SOA Building Blocks WS-Notification

WS-Notification is a family of related white papers and specifications that define a standard Web services approach to notification using a topic-based publish/subscribe pattern.

The Event-driven, or Notification-based, interaction pattern is a commonly used pattern for inter-object communications. Examples exist in many domains, for example in publish/subscribe systems provided by Message Oriented Middleware vendors, or in system and device management domains. This notification pattern is increasingly being used in a Web services context.

WS-Notification is a family of related white papers and specifications that define a standard Web services approach to notification using a topic-based publish/subscribe pattern. It includes:

    * Standard message exchanges to be implemented by service providers that wish to participate in Notifications
    * Standard message exchanges for a notification broker service provider (allowing publication of messages from entities that are not themselves service providers)
    * Operational requirements expected of service providers and requestors that participate in notifications
    * An XML model that describes topics.

There are two forms of notification specs one is for the BaseNotification other for the brokered notification.

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