Reflections on Symmetry Harold Thimbleby UCLIC University College London Interaction Centre 26 Bedford Way LONDON WC1H OAP UK h thimbleby ucl ac uk http Awww uclic ucl ac uk ABSTRACT Symmetry is routinely used in visual design but in fact is not just a visual concept This paper explores how deeper symmetries in user interface implementations can be re flected in the design of the user interface and make them easier to use This deeper application of symmet
Intelligent adaptive assistance and its automatic generation Harold Thimblebyt amp Mark Addison t School of Computing Science Middlesex University Bounds Green Road London N11 2NQ Philips Research Laboratories Cross Oak Lane Redhill Surrey RH1 5HA Phone 0181 362 5000 0181 362 5302 Email harold mdx ac uk addison prl philips co uk URL http www cs mdx ac uk http www philips com Abstract Manuals and interactive help are tedious to provide difficu
Formulating usability Harold Thimbleby Stirling University Stirling Scotland FK9 4LA Tel 44 786 467421 FAX 44 786 464551 EMail HWT CS STIR AC UK October 22 1998 Abstract Usability is empirical and often highly context specific but it would be useful for designers to have general estimates of usability from interactive system specifications alone We discuss how this problem may be approached and we give examples We also discuss the justification for the appro