Primavera P6 PPM (Primavera P6 Professional Project Management) is a Windows application, so it needs to run directly on the user’s computer. Given the above, this tool needs to connect to a database on the backend, i.e. it runs from a locally installed database such as Oracle XE or Microsoft SQL Server.
Primavera P6 PPM contains graphics but not interactive as Primavera EPPM does.
On the other hand, Primavera P6 EPPM (Enterprise Project Portfolio Management) is a tool that can be used by everyone involved in the project through a web browser, without the need to install the tool in the local workstation.
Primavera EPPM contains extraordinary and interactive graphics, pivot tables, charts and dashboards.