Overview: Guide for applying RM-ODP with UML Profile for EDOC

1. Overview: Guide for applying RM-ODP with UML Profile for EDOC From Enterprise Model to Computational Model and + alpha July 24, 2002 INTAP ODP Technical Committee

2. Agenda • Introduction • Overview of using: • RM-ODP Enterprise Viewpoint Language • UML Profile for EDOC – Enterprise Model • UML Profile for EDOC – Information Model • UML Profile for EDOC – Computational Model • Engineering and Technology Model • Summary • Q&A

3. Introduction

4. Introduction • Problems • Objective • Approach • Open Standards used • RM-ODP • UML Profile for EDOC • Introduction of Healthcare joint project

5. Problems • Things which make enterprise system development more complex: • Endless development requests generated to meet a variety of requirements • Requirements for integrating heterogeneous systems and technologies • New requirements like enterprise collaboration and Web Services support pop up unexpectedly • System integration requirements by mergers and acquisitions • Understanding, development, and maintenance of enterprise systems are getting more difficult • Is there any way to better handle or organize this enterprise system development?

6. Objective • We need something for enterprise systems that: • makes it easier to understand • makes it easier to communicate between subject matter experts • Some kind of guideline for users to achieve above is the objective.

7. Approach • “Divide and conquer” is the approach to handle complexity • Utilize usable International Standards and OMG Specifications for this purpose • Develop guideline for using standards about: • How to divide complexity • Sample steps or process of thinking (development) • What should be described in each divided area • What pitfalls are • With examples

8. Standards utilized • RM-ODP (Reference Model for Open Distributed Processing) from ISO/IEC & ITU-T • Viewpoints • Fundamental concepts • UML Profile for EDOC (Enterprise Distributed Object Computing) from OMG • UML extensions based on RM-ODP viewpoint framework • Business process, event, entity, relationship, component, pattern, technology mappings etc.

9. RM-ODP • Reference Model for Open Distributed Processing • ISO Standards & ITU-T Recommendations • Developed initially as reference standards for developing standards for open distributed systems • Better to consider now as vendor neutral distributed system description framework • Being adopted by OMG (OMA, Model Driven Architecture) • Object Oriented • Distinguishing feature: Five Standard Viewpoints defined for any system description

10. Five Viewpoints • Enterprise • Purpose, scope, and policies (not necessarily means “real enterprise”) • Could be considered as requirements specification • Information • Meaning and processing of information • Information model and schema • Computational • Functional decomposition (close to application objects) • Could be considered as object model or component models • Engineering • Infrastructure to enable interaction between computational objects • Could be considered as infrastructure/middleware for distributed processing systems • Technology • Choice of hardware and software, and conformance

11. Information Computational Enterprise Engineering Target Technology Five Viewpoints

12. Five Viewpoints • Viewpoint specification for each viewpoint • For one target system, at most five set of viewpoint specifications will be developed • Those five set of specifications have correspondence among them, because those are the descriptions of the same target system (descriptions just from different viewpoints)

13. Application of viewpoints • Can start with any viewpoint, but it would be enterprise viewpoint if top-down approach for thinking and design is taken. • Can apply at any granularity level • For instance, at the level of: • International industry systems • →National industry systems • →Participating company’s system • →Customer management system within company’s system • →Security systems • →Biomedical authentication system within security system • →… • Therefore it is import to clarify which target you are specifying.

14. Application at various levels International industry consortium systems Participating company’s system Customer management system Within a participating company Refinement

15. Application of viewpoints • What is defined and NOT defined in RM-ODP Viewpoint Language: • Defined • Vocabulary to define viewpoint specifications • Structuring rules • NOT defined • Notation: Could be text or any language or technique like FDT, UML, etc. • Process or methodology: Could be anything. • This is the reason we are working on the guideline

16. What does it look like? • Take an example of basic model for Web Services • Web Services User • Web Services Provider • Web Services Trader　（Registry like UDDI and ebXML’s) Web Services Trader Common diagram used to explain Lookup Register Web Services User Web Services Provider Use

17. What does it look like? • Enterprise Viewpoint Model • Community:Web Services Community- Target domain, Objective • Roles/Objects – Participants in the community • Web Services Trader • Web Services Provider • Web Services User • Web Services Trader Administrator • Web Services Description • Behavior • Web Services export • Web Services import • Policy – Constraints and rules • Web Services Export Policy • Web Services Import Policyetc.

18. What does it look like? • Information Viewpoint Model • Information element examples • Web Services Type • Web Services Description • … • Invariant schema example for Web Services system • Web Services Description is uniquely identifiable • Dynamic schema example • State transition of information elements within Web Services Trader • Static schema example • Initial state for Web Services Trader

19. What does it look like? • Computational Viewpoint Model • Component example Lookup Register Link Proxy Admin Web Services Trader Component Interfaces defined with IDL

20. What does it look like? • Engineering Viewpoint Model • Internet/Web Services Infrastructure • Distributed Object style communication • SOAP/XML • Distributed or federated naming • Various interceptors • security • management • Intra Enterprise CORBA Infrastructure • CORBA Core • CORBA Naming • CORBA Trading

21. What does it look like? • Technology Viewpoint Model RDB Web Services Trader on Unix Firewall Front End Web App Firewall Internet Stand-By App Server Web Server (Windows) Firewall Intra-net TP Monitor Intra-net WSDL Wrapper Client Service Functions （Legacy App） Web Services Provider Web Services User

22. Systems to be built? • If the target is to develop new system: • Five viewpoints applied to entire target system • If the target is to integrate existing systems: • Five viewpoints applied to each of the existing systems (legacy systems) • Try to think of integration at the same granularity level

23. New System Model or Specification Refinements Enterprise View Information View Computational View Engineering View Technology View Divide and conquer with standard five viewpoints System X

24. System Integration Think at the same granularity level refinements Enterprise View Information View Computational View Engineering View Technology View System A System B

25. UML Profile for EDOC • EDOC • Enterprise Distributed Object Computing • RM-ODP applied to enterprise systems • UML • Unified Modeling Language（OMG） • UML Profile • Customized UML for specific domains • UML Profile for EDOC • UML customized for enterprise systems based on RM-ODP framework

26. Added value to RM-ODP • In addition to “divide and conquer,” • Since viewpoint description will be in UML, • More precise description will be possible, • A variety of UML tools become available for model based system developments (e.g. use of stereotype etc.), and • Depending on functions provided by tools: • Skeleton code may be generated from UML models • Fast path to system development with tool-integrated IDE • One realization of OMG MDA

27. Structure of UML Profile for EDOC • Composed of the following sub-profiles • Component Collaboration Architecture (CCA) • Entity Profile • Event Profile • Business Process Profile • Relationship Profile • Pattern Profile

28. Structure of UML Profile for EDOC Enterprise viewpoint (CCA, Processes, Entities, Relationships, Events) Part I: Enterprise Collaboration Architecture (ECA) Information viewpoint Computational viewpoint (Entities, Relationships) (CCA, Entities, Events) Engineering viewpoint Part II: Technology Mappings Part I: Technology Specific Models (Technology abstraction: FCM) Technology viewpoint (UML for J2EE/EJB/JMS, CORBA 3/CCM, COM, SOAP, ebXML) Part I: Pattern can be applied to all viewpoints

29. A Project • A joint project experimentally utilizing RM-ODP and UML Profile for EDOC is underway. • Dealing with Healthcare area • Feedback is expected from participation/experience • The guide is also “work in progress” for revision to reflect the feedback

30. A Sample Process of Viewpoint Specification Development World of RM-ODP World of UML Profile for EDOC Enterprise Enterprise Information Information Computational Computational Focus of our current work Engineering Engineering Technology Technology