This topics lists a set of computing roles that members of your organization might perform, and explains how you can use WS-Notification to help meet the goals of each role.
For a general description of each of the following roles, see WebSphere Application Server roles and goals.
The goal of the enterprise architect might be to guide their organization towards appropriate utilization of these concepts to maximize the efficiency and responsiveness of the business as a whole.
WS-Notification enables publish and subscribe communication patterns (such as a stock ticker) to be exposed by using web services in an SOA environment. This is done through open standards, enabling straightforward replacement of the service implementation. It promotes easy exchange of data between suppliers and customers through use of standard web service operations and prevents vendor lock-in or adoption of proprietary standards.
WebSphere Application Server also allows WS-Notification to be used as an on- or off-ramp to an ESB, providing seamless interchange of data between different types of client connected to the bus.
The main goal of the solution architect is to design a solution that supports the specification set by the enterprise architect. This might include providing an environment in which web service applications can participate in publish and subscribe messaging patterns. This participation might also include the requirement to be able to exchange event notifications between web service clients and other clients of the enterprise service bus.
If the solution architect specifies a requirement to insert event notifications into the system (that is publish messages) or receive event notifications from the system as a result of creating a subscription containing an interest profile, then the application developer can use WS-Notification to meet this requirement.