Primavera has evolved a lot in many aspects since Oracle has acquired it. Be it reporting, workflows, integrations or administration, a lot of changes have been introduced. If we talk about client and web administrative functionalities in P6v7 and how they are being governed in 8.2 we’ll notice that a lot has changed with every release.

P6 EPPM Version 7 – In this version administration was primarily governed via the thick client or client as it was generally referred to. The client was the primary module and was used for planner/scheduler functionality, user management and administration. The thin client (or Web as it was generally called) was a secondary module supporting other user functions like Dashboards, Portfolio Analysis etc.
Primavera P6 R8 – This version was very different from what we had seen till version 7.  There was a major shift in how Administration was managed via the Client and the Web. User management and Administration were now managed via the Web (or P6 as it’s called now) in R8. P6 Web became the primary module and following settings were shifted to it ;global dictionaries, administrator setting, and security privileges. In P6 Web, one could do most things that they could do in the desktop client in previous releases. This was accompanied by major performance and scalability improvements in P6 Web to cater to new requirements.
Thick Client (or P6 Professional as it is called in R8) was made an optional feature with an aim to cater exclusively to Planners and Schedulers. Though there were still some functionalities like future bucket planning, check-in/check-out, reflection projects etc. that could be achieved only through client and not web.
P6 EPPM R8 was sold as an Enterprise only version (only EPPM and no PPM). Organizations using Primavera PPM ( Professional Project Management) till version 7 could either continue using the older version or shift to EPPM depending on their requirements. Though these changes were supposed to increase the horizon of P6,it proved otherwise and there was a lot of confusion surrounding the product for some time.
Primavera P6 R8.1 – Similar to version R8, web application (P6) was the primary module and P6 Thick client (P6 Optional client as it is called in this version) did not include any Administration functionality.
The major change in this version was that the database for P6 Web & P6 Professional became separate. P6 Professional (client), which came with P6 PPM did not connect to the P6 EPPM database in R8.1. It could only be installed as a standalone or it could connect to a separate PPM database. EPPM and PPM were two separate products. If you were using P6 EPPM and wanted to use P6 Professional for your offline needs, you would have to use import/export to move projects between the P6 EPPM and P6 Professional databases.
Primavera P6 R8.2 – Version 8.2 is similar to R8 and 8.1, this version has web and client module with web (P6) being the primary module and client or P6 Professional being optional.
For PPM: We have the Primavera Professional similar to version 8.1 with the additional capability to connect to EPPM database.
So in this version P6 Professional can be used in one of two ways:

  • It can be included with P6 EPPM as a desktop client that connects to the P6 EPPM database.
  • It can be licensed as a part of a separate suite (i.e. Primavera Professional Project Management). This suite continues to be a separate product that can work standalone or connect to PPM database.

Besides two separate databases, one can perform all the functions in both the products. When Oracle released v8.0 they alienated the Standalone users in a big way by removing all admin facilities from its tool but 8.2 has restored all the lost functionalities for a standalone user. The Primavera interface has become much better and more user friendly as you can customized it many ways and has better functionalities for Enterprise users. Primavera v8.2 now is definitely the best tool in the market now for both standalone and enterprise users.