DATA PROCESSING SYSTEM

UK9-89-021 DATA PROCESSING SYSTEM A data processing system adapted to register changes in relationship between objects having a display device displaying at least two groups of object representations, a user input device responsive to manipulation by a user to select one or more object representations from at least two of said groups, and control logic registering a change in relationship between objects in response to said selection. The invention provides a user interface for changing the relationships between objects which is simple to use and easy to learn. In one embodiment a list of users is displayed adjacent a list of application programs and as the change to allow a user access to an application program is made by selecting the user from its list, selecting the application program from its list and then selecting the change 'allow access' form a list of possible changes of relationship displayed. The invention is applicable to made different sorts of object and many different types of relationship.