PUBLIC MARKS from benoit with tags http & rest

ETags, or entity-tags, are an important part of HTTP, being a critical part of caching, and also used in "conditional" requests. So what is an etag?

The only real difference between traditional SOA and the concept of WOA is that WOA advocates REST, an increasingly popular, powerful, and simple method of leveraging HTTP as a Web service in its own right (and carefully devised by the co-creator of HTTP, Roy Fielding.)