From: Ken Hinckley [kenh@microsoft.com] Sent: Tuesday, July 27, 1999 3:08 PM To: 'Rudy Darken'; Mike Rorke; 3d-ui@hitl.washington.edu Subject: RE: System Commands Rudy's right, this is a very good paper and the issues in VE's are directly comparable. I'd also recommend the Buxton chunking & phrasing paper; it's a sort of a more general view of the Foley lexicon, with some very insightful analysis. It is probably Buxton's best paper. 1. Buxton, W., "Chunking and Phrasing and the Design of Human-Computer Dialogues," Information Processing `86, Proc. of the IFIP 10th World Computer Congress, 1986, 475-480. Ken Ken Hinckley Microsoft Research One Microsoft Way Redmond, WA 98052 (425) 703-9065 kenh@microsoft.com > -----Original Message----- > From: Rudy Darken [mailto:darken@acm.org] > Sent: Sunday, July 25, 1999 8:38 AM > To: Mike Rorke; 3d-ui@hitl.washington.edu > Subject: Re: System Commands > > > I haven't been following this thread but let me chime in with > this. I refer > you to Foley's 1984 (?) paper on human factors of interaction > techniques. He > describes ALL interaction in terms of a tiny lexicon. > Selection is on his > list. Unselection (or release) would be implied by this. > Manipulation is the > combination of what he calls position, orientation, and path. > Travel is the > same but is a special case involving the viewpoint. This > isn't to say that a > further breakdown, like what Doug is trying to do, isn't > valuable. Only > realize you aren't breaking new ground here. At best, you're > digging deeper. > And you have to be certain that the level of detail in your > taxonomy is a > known quantity. Otherwise, you stand to confuse the issues. > > For those unfamiliar with this paper, I highly recommend it. > In spite of the > novelty of VE systems, I have yet to see anything that falls > outside the > scope of Foley's categorization. > > rudy > > > > ---------- > >From: Mike Rorke > >To: 3d-ui@hitl.washington.edu > >Subject: System Commands > >Date: Sun, Jul 25, 1999, 3:02 AM > > > > > Hi ... > > > > I have been reading through Doug Bowman's thesis on > 'Interaction Techniques > > for Comman Tasks in Immersive Virtual Environements'. Doug lists the > > important tasks in VE interaction as Selection, Release, > Manipulation and > > Travel. Would 'System Command' not also be a universal > task? Intuitively, > > the taxonomy could be: > > |-Speech > > |-Direct---|-Gesture > > System Command -| > > |-Indirect-|-Virtual Menu > > |-Tool/Widget > > > > I realise that, certainally with the Indirect branch, this > could be thought > > of as specific form of a selection operation - but I feel > that the actions > > of Selection and giving commands to the system are > sufficiently different to > > warrant another 'universal task'. Any comments? Any > additions to my taxonomy > > (I realise that it is pretty simplistic) ? > > > > Mike > > -- > > ------------------------------------------------------------- > > " In my dreams, I was drowning my sorrows > > When my sorrows, they learned to swim " > > -U2 > > Michael Rorke mrorke@cs.ru.ac.za > > Computer Science Masters mike@rucus.ru.ac.za > > Rhodes University, Grahamstown http://rucus.ru.ac.za/~mike > > ICQ# 37904228 > > ------------------------------------------------------------- > > * Standard ANSI disclaimer * > > >