New users of an application system, especially computer novices, can become confused and frus- trated after experiencing the first, perhaps not recoverable error situations during the early stages of explora- tion and...New users of an application system, especially computer novices, can become confused and frus- trated after experiencing the first, perhaps not recoverable error situations during the early stages of explora- tion and learning. System facilities, which let users UNDO and REDO executed commands, are suggested to be an aid for active learning and can be used as a method for systematic exploration through recovering from unknown and newly explored (perhaps wrong) system states by cancelling executed commands with UNDO. An explorative learning experiment on a commercial graphics editor with a modified user inter- face revealed reasons, why one-step recall UNDO does not guarantee successful explorative learning of a complex cognitive skill such as graphics editing on computer.展开更多
文摘New users of an application system, especially computer novices, can become confused and frus- trated after experiencing the first, perhaps not recoverable error situations during the early stages of explora- tion and learning. System facilities, which let users UNDO and REDO executed commands, are suggested to be an aid for active learning and can be used as a method for systematic exploration through recovering from unknown and newly explored (perhaps wrong) system states by cancelling executed commands with UNDO. An explorative learning experiment on a commercial graphics editor with a modified user inter- face revealed reasons, why one-step recall UNDO does not guarantee successful explorative learning of a complex cognitive skill such as graphics editing on computer.
