Securing user access to a parameter value across a software product line differently for different products

A computer is programmed to receive from an administrator, a rule specifying one or more values of a parameter, identification of software wherein the rule is to be applied, and identification of a user on whom the rule is to be applied. The computer stores an association between the rule, the identified user and the identified software. On receipt of input from the identified user, to access the identified software, the computer uses the association to retrieve the rule, apply the rule to select information based on the value(s) specified in the rule, and execute the identified software to display the selected information to the identified user. Use of a rule that is specific to the user and also specific to the software enables the computer to support security for each user differently for different pieces of software in a software product line.