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MFI-5: Metamodel for process model registration WANG Chong, HE Keqing, HE Yangfan, WANG Jian

MFI-5: Metamodel for process model registration WANG Chong, HE Keqing, HE Yangfan, WANG Jian State Key Lab. of Software Engineering, Wuhan University, China 2008-05-22. “ Metadata DownUnder” : 11th Open Forum on Metadata Registries Sydney, NSW Australia.

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MFI-5: Metamodel for process model registration WANG Chong, HE Keqing, HE Yangfan, WANG Jian

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  1. MFI-5: Metamodel for process model registration WANG Chong, HE Keqing, HE Yangfan, WANG Jian State Key Lab. of Software Engineering, Wuhan University, China 2008-05-22 “Metadata DownUnder”:11th Open Forum on Metadata Registries Sydney, NSW Australia Sharing and advancing knowledge and experience about standards, technologies and implementations. 

  2. Content • Background • MFI & MFI-5 • Introduction of MFI-5 • Future work

  3. Content • Background • MFI & MFI-5 • Introduction of MFI-5 • Future work

  4. Semantic Service-Oriented Architecture (NLL, OWL(-s), UBL,…) Semantic Web Service Service-Oriented Architecture （XML,SOAP,HTTP, …） Web Service Middleware （CORBA,J2EE…） Messages Component Object Evolution of Software Paradigm (1/2) Granularity of Software Modular Time 1990’s 21 Century 1980’s

  5. Evolution of Software Paradigm (2/2) • Web Services (WS) can be deemed as • Basic modular for software development • Popular form of web-based applications • Specification related to different aspects of WS • Service Oriented Architecture (SOA) • Description languages: OWL-s, WSDL,… • Web Services registry mechanism: UDDI • ……

  6. from Sam Chance, Kobe Open Forum, 2006 A New Focus--Process Web service is a special kind of process model

  7. What is Process • Process is defined as • a set of work items, scheduled according to constraints, which all participate in fulfilling a common purpose. [Breton, 2001] • transformation of input to output. [ISO/IEC 12207] • Structured set of activities involving various enterprises entities, that is designed and organized for a given purpose. [ISO 18629-1, 2004] • one or more activities that occurs over a period of time in which objects participate. [Cutting-Decelle Anne-Francoise, 2005 ]

  8. What is Process Model • Process models are • carriers of process knowledge, concerning how to do things [John, 2006] • the products of process modeling that is described with a certain process modeling language • In general, process models are deemed as a special kind of information model with behavioral features • State transfer • Data exchange • …… include • Web services, business process, workflow, etc.

  9. ? ? ? How to make them work together in a harmonious and effective way? Why we need MFI-5 (1/3) • Business cooperation and web service composition are more and more popular in current practice within/across enterprises. Purpose/Objective Activities Steps/Orchestration Actors & Roles

  10. Personalized Requirements expressedAs Goal achievedBy partOf partOf Process partOf partOf interoperate achievedBy achievedBy Process 1 Process 2 Goal 2 Goal 1 Different expressions, formats and implementation details Why we need MFI-5 (2/3) Registration is the basis of interoperationand further integrationof process models.

  11. Why we need MFI-5 (3/3) • MFI family focuses on the various kinds of information resources • MFI Core provides a very generic framework for various models. • MFI Ontology Registration • provides a facility to register administrative and evolution information of ontologies. • A new part is needed to enable interoperation between process models and support further customized construction based on them. • Problems to be tackled in MFI-5 is to provide a facility to register the administrative information about process models • Structural info • Semantics

  12. Related work • Process modeling/description languages • PSL (Process Specification Language, ISO 18629) • IDEF-3 (Integrated DEFinitaion Methods -3 ) • BPMN (Business Process Modeling Notation) • BPEL4WS (Business Process Execution Language for Web Service) • OWL-S (Web Ontology Language for Services) • Ontology related to Web service • WSMO (Web Service Modeling Ontology) • Extension of WSMF (Web Service Modeling Framework) • Comprising four key elements: Ontology, Goal, Web services, Mediator • SWSO (Semantic Web Service Ontology) • FLOWS (First-order Logic Ontology for Web Services) • OPEN Process Framework (OPF) • Five major metaclasses: Work Products, Producers, Work Units, Stages, Languages [Brian, 2002]

  13. Summary of background • Existent process/process models specifications • Focus on description and expression of process models • Designed for the specific domains • Weakly support for registering semantics or adding semantic annotation • Insufficient to register and manage various kinds of process models for web-based integration applications MFI-5 is a common, scalable and extensible facility to promote interoperability and integration of various process models on the semantic web.

  14. Content • Background • MFI & MFI-5 • Introduction of MFI-5 • Future work

  15. ISO/IEC 19763 (Metamodel Framework for Interoperability) MOF & ISO 11179(MDR) MFI Core Model Metamodel for Ontology Registration Metamodel for Model Mapping Metamodel for ProcessModel Registration Interoperability Exchanging Metamodel Instance UOD-y UOD-x Universal Of Domain

  16. MFI Core & MFI-5 from MFI Core

  17. Content • Background • MFI & MFI-5 • Introduction of MFI-5 • Scope and basic idea of MFI-5 • Models in MFI-5 • Case study • Future work

  18. Scope of MFI-5 (1/3) • Objective • Provide a metamodel to register process models, including business process model, web service and so on. • Focus on the relationship between process model described with different process description languages, especially the composite process consists of sub-processes expressed in different languages. • Promote semantic interoperation between various process models. • Support process integration within/across organizations

  19. MFI Core Scope of MFI Process registration MFI Ontology Registration Scope of MFI-3 MFI Process registration Admin. Info. A Admin. Info. B Ontology registry Process model registry Administrative information of process model A Administrative information of process model B referredTo Process model repository Process model A for application system A Process model B for application system B support Application system B Application system A interoperation Scope of MFI-5 (2/3) Specifications such as PSL

  20. Scope of MFI-5 (3/3) • Points in the scope of MFI-5 • Structural information of process model • Which sub-processes are contained in process model • Which referent participate in fulfilling the common purpose • Semantic constraints of process model • Semantic relation/contradiction between referents • Condition • Mandatory sequence • Precondition and postcondition • …… • Outside the scope of MFI-5 • Language specific details • Implementation level details

  21. Base Model Process Control Model Overview of MFI-5 MFI-5

  22. Base Model (1/2) • Base Model is proposed to register structure information of various process models • Goal: the purpose that should be achieved by fulfilling the process model • Referent: the resources that participate in the process, which can be carried by its Inputs or Outputs • Atomic Process: the process model characterized with the smallest granularity and one-step execution • Composite Process: the complicated process model which is composed of at least two sub-processes.

  23. Base Model (1/2)

  24. Process Control Model (1/3) • Process Control Model is defined to record two kinds of control constraints in process models • Object constraint • Added to Referent • Fromregistration info of ontologies based on MFI-3 • Usage • establish a semantic bridge between different Referents • support input/output matching between different process models • Semantically annotate specified Referent • avoid semantic confliction during process integration

  25. Process Control Model (2/3) • Control constraint • Added to Process • Consists of • The conditions that should be satisfied before or after execution of the process model • The sequence followed by the sub-processes • Specially the conditions carried by control constructs, which are used to connect the sub-processes.

  26. Process Control Model (3/3)

  27. Case Study • Process model registration based on MFI-5 • Case 1: service registration • BravoAir Reservation service from W3C http://www.daml.org/services/owl-s/1.0/examples.html • Case 2: manufacturing process registration • Top level process for manufacturing a GT350* * from Annex C of ISO 18629-12

  28. Case 1: Service registration

  29. Fragment documents of BravoAir (1/2)

  30. Fragment documents of BravoAir (2/2)

  31. Registration Info of BravoAirReservation

  32. Case 2:Manufacturing process registration

  33. Fragment of top level process for manufacturing a GT350* Composite Process …… * from Annex C of ISO 18629-12

  34. based on Process Control Model (Control Constraint) based on Base Model Registration Info of manufacturing GT350 (1/2)

  35. Manufacturing the 350-Engine Fragment of manufacturing sub-process Manufacturing the 350-Block Atomic Process

  36. based on Process Control Model (Control Constraint) based on Base Model Registration Info of manufacturing GT350 (2/2)

  37. Summary of Case Study • MFI-5 can be used to register administrative information of process models described with different languages • OWL-s, PSL, …… • However, considering real interoperation between process models, we need not only • Registration info based on MFI-5 but supplement relevant information, including • Mappings between specified modeling languages • Implementation details • ……

  38. Content • Background • MFI & MFI-5 • Introduction of MFI-5 • Future work

  39. Future work • MFI-5 • Improve two models in detail • Applications • Logistics distribution domain • Urban transportation domain • …… • Collaboration • ebXML • UDDI • ……

  40. Thank You! wangchong_whu@yahoo.com.cn hekeqing@public.wh.hb.cn heyangfan927@hotmail.com wangjian_sd@163.com

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