Not original content: From Developing Applications with the SAP Java Connector (JCO Tutorial.pdf) by Thomas G Schuessler at : http://www.arasoft.de/
BAPIs and Other RFMs
ABAP Function Modules can only be called from an external client if they are marked as RFC-enabled. R/3 contains several thousands of such RFC-enabled Function Modules (RFMs). Amongst them are the BAPIs. BAPIs [...]
