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Declarative Workflow as Dynamic Condition-Response Structures and the Resultmaker Process Matrix

Declarative Workflow as Dynamic Condition-Response Structures and the Resultmaker Process Matrix. Raghava Rao Mukkamala PhD student, TrustCare Project Supervisor: Thomas Hildebrandt I T University of Copenhagen 2009-12-07. Overview. BPMN Flow Chart – Get Sick example

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Declarative Workflow as Dynamic Condition-Response Structures and the Resultmaker Process Matrix

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  1. Declarative Workflow as Dynamic Condition-Response Structures and the Resultmaker Process Matrix Raghava Rao Mukkamala PhD student, TrustCare Project Supervisor: Thomas Hildebrandt I T University of Copenhagen 2009-12-07

  2. Overview • BPMN Flow Chart – Get Sick example • Imperative verses Declarative • Dynamic Condition Response Structures (DCRS) • BPMN and DCRS comparison • Future work

  3. BPMN Flow chart – Get Sick example • GS, CD, PM, TM, GH • GS, CD, OT, RR, ER , PM, TM, GH • GS, GH • GS, TM, GH • GS, CD, GH

  4. BPMN Flow chart – Get Sick example updated • GS, CD, PM, TM, GH • GS, CD, OT, RR, ER , PM, TM, GH • GS, GH • GS, TM, GH • GS, CD, TM, GH • GS, CD, GH • GS, TM, CD • GS, CD, OT, RR, ER, CD

  5. Imperative verses Declarative • Imperative models (e.g. Flow charts) • Good for Processes with static behaviors and no deviations • Too rigid, impose a strictly pre-defined execution procedure • Specify “How” the process should behave, so over specification • Declarative Models • Specify “What” results a model should produce, instead of “How” • Start with all possible flows, restrict with constraints to get desired behavior • Suitable for rapidly evolving processes and dynamic changes

  6. BPMN Ad Hoc Process • No clear semantics in BPMN specification. • Not implemented by many vendors + Completion condition

  7. Dynamic Condition-Response Structures (DCRS)

  8. Dynamic Condition-Response Structures (DCRS) • GS, GH • GS, TM, GH • GS, CD, [OT, RR ]*, ER , GH • GS, CD, [OT, RR ], GH

  9. BPMN and DCRS comparison Sequence Pattern in BPMN Sequence Pattern in DCRS (using dynamic include/exclude) Sequence Pattern in DCRS (using succession)

  10. BPMN and DCRS comparison Exclusive Choice Pattern in BPMN Exclusive choice Pattern in DCRS

  11. BPMN and DCRS comparison Structured Loop Pattern in BPMN Structured Loop Pattern in DCRS

  12. Future work • Add Roles & Acess rights • Add Time and Data • Add Exception & compensation • Continue modelling workflow patterns • Integrate with Pervasive User Interfaces • Thank You • Questions and Comments

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