You are right.

E-Procurement = Conventional procurement + Informations tecnologies
or
E-Procurement = Paperless procurement


I think that E-Procurement can be done in outsourcing but not only.

Outsourcing and E-Procurement are not sinonimous.

E-Procurement is the advanced form of conventional procurement.

E-Procurement in outsourcing give the companies more advantages (consolidation of the processes).

Please tell us more about your view.