How is the architecture? What is technically different to EAI or SOA integration servers?
First, it is not an extra EAI server and that makes one main difference. It is an ABAP add-on to the SAP NetWeaver application server, which has got all functions of a full integration server. So it enables direct integrations with SAP without the need of a middleware server or a translating software piece. Next the preferred message format is XML. Another main difference is, that the communication protocol http can be used from end to end (by using the web server functionality of SAP NetWeaver). Most other EAI servers connect to SAP with the SAP’s RFC protocol and therefore need a translation for this. Another difference is, that the communication layer used for integration (http, https, file, ftp, e-Mail) does not imply any difference on the core implementation. The core implementation (BAPI or function module call, Call transaction, Batch Input, SQL statement etc.) is done in ABAP with all SAP workbench features available. No SAP business logic is swapped to middleware or the integr
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