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Notification Broker

  • Notification Broker enables asynchronous communication within WSMX
  • The broker provides following functionality
    • registering and storing user goal-descriptions and related results, and
    • notifying subscribed users of the related results.
  • The broker currently supports the subscription to the goal-based Web Service discovery through a new entry point which fires the execution semantics responsible for
    • checking for the existing (and not expired) user subscriptions,
    • executing for each subscribed goal the discovery process, and
    • once new services have been matched with respect to the previous subscriptions these newly discovered services are notified to the users.
  • The notification can employ two communication channels
    • Email notification, and
    • Web Service invocation.

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