Abstract: A personnel assignment system is connected to a project management system and a personnel management system The project management system retains information on tasks to which personnel have already been assigned as task data. Task data is associated with identification data of the assigned personnel. The identification data, which is also included in the personnel management system, is used as record retrieval keys. The personnel assignment system automatically extracts related assigned tasks from the identification data when changes occur in the personnel data, and automatically executes reassignment of replacements.

Abstract: The present invention is directed to explaining functions with a rich graphical expression even when the number of kinds of functions required for a software increases. More particularly, a plurality of function areas 201-223 are defined in a composite icon area of the present invention. An appearance image is associated to each function area and, when a mouse pointer comes across a function area, appearance images associated to that function area are displayed as appearance images of a composite icon. A function is also associated to each function area and, when a mouse is clicked on a function area, a function which is associated to that function area is executed. The set of the function area may be changed by changing the size of a composite icon, an operation to switch the group of functions, or selection of an object to be operated upon.