Capability Based Models and Service Oriented Architecture [ARC 201]

2. Capability Based Models and Service Oriented Architecture [ARC 201] Boundary disputes, autonomy, and other problems in the nirvana of SOA Ulrich Homann Chief Architect, WW Enterprise Services Microsoft Corporation

3. Big challenges – even after years of SOA practice • Where and how to begin SOA? Can I buy SOA? • How to align services to business needs and priorities? • How to identify, scope and innovate through services? • What about the cloud? • New sourcing model for services • New software architecture model

4. Objectives and suggested takeaways • Session Objective(s): • Drive successful service-oriented projects leveraging investments in business architecture • Demonstrate business relevancy of your services design • Determine services boundaries and completeness • Service-based system delivery requires: • Top-down planning (business alignment) • Bottoms-up execution

5. Today

7. 10 Years Later

8. Durability WHAT DO WE DO? Capability HOW DO WE DO IT? People, Process and IT Abstraction Relative Change Organisational Structures... Process Models... Infrastructure Diagrams... Time Evolution of the Enterprise shaped by Competitive Strategy

9. (Business) Capability • Abstract view of what an individual business function does • Relationships to how (process) the business function is achieved and who (organization) • Properties are used to define the characteristics for both current and future state within the project context • Stable representation that will survive even if the implementation changes • Common naming convention is verb and noun sequence, for example: • Provide Service, Request Resources, Manage Suppliers • Durability: a long time 

11. Develop Products, Services Deliver Products, Services Plan and Manage Enterprise Generate Demand Collaborate Design Product/Service Sales Provide Service Property and Advisory Planning Collaboration Refine Existing Product/Service Marketing Procurement Project Management Strategic Collaboration Develop New Product/Service Channel Management Produce Product Financial Management Operational Collaboration Product/Service Management Customers Business Intelligence Human Resources Logistics Advanced Planning Technology People Process

12. Order Management Sales Management Order Fulfilment Point of Sales Transportation Management Business Architecture decomposes organisation’s operational model into abstract business functions called capabilities; • Capabilities are Abstract, Stable and have Clear Boundaries Product Pricing Inventory Management Prospect Qualification Warehouse Management

13. A real life business architecture

14. Central Management Capability Clusters Changing Enterprise Topology Stable market conditions Focus on cost and efficiency Process-driven Economies of scale Vertical specialization/ hierarchy Changing market conditions Focus on agility and innovation Capability-driven Economies of scope Horizontal specialization

15. Service A service is a business function that is well-defined and self-contained. Service Consumer Service Provider BusinessComponent ServiceFaçade

16. Operational Requirements State Applications enforce manage composed of Policies governed by bound by exchange have Message Exchange Pattern Messages Contracts describe is a set of Schemas define structure of contain Service OrientationKey Concepts (Visual explanation helps) Services

17. Qualify (map) capabilities to services Qualification is the process of mapping capabilities to services that are composed of service components that will provide the implementation of the capability and its associated contracts.

19. Are we talking unholy alliance?

20. Business architecture – relevant concepts

21. Why do you care?

22. Service-Orientation – relevant concepts

24. Lifecycle

25. To CRUD or not to CRUD…

26. Follow the trail

27. Business drivers drawing boundaries

28. Technical drivers driving boundaries

29. Operations drive boundaries

30. Discover the pattern (interface contracts) • Collaborations connect Capabilities • Modularity • Patterns: Negotiation, Offer/Acceptance, … Capability 1.1 Capability 1.1.2 Capability 1.1.1 Collaboration Process Process Process Process Process Process

31. Resources • A Business-Oriented Foundation for Service Orientation • Enterprise Architecture Strategy for SOA/S+S • From capabilities to services: moving from a business architecture to a SOA implementation

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