Why WSE?

WSE Executive Summary

Free. Save your investment on in-house development of WS-specifications framework or 3rd part product, such like GetAccess

Current release is guaranteed side-by-side compatible with future releases, thanks .net framwork

Message is end2end secured. This is in contrast to transport protocol or wire level security (e.g. HTTPS, SSL). It can be used for many different protocols such as SMTP, FTP, and TCP

What has been acheive?

Message Integrity

it uses XML Digital Signatures.

Confidentiality

is based on the XML Encryption specification

Authentication

It uses security token that embeds in SOAP header to identify a caller.

For demo and more information read this:Web Services Home: Why WSE?