1. Adopting and Evaluating Service Oriented Architecture in Industry
Research:
Vid Juvan
Course:
Method Engineering
Mentor:
Sjaak Brinkkemper
Authors:
Khalid Adam Nasr
Hans-Gerhard Gross
Arie van Deursen
Utrecht University
2012/2013

2. Overview Authors: Khalid Adam Nasr Hans-Gerhard Gross Arie van Deursen
Adopting and Evaluating Service Oriented Architecture in Industry
Authors:
Software engineers, research group, University of Technology, Delft, The Netherlands.
Realizing Service Migration in Industry - Lessons Learned
Performance Trade-offs in Client-Side Service Delegation
Khalid Adam Nasr
Logica, Amstelveen, The Netherlands
Hans-Gerhard Gross
Automated Fault Diagnosis for Service-Oriented Architectures
Arie van Deursen
Co-founder, with Felienne Hermans and Martin Pinzger, of Infotron, a spin-off company specializing in spreadsheets

3. Overview SOA: Service Oriented Arhitecture
architectural style where systems consist of service users and service providers
Services - discrete software modules, collectively provide the complete functionality of a large or complex software application
-Certain functionality implemented as a service.
-Service bulit once, shared and used as many times.
-Called, when needed.
Guiding principle: applications, when practicle, should reach across the network and call upon the capabilities of services, rather then programers creating those capabilities again and again for every appication that needs them.

4. Overview SOA advantages: Service Example: SOA disadvantages:
Service Oriented Arhitecture
SOA advantages:
Code reuse
Single point of control
Business agility
Loose coupling
Standard protocols, interfaces
Service Example:
internet sales company
various purchasing processes
step for creating an electronic purchase order
Instead of programing a purchase order routine into every purchasing application, it can be implemented once as a service and shared
SOA disadvantages:
Ownership of a service
Fragile, expensive adoption process

5. Overview Purpose: Main Phases:
Adopting and Evaluating Service Oriented Architecture in Industry
Main Phases:
IT landscape investigation
Setting up ‚Enterprise Service Bus‘
Test Project
Proof of Concept
Setting up ‚Integration Center of Competence‘
Service Integration Process
Purpose:
Its advantages
Improve company structure
Improve efficiency
Improve agility
Decrese costs

6. Positioning the topic Related Literature:
Adopting and Evaluating Service Oriented Architecture in Industry
Related Literature:
SOA:
SOA based on idea of Distributed Object Architecture (Jurič et al., 2000)
Different organizations have studied the process of migrating to SOA. One of most active companies in this field is IBM.
Channabasavaiah et al.(2004) - ensure a safe transition to SOA
Technique: “Service Oriented Modeling and Architecture” (SOMA), used for defining and implementing service-based solutions in IT (Arsanjani et al., 2008)

7. Process Deliverable Diagram
Adopting and Evaluating Service Oriented Architecture in Industry

8. Process Deliverable Diagram
Adopting and Evaluating Service Oriented Architecture in Industry
IT landscape investigation:

9. Process Deliverable Diagram
Adopting and Evaluating Service Oriented Architecture in Industry
Setting up ‚Enterprise Service Bus‘:

10. Process Deliverable Diagram
Adopting and Evaluating Service Oriented Architecture in Industry
Test Project:

11. Process Deliverable Diagram
Adopting and Evaluating Service Oriented Architecture in Industry
Test Project Example:
Scenario 1:
service user sends an office location name and receives a report back on the latest business news for this specific location
Logica‘s customer – transport section:
landscape very complex and diverse
judged it wise to first start with a Proof-of-Concept (PoC)
actively involve the different business units in the process from the start
possible to explore their different motivations, possible organizational and personal inhibitors
Creating as much ownership as possible
portal solution
Scenario 2:
buy a ticket for a journey
consults Logica’s online timetable for his preferred date, time and means of travel
various payment methods
preferred way of receiving the ticket

12. Process Deliverable Diagram
Adopting and Evaluating Service Oriented Architecture in Industry
Setting up ‚Integration Center of Competence‘:

13. Process Deliverable Diagram
Adopting and Evaluating Service Oriented Architecture in Industry
Service Integration Process:

14. Process Deliverable Diagram
Adopting and Evaluating Service Oriented Architecture in Industry
Service Integration Process:
Work process Methodology of how to specify, determen and implement a new service

15. Process Deliverable Diagram
Adopting and Evaluating Service Oriented Architecture in Industry
SOA adoption process:

16. Thank You for your attention Questions?