Sentence:  A user access profile that contains a number of individual system and information access rights can simplify life for the users (there is only one set of information to remember and therefore fewer written records to comporomise) and for the system administrator (it is easier to control and monitor access rights by an individual and to concentrate on tightening and improving security rather than administering multiple <WSD>sign-ons</WSD>). 
Meaning of the word marked with <WSD> tags:  The username and password for logging in to a computer account.