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Characteristics of Service-Oriented Architectures

Characteristics of Service-Oriented Architectures. Mark Preston & Ali Owrak Department of Computation, UMIST, September 2004. Overview. Service-Oriented Software Service-Oriented Architectures Characteristics of Service-Oriented Architectures An Evaluation of Service-Oriented Architectures

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Characteristics of Service-Oriented Architectures

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  1. Characteristics of Service-Oriented Architectures Mark Preston & Ali Owrak Department of Computation, UMIST, September 2004

  2. Overview • Service-Oriented Software • Service-Oriented Architectures • Characteristics of Service-Oriented Architectures • An Evaluation of Service-Oriented Architectures • Conclusion and Questions

  3. Service-Oriented Software • New Paradigm for Software Engineering Service Requester Service Agreement Software Components

  4. SAAS SOA AGENTS Service-Oriented Architectures • How do we create Service-Oriented Software? Standards, Methods and Technologies

  5. Service-Oriented Architectures • A definition: "... SOA might be an application architecture within which all functions are defined as independent services with well-defined evocable interfaces“ [Chaanabasavaiah, K, 2004]

  6. Service B Service A Service C Service D Characteristics of Service-Oriented Architectures • Interoperability

  7. Loosely Coupled Service Description Modules A B C D Service Module E Tightly Coupled Service Description Modules A B C D Characteristics of Service-Oriented Architectures • Loose Coupling

  8. Service Requester Service Management Atomic Service Elements Service Interface Service Provider Characteristics of Service-Oriented Architectures • Knowledge Curtain

  9. Execution Monitoring Clean Up Start End Characteristics of Service-Oriented Architectures • Resource Management

  10. Service Discovery Characteristics of Service-Oriented Architectures • Service Discovery

  11. Structurally Independent Service Conceptual Independent Services Characteristics of Service-Oriented Architectures • Structural Independence

  12. Service Market C Service Market D Service Market A Service Market B Binding Process Managed Impacts Application Composition Service Federation Service Orchestration Characteristics of Service-Oriented Architectures • Service Composition

  13. Fine-Grained Coarse-Grained Multi-Grained + Characteristics of Service-Oriented Architectures • Granularity The SOS Market will be composed of:

  14. Service Evaluator Service Requester Candidate Services Characteristics of Service-Oriented Architectures • Service Quality

  15. An Evaluation of Service-Oriented Architectures • Web Services • Semantic Web Services • The Open Grid Services Architecture • Jini

  16. An Evaluation of Service-Oriented Architectures

  17. Conclusion • Identified Characteristics of a SOA • Employed to Evaluate SOAs • Characteristics are not definitive due to the evolution of SOAs

  18. Questions!

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