Tutorial: Virtualization of services
Now that you have completed the design of the POProcessing composite application, you should switch gears and think about how this application will behave once it is deployed in production.
- Does it have dependencies that will change frequently?
- Could these dependencies require modifications and re-deployment, creating a disruption of service to the consumers of the POProcessing application?
If so, we should leverage the Oracle Service Bus to make our composite more resilient to change.
Upon inspection, the credit validation service is a good candidate to decouple from the POProcessing composite. While the interface for the credit validation service is fairly stable, the service provider may be replaced frequently. ...