Simple Web Services

• Standards: SOAP 1.1 w/Attachments, WSDL, HTTP

• Security: Authentication, trust, authorization

• Simple services use cases:

  • Invoking service through a synchronous call
    • &#-109;RPC&#-108; style semantics; Request/Response thru single channel
    • SOAP 1.1 protocol sufficient ?
  • Invoking service asynchronously
    • semantics provided by messaging services;
    • Loosely coupled, across business boundaries,

• Interoperability issues to be addressed

  • SOAP encodings, transport issues