CLIPBOARD/UNDO PROBLEMS AVOIDED BY NAMED GROUPS AND THEIR GENERALIZATION

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dc.contributor.authorThimbleby, Haroldeng
dc.date.accessioned2008-05-20T23:29:30Z
dc.date.available2008-05-20T23:29:30Z
dc.date.computerscience1999-05-27eng
dc.date.issued1991-06-01eng
dc.description.abstractBeing able to undo any operation improves user interfaces, for various reasons. It gives the user a greater sense of safety and encourages active exploration of a system. Undo enables users to extract themselves from error states that might otherwise have trapped them. However, undo is only useful if both: the user knows they have made a mistake, and that the mistake can in fact be undone. Clearly, a poorly implemented undo may compromise the user. This brief paper gives an example taken from the Macintosh user interface where a 'correctly' implemented undo-last-action (the standard Macintosh undo) fails the first condition given above because of the clipboard. We infer lessons about the observability of user actions from this example, and look forward to a safer, more generalised interface that takes the concept of generic actions (like undo, cut, copy, paste) further. This paper discusses the Macintosh user interface (Apple, 87); a discussion of its strive for consistency can be found in Tognazzini (89).eng
dc.description.notesWe are currently acquiring citations for the work deposited into this collection. We recognize the distribution rights of this item may have been assigned to another entity, other than the author(s) of the work.If you can provide the citation for this work or you think you own the distribution rights to this work please contact the Institutional Repository Administrator at digitize@ucalgary.caeng
dc.identifier.department1991-437-21eng
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/31291
dc.identifier.urihttp://hdl.handle.net/1880/46532
dc.language.isoEngeng
dc.publisher.corporateUniversity of Calgaryeng
dc.publisher.facultyScienceeng
dc.subjectComputer Scienceeng
dc.titleCLIPBOARD/UNDO PROBLEMS AVOIDED BY NAMED GROUPS AND THEIR GENERALIZATIONeng
dc.typeunknown
thesis.degree.disciplineComputer Scienceeng
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