An Activity is a predecsessor of another activity if the activity begins after the predecessor activity completes and no other activities occur between them.
(Inherited-Facet-Value Minimum-Slot-Cardinality
Epml-Activity
Epml-Activity-Predecessor
0)
(Inherited-Facet-Value Slot-Value-Type
Epml-Activity
Epml-Activity-Predecessor
Epml-Activity)