Xref: utzoo comp.sys.mac:15890 comp.windows.misc:518 Path: utzoo!mnetor!uunet!mcvax!ukc!strath-cs!glasgow!gilbert From: gilbert@cs.glasgow.ac.uk (Gilbert Cockton) Newsgroups: comp.sys.mac,comp.windows.misc Subject: Re: 2 button mouse Message-ID: <1120@crete.cs.glasgow.ac.uk> Date: 9 May 88 13:49:03 GMT References: <4129@hoptoad.uucp> <283@rhesus.primate.wisc.edu> <1710@ssc-vax.UUCP> <1013@crete.cs.glasgow.ac.uk> <1921@sugar.UUCP> Reply-To: gilbert@cs.glasgow.ac.uk (Gilbert Cockton) Organization: Comp Sci, Glasgow Univ, Scotland Lines: 31 Keywords: window human computer interface In article <1921@sugar.UUCP> peter@sugar.UUCP (Peter da Silva) writes: >But why do you need to maintain this mapping? By means of real pop-up >menus you can map an indefinite number of operations to the "menu" button >without taking up any extra screen space. This would slow you down. The point of chording is to extend mouse capabilties without resorting to menus. It will make some difference when your hand was already on the mouse, otherwise a clover/shift/option chord is just as good. The shift-click extend-selection combination on the Mac is a good example of chording with mouse and KB, as your hand is on the mouse (no movement commands from KB) anyway, but you're going back to that keyboard to type too. >> So, *for one-to-one mappings* (a good thing *all things being equal*) >But all things aren't equal, are they? And is it such a good thing? With n-to-one mappings, you have modes. It's good, all things being equal, to avoid these, where possible. >You have to have some sort of cueing to let the user know what they just did, >anyway. Why not use the selection process itself? You need feedback, but not always cueing, especially for experts. The selection process is slower, so chording is beneficial for expert error free performance. >> Although the respondent rarely uses his keyboard, this cannot be the >What makes you think that I rarely use the keyboard? You said you put your keyboard under the monitor yourself much of the time. >In fact, when I'm doing something keyboard intensive I rarely use the mouse. >They're both useful tools, but effective typing really requires the use of >both hands, which tends to rule out the mouse. Shame they make you point with it!