| code | name | description |
|---|---|---|
| 1 | Parent | An activity that contains sub-activities (sub-components) |
| 2 | Child | A sub-activity (sub-component) of a larger activity (the parent) |
| 3 | Sibling | A sub-activity (sub-component) related to another sub-activity of the same parent |
| 4 | Multifunded | A multifunded, or co-funded activity. The identifier should be globally unique and shared by all reporters of this activity. |