These days i am trying to find some good posts on project server. Here is one of them. Every project server administratorw wanted to understand the security infrastrcuture of Project server which is a little bit differnt than normal security. Project server has three types of security, User, Groups, Categories.
Another level of security is security templates which are subsets of global security in Project Server. I will not write more but will refernce Tony Zenks post about the security .
Project Server security can be a confusing animal… especially for someone like myself who didn’t have much experience with Microsoft networking and security before working with Project Server. It took me quite a while to "get my head around" the relationship between Groups and Categories in Project Server. I sometimes explain it like this…
Project Server Groups: consist of people / users
Project Server Categories: consist of system permissions that are available