August 2005
Intermediate to advanced
350 pages
10h 29m
English
Content preview from Essential Business Process Modeling
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BPEL and Patterns
BPEL fares exceptionally well in its support for support for P4 patterns. As rated by P4 members in its paper,[5] BPEL directly supports 13 of the 20 patterns, and it indirectly supports another one. The results of the paper are captured in Table 5-5.
Table 5-5. BPEL support for the P4 patterns
Pattern | Compliance (+, +-, -) | Approach | Notes |
Sequence | + | | |
Parallel Split | + | | |
Synchronization | + | | |
Exclusive Choice | + | | |
Simple Merge | + | | |
Multi-Choice | + | | See P4 paper, p.8f. |
Sync Merge | + | Use dead path elimination to join the results of the multiple choice. | |
Multi Merge | - | No. | |
Discriminator | - | No. | See P4 paper, p.9. |
Arbitrary cycles | - | Only structured loops are allowed. No goto-like constructs. | |
Implicit Termination | + | | |
Multiple Instances (MI) Without Synchronization | + | | |
MI With Design Time Knowledge | + | Run each instance as a separate
activity in a | |
MI With Runtime Knowledge | - | Onerous. | See P4 paper, p. 11. |
MI Without Runtime Knowledge | - | ||
Deferred Choice | + | | |
Interleaved Parallel Routing | +- | Multiple |
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