We are in the process of evaluating the integration of SAP R/3 (ESS) with a non-SAP portal (e.g. BEA Weblogic, IBM Websphere).
Can you tell us what are the pros and cons of each integration and the advantages / disadvantages of using SAP NetWeaver? We're currently in SAP R/3 4.6C.
In general, I would recommend simplifying your technology choices by limiting the number of vendors you work with, and considering that SAP has an excellent portal in NetWeaver, I have trouble imagining what would be so pressing to push you in a different direction. I would first re-visit the reasons why you are thinking of a third-party portal and make sure they are valid and defendable.
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