Using objects to package user interface functionality

This tutorial article concentrates on the uses and effects of object-orientation that are especially applicable to the design and implementation of user interface code. It provides a short review of the effects of the modularity and data-type independence of object-oriented programming with examples taken from user interface implementation problems. It defines the notion of a style of a user interface and suggests that an application framework is an excellent way in which to ensure adherence to such a style by a range of application programs. Some recommendations are given for the future use of these techniques - recommendations primarily for user interface tool suppliers.