Doc/Lit will become the defacto standard for Web Services Services typically support only RPC/Encoded OR Doc/Lit MS .Net defaults to Doc/Lit Doc/Lit is easier for dynamicaly typed langauges Doc/Lit is less supported than RPC/Encoded because it is 'harder' to understand. Literal encoding avoids some (de)serialization overhead PEAR::SOAP defaults to RPC/Encoded, you must set style and use