I have to make an AOA diagram in which the following situation occurs:
+---+----------------+--------------+
| # | Description | Predecessors |
+---+----------------+--------------+
| C | Welding | B |
| D | Removing slack | C |
| E | Filling tank | C, D |
+---+----------------+--------------+
Since C is a predecessor of both D and E, but E is also dependant on D, can I simplify the diagram to just a sequence of C->D->E ? If not, would the diagram be as following:
Or am I allowed to simplify in this case, so the result is as following:
To me it seems weird both to have a node with just two incoming dummies, but also to just to fully drop a predecessor relationship like nothing happened. Am I missing something?