Web Services Reliability (WS-Reliability)

The Web Services Reliability (WS-Reliability) is a generic and open model for ensuring reliable message delivery for Web Services. It defines reliable message delivery as the ability to guarantee message delivery to software applications - Web Services or Web service client applications - with a chosen level of quality of service (QoS). QoS is defined as the ability to determine the following aspects of message delivery:

  • Message persistence 
  • Message acknowledgement and resending 
  • Elimination of duplicate messages 
  • Ordered delivery of messages 
  • Delivery status awareness for sender and receiver applications 

The WS-Reliability specification provides WSDL definitions for reliable messaging and the message formats specified as SOAP headers and/or body content. 

It addresses the dependencies between the capacity of the messaging nodes (persistence, message processing) and the level of QoS that can be provided.

The OASIS Web Services Reliable Messaging (WSRM) Technical Committee is responsible for the specification.

WS-ReliableMessaging became an OASIS standard in 2004.

Also see . Yes, the names are confusing. See a .

Organization:

More information: WSRM page on the OASIS website

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