Leveraging workflow control patterns in the domain of clinical practice guidelines

Table 4 Implementation of selected workflow control patterns in the Asbru and PROforma languages

Pattern	Implementable
Pattern	Asbru	PROforma
1. Sequence	+	+
2. Parallel split (AND split)	+	+
3. Synchronization (AND join)	+	+
4. Exclusive choice (XOR split)	+	+
5. Simple merge (XOR join)	+	+
6. Multi-choice (OR split)	+	+
7. Structured synchronizing merge (OR join)	+	+
9. Structured discriminator	+	+
11. Implicit termination	+	+
16. Deferred choice	+	+
17. Interleaved parallel routing	+	-
18. Milestone (deadline)	+/−	+
19. Cancel activity	+	+
20. Cancel case	+	+
21. Structured loop	+	+
23. Transient trigger	-	+
24. Persistent trigger	+/−	+
25. Cancel region	+/−	+
30. Structured partial join	+	+
39. Critical section	+	-
40. Interleaved routing	+	-
43. Explicit termination	+	+

Legend of ‘Implementable’ column: ‘+’ indicates that the pattern is directly implementable; ‘+/−’that it is not directly implementable; and ‘-’that it is not implementable

ISSN: 1472-6947