without knowing much about it. I once did participate in a project where we connected a SAP system as back-end to a LotusDomino app as frontend.
SAP is german and the leading Enterprise Ressource Planning system of this planet.
It is not written in Java, but in C++.
They have modules for all parts of business of a company. Controlling departments love it. Marketing departments hate it. You get a overview about the
profit, the costs, etc.
In J2EE it is used as a backend system, like a relational database. You can use Webservices or JCA to connect to it. With JCA for me it seems to be about calling the SAP BAPIs (transactional function in SAP-system, like stored procedure in RDBMS). The business logic is inside the BAPIs (written by SAP expert).
They have their own Internet/Java product/tools line which is called mySap.com. They want to support Java and .net and consider Java more stable.
[ November 15, 2002: Message edited by: Axel Janssen ]