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Best Practices in Adopting SOA Mike Gilpin VP / Research Director Forrester Research.

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2 Best Practices in Adopting SOA Mike Gilpin VP / Research Director Forrester Research

3 Theme Now is the time to make service oriented architecture practical – to deliver real-world benefits.

4 Agenda How do companies view SOA? How is SOA being used today? How does SOA deliver business value? What are lessons learned from usage of Web Services & SOA? What next for Web Services & SOA?

5 Web services are catching on

6 Priority: Customer Information

7 SOA: A top issue for enterprise architects What topics are you most interested in learning more about? Information architecture: Where do I start? 50% Security architecture: How well is it baked into your enterprise architecture? 50% Enterprise architecture toolsets and capabilities61% Identity management 29% Service-oriented architecture 64% Refresh your enterprise architecture43% Organization of the central federated EA group39% Creating a mission and vision statement and turning it into an actionable plan 32% How to measure and communicate ROI14% Preparing for a new CIO18% Improving the image of IT21% Process and project management 21% Organizational structures and implementing organizational change 21% What’s the next driver of enterprise architecture? 32% Negotiating better contracts 4% Base: 28 IT decision-makers on Forrester’s Enterprise Architecture Council (multiple responses accepted)

8 Forrester advocates SOA Center your architecture on services Design three core values into your SOA platform: »Connections — rich and deep »Configurability for Change — without coding »Control — both IT and business Build a strategic platform, supplement with ecosystem »Evolve your platform with your primary vendors’ »Build out for special needs from platform ecosystems

9 Why SOA? Respond to business change – including regulatory compliance – SOX, HIPAA, etc. Address new needs with existing applications (Composite Applications like order management) Support new channels & complex interactions (Single view of the customer across channels, integrated service/product offerings) Reduce B2B costs relative to proprietary predecessors Support Organic Business – linked ecosystems

10 SOA: The Platform for Organic Business Service consumers Service implementations Service interfaces Service delivery bus Service rules & config- uration Service reporting & mgt. Change Control Connection

11 SOA Stages for ERP Integration of heterogeneous applications across multiple platforms »Time frame: Now Modular components within suites »Time frame: Two to three years Market transformation to standards-based architectures »Time frame: End of decade

12 SOA Stages for Integration Internally focused integration of heterogeneous applications across multiple platforms »Time frame: Since 2003 Externally focused integration »Time frame: Targeted with key partners: Today (often requires special security arrangements) »Time frame: Widespread B2B usage: 3-5 years Market transformation to standards-based architectures »Time frame: End of decade

13 SOA — What it means to you Message-based integration — easier connections using standards »Lowers maintenance and integration costs Modular / pluggable architecture — more flexibility »Assembly of industry-specific and process-oriented solutions (e.g., STP, order-to-cash, …) »Fewer vendor choices but more deployment options Platform ecosystem transformation — large vendors may force major upgrades by end of decade

14 Some Lessons Learned from Early Adopters Web services is only one implementation option Service design should be based on process steps IT organizations must act like ISVs Security and other “ilities” must be built in to SOAs

15 Lesson: Web services is only one SOA option LowHigh Performance/Reliability High CORBA EJB Accessibility Low Web Services IBM MQ Tuxedo Future Web Services Proprietary XML EDI DCOM

16 Services enable composite applications Portals Packaged Apps BPM Lack process automation Hard coded Functional silos Not for collaborative Or ad hoc activity Flexibility Business focus Packaged processes Composite Applications

17 Lesson: Service design = work process step Self-contained units Interactions, not only atomic transactions Process steps, not individual functions Service domains help with organization Business services vs. technical services

18 Lesson: ISV practices are important Service interfaces are products Anticipate needs of users (internal and external) »Testbeds »Sample code »Documentation »Header flags Version management Backward compatibility

19 Service configuration Service consumers Integration server Service interfaces Lesson: The “ilities” must be built in Process flowsGUIsDevicesServicesOther Modeling Orches- tration Rules Creation Registry Service reporting & mgt. IT mgt. Service mgt. SLA mgt. Business mgt. Service delivery bus Routing TransactionsSecurity Transforms Other Legacy Other Application server

20 Filling the gaps Security frameworks: typically require customization to meet more stringent requirements like FS Session management: multiple WS interactions fit into broader sessions needing infrastructure support Version management: complexity of changing versions over time, mapping to multiple customers, requires rich infrastructure support Quality of service management: more advanced SOAs need infrastructure services that ensure higher levels of QoS where required by the customer

21 Recommendations Document and deliver application patterns Keep concepts of SOA and Web services distinct – leverage more than just Web services for SOA Accommodate selected legacies – but wrap services with semantic adaptation, not just pass-through Manage and secure your Web services infrastructure so you can deliver an ISV quality result Establish SOA governance & metadata to ensure teams not working in isolation, S/B creating shared and managed assets

22 Mike Gilpin +1 301/216-0995 Thank you Entire contents © 2004 Forrester Research, Inc. All rights reserved.

23 Upcoming ebizQ Webinars November 18 - Adopting SOA: Best Practices and Lessons Learned November 30 - Reducing Costs & Risk through Total Business Visibility December 2 - Fundamentals of Developing SOA Applications December 7 - Aligning Processes and Implementation with SOA Goals: The Case for Business Process Execution Language (BPEL) December 14 - Optimizing Business Performance with SOA Upcoming Webinars

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