Service registry/Service broker

Question 1

Service Registry tasks

Answer 1

• publish business services
• enable discovery for business services
• collect and manage metadata
• govern use of services

Question 2

Service Broker tasks

Answer 2

• connects services together
• receives input from registry
• mapping

Question 3

Registry contents

Answer 3

• XML as standard
• supported by UDDI
• definition of business process
• policies
• critical information
• governance rules (AUTHN, AUTHZ)

Question 4

Service broker example schema

Answer 4

1. user logs in
2. user requests a ‘Order Processing’
3. broker contacts registry to find out which components are needed
4. Is request allowed?
5. Check if OP, OA, WS and DISP are running (= triggers to start)
6. connect adapters
7. check for additional business rules (based on registry)
8. Rules engine determines how the full business process must be executed (if business rules are ok)