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,RE- DO,SKIPBACK,and SKIPFORWARD,are...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,RE- DO,SKIPBACK,and SKIPFORWARD,are defined.The double-linked list is used to organize the re- covery 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.展开更多
文摘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,RE- DO,SKIPBACK,and SKIPFORWARD,are defined.The double-linked list is used to organize the re- covery 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.
