8.1. Objective

The objective is to use a simplified Foreign Exchange (FX) Spot Rate Quote Service to illustrate how to wrap a remote FX Quote Service using a mixture of XML messaging (XML document using JAXM) and Remote Procedure Call (JAX-RPC) with secure SOAP Message Service (WS-Security) and Security Assertion Markup Language (SAML) protocol for Single Sign-on purpose. How it works is that given a Sell/Buy currency pair (for example, Sell US Dollars and Buy Euro Dollars), the FX Quote Service will provide a quote based on the average daily exchange rate.