality metric
Use this metric to check the proportion of summary tasks, expanded tasks and hammocks that have no direct links. It is not good practice to link directly to and from summary tasks, expanded tasks and hammocks; it is preferable to link to and from the tasks that they contain.
Example of summary task with direct links
In the following illustration, Summary 1 has direct links - one from Task 1 to its start and one from its end to Task 4. Summary 2 has no direct links; Task 5 is linked to the start of the first task in the summary group and the last task in the summary group is linked to Task 8. Summary 1 would fail this metric:
You can change the impact that this metric has on the weighted total result of a quality check by entering a factor by which the quality metric should be multiplied in the Weighting field. For the weighting to have any effect, a quality check must have more than one quality metric.
Pass and fail criteria
| Pass or fail? | Criteria |
|---|---|
| Pass |
A project passes this metric if the percentage of summary tasks, expanded tasks and hammocks that have no direct links is greater than or equal to the pass boundary percentage.
For example, if the pass boundary was set to 100.00%, a project would pass this metric if 100.00% of summary tasks, expanded tasks and hammocks had no direct links. |
| Fail |
A project fails this metric if the percentage of summary tasks, expanded tasks and hammocks that have no direct links is less than the fail boundary percentage.
For example, if the fail boundary was set to 100.00%, a project would fail this metric if less than 100.00% of summary tasks, expanded tasks and hammocks had no direct links. |
| Neither pass nor fail | If the percentage of summary tasks, expanded tasks and hammocks that have no direct links falls between the pass and fail boundary, the result is neither a pass nor a fail, but somewhere in between. |
Suggested settings
- Pass boundary: 100.00%. A project will pass this metric if no summary tasks, expanded tasks and hammocks have direct links.
- Fail boundary: 100.00%. A project will fail this metric if any summary tasks, expanded tasks and hammocks have direct links.
The following table shows whether some example projects would pass or fail this metric using these settings:
| Percentage of summary tasks, expanded tasks and hammocks with no direct links | Pass or fail? |
|---|---|
| 0.00% | Fail |
| 50.00% | Fail |
| 99.99% | Fail |
| 100.00% | Pass |
Does the metric force a project to be rescheduled?
No.
Suggested actions if a project fails this metric
If a project fails this metric, select the metric in the Quality Check Results dialog and click Show Failing Tasks to view the tasks that have failed the metric.
You could take the following actions to remedy the failing tasks:
- Move any direct links at the start of each failing task to the start of the first task in the summary group, subchart or hammock.
- Move any direct links at the end of each failing task to the end of the last task in the summary group, subchart or hammock.