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Soa 4 soa evolution

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Vaibhav Khanna

Service Arvhitecture

Software
1 of 9
Service Oriented Architecture: 1 SOA Evolution Prof Neeraj Bhargava Vaibhav Khanna Department of Computer Science School of Engineering and Systems Sciences Maharshi Dayanand Saraswati University Ajmer
What is Service Architecture
3 Tier Vs SOA
SOA is an Evolutionary Step
SOA Evolution: Distributed Communication
Service Architecture Organized by Layers Reasons for Layering 1. Flexible composition. 2. Reuse. 3. Functional standardization in lower levels 4. Customization in higher layers 5. Separation of Concerns. 6. Policies may vary by Layer
SOA Example Layers
Major service types • Basic Services: – Data-centric and logic-centric services – Encapsulate data behavior and data model and ensures data consistency (only on one backend). – Basic services are stateless services with high degree of reusability. – Represent fundamental SOA maturity level and usually are build on top existing legacy API (underlying services) • Composed Services : – expose harmonized access to inconsistent basic services technology (gateways, adapters, façades, and functionality-adding services). – Encapsulate business specific workflows or orchestrated services.
Soa 4 soa evolution

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Soa 4 soa evolution

  • 1. Service Oriented Architecture: 1 SOA Evolution Prof Neeraj Bhargava Vaibhav Khanna Department of Computer Science School of Engineering and Systems Sciences Maharshi Dayanand Saraswati University Ajmer
  • 2. What is Service Architecture
  • 3. 3 Tier Vs SOA
  • 4. SOA is an Evolutionary Step
  • 6. Service Architecture Organized by Layers Reasons for Layering 1. Flexible composition. 2. Reuse. 3. Functional standardization in lower levels 4. Customization in higher layers 5. Separation of Concerns. 6. Policies may vary by Layer
  • 8. Major service types • Basic Services: – Data-centric and logic-centric services – Encapsulate data behavior and data model and ensures data consistency (only on one backend). – Basic services are stateless services with high degree of reusability. – Represent fundamental SOA maturity level and usually are build on top existing legacy API (underlying services) • Composed Services : – expose harmonized access to inconsistent basic services technology (gateways, adapters, façades, and functionality-adding services). – Encapsulate business specific workflows or orchestrated services.