A framework for command recovery in user interface
A Framework for Command Recovery in User Interface

In this paper, a framework is presented for adding a general command recovery facility to user interface. A simple model of interactive system is discussed and four meta commands, UNDO, REDO, SKIPBACK, and SKIPFORWARD, are defined. The double-linked list is used to organize the recovery information in a natural way for easy implementation. Applications of the framework to various demands of command recoveries show that the use of the framework is very easy and convenient.