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Principles of Service-Oriented Architecture

Douwe Pieter van den Bos
Utrecht, February 21st 2012
Introduction




               | Capgemini The Netherlands – Oracle Solutions

                                  © 2011 Capgemini. All rights reserved.   2
What do we need to know to design an
     (Service-Oriented) Architecture?

                        | Capgemini The Netherlands – Oracle Solutions
6 W’s

 Who?
  … benefits from a SOA?
  … is responsible for the SOA?
 What?
  … is a SOA?
  … are Services?
 Where?
  … in the organization do we implement a SOA?
  … in the process …
 When?
  … in time do we implement a SOA?
  … is an organization mature enough for a SOA?
 How?
  … does the technology work?
  … much will it cost?
 Why?
  … do we need to implement the SOA?

                                                   | Capgemini The Netherlands – Oracle Solutions

                                                                      © 2011 Capgemini. All rights reserved.   4
Why do we want
Service-Oriented Architecture?

                | Capgemini The Netherlands – Oracle Solutions
Reducing Costs




                 | Capgemini The Netherlands – Oracle Solutions

                                    © 2011 Capgemini. All rights reserved.   6
Agility




          | Capgemini The Netherlands – Oracle Solutions

                             © 2011 Capgemini. All rights reserved.   7
Increasing Competitive Advantage




                             | Capgemini The Netherlands – Oracle Solutions

                                                © 2011 Capgemini. All rights reserved.   8
Time-to-market




                 | Capgemini The Netherlands – Oracle Solutions

                                    © 2011 Capgemini. All rights reserved.   9
Consolidation




                | Capgemini The Netherlands – Oracle Solutions

                                   © 2011 Capgemini. All rights reserved.   10
Alignment




            | Capgemini The Netherlands – Oracle Solutions

                               © 2011 Capgemini. All rights reserved.   11
What is
Service-Oriented Architecture?
Layers




   © The Open Group          | Capgemini The Netherlands – Oracle Solutions
SOA Reference Architecture
                                                © 2011 Capgemini. All rights reserved.   13
Maturity




© The Open Group     | Capgemini The Netherlands – Oracle Solutions
SOA Maturity Model
                                        © 2011 Capgemini. All rights reserved.   14
What do we need to achieve this?




                             | Capgemini The Netherlands – Oracle Solutions

                                                © 2011 Capgemini. All rights reserved.   15
8 Principles

 Standardized

 Loosely Coupled

 Reusable

 Composable

 Autonomic

 Stateless

 Abstract

 Discoverable

                                   | Capgemini The Netherlands – Oracle Solutions

                                                      © 2011 Capgemini. All rights reserved.   16
Standardized

 Need to operate beyond:
  • Technologies

  • Environments

  • Knowledge

 Ensures:
  • Consistency

  • Reliability

  • Governance


                                           | Capgemini The Netherlands – Oracle Solutions

                                                              © 2011 Capgemini. All rights reserved.   17
Loosely Coupled

 Independent Design & Evolution

 Decouples from Environment

 Interoperability Guaranteed




                                          | Capgemini The Netherlands – Oracle Solutions

                                                             © 2011 Capgemini. All rights reserved.   18
Reusable

 Reuse & Multi-Purpose of:
  • Resources

  • Logic

  • Functionality




                                         | Capgemini The Netherlands – Oracle Solutions

                                                            © 2011 Capgemini. All rights reserved.   19
Composable

 Combine in order to create.

 Break up into smaller parts.

 Less Complexity.

 Supports Growth.



 Compose versus Build



                                         | Capgemini The Netherlands – Oracle Solutions

                                                            © 2011 Capgemini. All rights reserved.   20
Autonomic

 Less (/ No) Dependencies

 Increases Reliability

 Predictable Behavior

 Control over Resources




                                         | Capgemini The Netherlands – Oracle Solutions

                                                            © 2011 Capgemini. All rights reserved.   21
Stateless

 Needed to increase:
  • Scalability

  • Availability




                                    | Capgemini The Netherlands – Oracle Solutions

                                                       © 2011 Capgemini. All rights reserved.   22
Abstract

 “No one needs to know what’s under the hood…”

 Enables “”Loosely Coupled”

 Makes Granularity Possible

 It offers possibilities to grow and mature without consumer
  intervention




                                                   | Capgemini The Netherlands – Oracle Solutions

                                                                      © 2011 Capgemini. All rights reserved.   23
Discoverable

 No Secret

 Easy Identification

 Optimizes Reuse




                                       | Capgemini The Netherlands – Oracle Solutions

                                                          © 2011 Capgemini. All rights reserved.   24
More information



Please contact:
• Douwe Pieter van den Bos
  douwe-pieter.vanden.bos@capgemini.com
  +31 6 203 623 88




                                    | Capgemini The Netherlands – Oracle Solutions

                                                       © 2011 Capgemini. All rights reserved.   25
www.capgemini.com



The information contained in this presentation is proprietary. ©2010 Capgemini. All rights reserved

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Principles of Service-Oriented Architecture

  • 1. Principles of Service-Oriented Architecture Douwe Pieter van den Bos Utrecht, February 21st 2012
  • 2. Introduction | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 2
  • 3. What do we need to know to design an (Service-Oriented) Architecture? | Capgemini The Netherlands – Oracle Solutions
  • 4. 6 W’s  Who?  … benefits from a SOA?  … is responsible for the SOA?  What?  … is a SOA?  … are Services?  Where?  … in the organization do we implement a SOA?  … in the process …  When?  … in time do we implement a SOA?  … is an organization mature enough for a SOA?  How?  … does the technology work?  … much will it cost?  Why?  … do we need to implement the SOA? | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 4
  • 5. Why do we want Service-Oriented Architecture? | Capgemini The Netherlands – Oracle Solutions
  • 6. Reducing Costs | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 6
  • 7. Agility | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 7
  • 8. Increasing Competitive Advantage | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 8
  • 9. Time-to-market | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 9
  • 10. Consolidation | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 10
  • 11. Alignment | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 11
  • 13. Layers © The Open Group | Capgemini The Netherlands – Oracle Solutions SOA Reference Architecture © 2011 Capgemini. All rights reserved. 13
  • 14. Maturity © The Open Group | Capgemini The Netherlands – Oracle Solutions SOA Maturity Model © 2011 Capgemini. All rights reserved. 14
  • 15. What do we need to achieve this? | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 15
  • 16. 8 Principles  Standardized  Loosely Coupled  Reusable  Composable  Autonomic  Stateless  Abstract  Discoverable | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 16
  • 17. Standardized  Need to operate beyond: • Technologies • Environments • Knowledge  Ensures: • Consistency • Reliability • Governance | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 17
  • 18. Loosely Coupled  Independent Design & Evolution  Decouples from Environment  Interoperability Guaranteed | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 18
  • 19. Reusable  Reuse & Multi-Purpose of: • Resources • Logic • Functionality | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 19
  • 20. Composable  Combine in order to create.  Break up into smaller parts.  Less Complexity.  Supports Growth.  Compose versus Build | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 20
  • 21. Autonomic  Less (/ No) Dependencies  Increases Reliability  Predictable Behavior  Control over Resources | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 21
  • 22. Stateless  Needed to increase: • Scalability • Availability | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 22
  • 23. Abstract  “No one needs to know what’s under the hood…”  Enables “”Loosely Coupled”  Makes Granularity Possible  It offers possibilities to grow and mature without consumer intervention | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 23
  • 24. Discoverable  No Secret  Easy Identification  Optimizes Reuse | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 24
  • 25. More information Please contact: • Douwe Pieter van den Bos douwe-pieter.vanden.bos@capgemini.com +31 6 203 623 88 | Capgemini The Netherlands – Oracle Solutions © 2011 Capgemini. All rights reserved. 25
  • 26. www.capgemini.com The information contained in this presentation is proprietary. ©2010 Capgemini. All rights reserved

Editor's Notes

  1. My name is Douwe Pieter van den Bos. I’m the Thoughtleader Oracle Service-Oriented Architecture at Capgemini The Netherlands. Since 2010 I’m an Oracle ACE. I’m a published author at Packt Publishing and have presented at various international conferences, like Oracle OpenWorld.
  2. There are,like in every design, 6 questionsthat we need to askourselves.
  3. This model shows us the service layers as the SOA ReferenceArchitecture, courtesy of The Open Group, desrcibes.
  4. A SOA isn’tachieved withoutstrugle, and notwithin a short amount of time. It’s a model anorganizationneeds to growinto, the complete organizationneeds to mature. The Open Group SOA Maturity Model describeswhere the maturity is found and howitcanbeachieved.The onlyway to “go-SOA” is by “Baby steps”