Schematic overview of SAP enabling technologies for SSO

I came accross a figure displaying a graphical overview of the diverse paths and approaches for achieving Single Sign-On within SAP. This nicely summarizes at high-level the available approaches as discussed in the SAP/Microsoft Alliance whitepaper on SSO (see posting Studying Single Sign-On approaches for SAP and Microsoft):

Tags: SAP NetWeaver Microsoft SharePoint integration interoperability SSO identity management IDM IAM