More Web services notifications

We describe Web Service (WS) specifications that define facilities and approaches required to support notification-based and event-driven systems. WS-Notification is actually a family of documents. WS-notification addresses event-driven systems. The WS-base notification document´s main contribution is two-fold; defining the notification-producer interface (supported by applications that accept notification subscriptions and send notification messages) and the notification consumer interface (supported by applications that subscribe to notification messages). WS-notification supports every thing from simple event driven systems to complex enterprise-scale multibroker notification systems. We also discuss Web logging or middleware blogging.