How users react to delays in a user interface, whether website or application. The 3 main response time limits are determined by human perceptual abilities.
Jakob Nielsen's trip report for the 1992 Computer-Human Interaction conference (CHI '92).
CHI'92 (Monterey, CA, 3-7 May 1992), IEEE Software 9, 4 (July 1992), pp. 78- 79.
The concept of direct manipulation is usually viewed as a single characteristic of a class of interaction styles. Here, direct manipulation is analyzed according to a detailed layered interaction model, showing that it has quite different effects on the dialogue on the different levels. In particular, the "no errors" claim may be true at the syntax level but not at several of the levels above or below that level.
Furthermore, a unified framework is presented for conceptualizing Direct Manipulation, What You See Is What You Get (WYSIWYG), Transparency, Immediate Command Specification, Arcticulatory Directness, and Computational Appliances according to a layered interaction view.
Trip report from the ACM Hypertext'89 conference. Includes summary of Meyrowitz' discussion of open integrating hypertext and the extent to which the Memex vision has been realized so far.
Hypertext'89 (Pittsburgh, PA, 5-8 November 1989), SIGCHI Bulletin 21, 4 (April 1990), pp. 52-61.
Jakob Nielsen's trip report from the 1989 Computer-Human Interaction (CHI '89) conference held in Austin, Texas.
CHI'89 (Austin, TX, 30 April - 4 May 1989), SIGCHI Bulletin 21, 2 (October 1989), pp. 28-40.
Jakob Nielsen's trip report for the 1989 Hyper Hyper Conference in London, UK.
British Computer Society HyperHyper workshop (London, UK, 23 February 1989), SIGCHI Bulletin 21, 1 (July 1989), pp. 65-67.
Jakob Nielsen's trip report for the 1987 Hypertext conference.
HyperTEXT'87 (Chapel Hill, NC, 13-15 November 1987), SIGCHI Bulletin 19, 4 (April 1988), pp. 27-35. Also exists in a hypertext version in HyperCard format.
Jakob Nielsen's trip report for the 1986 Computer-supported Cooperative Work conference (CSCW '86).
Computer-Supported Cooperative Work'86 (Austin, TX, 3-5 December 1986), ACM SIGCHI Bulletin 19, 1 (July 1987), pp. 54-61.