You should clarify some more, but I will take a guess at what you mean, and assume the IS is in the middle… From IS to SAP, you would use the SAP adapter. From IS to website, there are a number of ways-- JDBC and web services among them. SOAP web services is pretty popular these days, but you might also consider RESTful services returning JSON. The latter approach is much more lightweight.
#API-Management#webMethods#soa