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Applying the ISO RM-ODP Standard in e-Government

Applying the ISO RM-ODP Standard in e-Government. B. Meneklis 1 , A. Kaliontzoglou 2,3 , D. Polemi 1 , C. Douligeris 1 1 University of Piraeus, Department of Informatics {bmenekl, dpolemi, cdoulig}@unipi.gr

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Applying the ISO RM-ODP Standard in e-Government

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  1. Applying the ISO RM-ODP Standard in e-Government B. Meneklis1, A. Kaliontzoglou2,3, D. Polemi1, C. Douligeris1 1 University of Piraeus, Department of Informatics {bmenekl, dpolemi, cdoulig}@unipi.gr 2National Technical University of Athens, School of Electrical & Computer Engineering akalion@softlab.ntua.gr 3Expertnet S.A.

  2. Topics • The e-Government Context • ODP Systems Design Methodologies • Overview of the RM-ODP Standard • Architectural Requirements of e-Government Systems • Suitability of RM-ODP for e-Government • Example: The eMayor Case Study • Conclusions

  3. The e-Government Context • Development of e-government services • Web site hosting, limited online transactions • Secure transactions, interactive service delivery, cross-border interactions • Efficient and secure electronic exchange and processing of data • Geographical dispersion leads to distributed system architectures

  4. ODP Systems Design Methodologies • Design standards • OMG/CORBA • OSF/DCE • ISO/RM-ODP

  5. Overview of the RM-ODP Standard • Supports distribution, interworking and portability • Defines basic concepts of distributed processing • Identifies the characteristics that qualify a system as an ODP system • Introduces five viewpoints in order to specify an ODP system • Provides a viewpoint language to describe each viewpoint • Provides distribution transparencies between system applications

  6. RM-ODP Viewpoint Specifications • Enterprise viewpoint – Policies, purpose of operation and scope of the system • Information viewpoint – Information entities communicated, stored and processed in the system • Computational viewpoint – How distribution of processing is achieved • Engineering viewpoint – Ways of communication between objects and resources needed for this communication • Technology viewpoint – Selected technology of a system

  7. Architectural Requirements of E-Government Systems • Interoperability • Scalability • Security and trust • User-Friendliness and accessibility • Cost considerations • Transparent automated processing • Cross-border characteristics • Limited training • Compatibility with existing infrastructures • Mobility aspects

  8. RM-ODP Features Against E-Government Requirements

  9. Suitability of RM-ODP for E-Government • Openness • Scalability • Interoperability • Cross-border characteristics • Integration • Cost considerations • Compatibility with existing infrastructures

  10. Suitability of RM-ODP for E-Government • Flexibility • Compatibility with existing infrastructures • Mobility aspects • Modularity • Cost considerations • Federation • Interoperability • Cross-border characteristics

  11. Suitability of RM-ODP for E-Government • Manageability • Scalability • Limited training • Quality of Service • User friendliness/Accessibility

  12. Suitability of RM-ODP for E-Government • Security • Security/Trust • Transparency • User friendliness/Accessibility • Transparent automated processing

  13. The eMayor Case Study • Actual application of the standard • E-government platform attuned to the environment of European SMGOs (European municipalities)

  14. eMayor Design • RM-ODP principles and concepts applied in combination with UML notation • Address the various organisational and architectural needs of the municipalities • Examples from three RM-ODP viewpoints (Enterprise, Information and Computational)

  15. eMayor Enterprise Viewpoint • Identified communities • Main stakeholders • Roles assumed defined (e.g. Citizen, Civil Servant, Public Agency) • Business processes in the communities identified • Policies and constraints to processes described • Definition of Enterprise Objects

  16. TTP Sub-Community Enterprise Object • Roles • Regional CAs • Pan-European CA • Pan-European Validation Authority • Registered Users • Relationships between them defined • Processes they follow

  17. eMayor Information Viewpoint • Identification of Information Objects used internally and communicated by the eMayor platforms (Class Diagrams) • Description of state transitions of the various Information Objects (UML StateChart Diagrams)

  18. eMayor Information Objects • E-Document • Request Document • Certification Document • Notification • Log File • Configuration File • Policy

  19. eMayor Computational Viewpoint • Overall architecture of the eMayor system • Functional decomposition of the system into packages which interact at interfaces • Definition of Computational Objects • Depicts mechanisms enabling distribution of processing

  20. eMayor Computational Objects • User Interface • Policy Enforcement • Format Transformation • Content Routing • Service Handling • Legacy Systems Adaptation • Printing • Notification • Persistent Storage

  21. Conclusions • Suitability of RM-ODP standard in the design of ODP systems for e-government • Clear separation of concerns through the viewpoint specifications • RM-ODP applied to the design of an actual system

  22. Thank you!

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