GRC Access Control 5.3

Hello everyone,

we are in this situation: our customer wants to install SAP GRC Access Control 5.3.

First question: is it possible to install SAP GRC without activate Java Service Program Manager (JSPM)?

Second question: is it possible to use GRC transaction just in SAP or it is needed to the platform NW 7.0 with AS Java? Is it sufficient to have installed Real Time Agent on SAP to work with GRC?

Third question: how could I manage the analysis of the Segregation of duties? There is/are one or more tables which I could customize?

Best regards