EXPERT RESPONSE
There are many different ways to connect to SAP R/3. Your choice depends
largely on the type of application you are building. If you are looking to
support transparent system to non-SAP system commication, then using the XML
document standards of Business Connector (BC) is the tool for you. BC
allows you to chain together multiple RFC/BAPI calls in what is termed a
pipeline into which you map inbound XML fields using the BC browser.
If you need to provide realtime, client based communication (from a Web
page), then JCo is the right connector for you. JCo is a highly optimized
Java Native Interface (JNI) that provides quick connectivity into the
RFC/BAPI layer.
If you are looking for a more Microsoft-centric solution, check out SAP's
COM/DCOM bridge. As you can tell, there are many approachs for connecting
to R/3. The right one depends largely on your requirements and internal
platform landscape (UNIX, Windows, etc.)
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