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There is some confusion about the difference between Primavera P6 Professional Project Management (PPM) and Primavera P6 Enterprise Project Portfolio Management (EPPM).
My objective is to help clarify the issue. To start, below are a few blanket statements that I hear a lot which I have clarified.
Paul E. Harris stated well when he said: “In principle there are 2 types of database which are accessed and administered differently, and 2 tools that may be used to access the databases.
An EPPM database may be accessed using both tools:
A PPM database may be accessed using only:
A single installation of a P6 Windows Client on a personal computer may open either an EPPM or a PPM database. Therefore the term “Optional Client” and “Professional Client” describe the mode the software is being used in, as it is not two different software packages, but the software has different functionality depending on the database being opened.”
So, which one should I buy?
What I normally say is something along the lines of “If you want a tool that your guys (or gals) can use from their PC (or by hitting the server) and you would like for them to have the flexibility to do updates from the field in an area where you may not be able to hit the server, go with EPPM. The $250 difference is worth it to have that flexibility.”
“If you don’t have plans to use AND will NEVER use the web interface, go with PPM.