This post originated from an RSS feed registered with .NET Buzz by Christian Weyer. Original Post: First piece in the WSA stack without Big Blue: WS-Eventing Feed Title: Christian Weyer: Web Services & .NET Feed URL: http://www.asp.net/err404.htm?aspxerrorpath=/cweyer/Rss.aspx Feed Description: Philosophizing about and criticizing the brave new world ... Latest .NET Buzz Posts Latest .NET Buzz Posts by Christian Weyer Latest Posts From Christian Weyer: Web Services & .NET

Today Microsoft, BEA, and TIBCO announced the Web Services Eventing (WS-Eventing) specification. Seems this is the first official and public release of an important brick in the Web services stack without IBM.

As you can guess from its name, this specification describes a protocol that allows Web services to subscribe to or accept subscriptions for event notification messages:

Web services often want to receive messages when events occur in other services and applications. A mechanism for registering interest is needed because the set of Web services interested in receiving such messages is often unknown in advance or will change over time. This specification defines a protocol for one Web service (called an "event sink") to register interest (called a "subscription") with another Web service (called an "event source") in receiving messages about events (called "notifications"). To improve robustness, the subscription is leased by an event source to an event sink, and the subscription expires over time. An event source may allow an event sink to renew the subscription.