HumanComputer Interaction postmillennial models Alan Dix alanhcibook com

Human–Computer Interaction post-millennial models Alan Dix alan@hcibook. com http: //www. hcibook. com/alan/teaching/rome 2003/

course outline Week 1: 19– 23 May 2003 Week 2: 26– 30 May 2003 basics of HCI and cognition system definition strand Tues 20 th am and pm Mon 26 th pm and Tues 27 th am and pm • lightening introduction • vision 3 D and colour • time • • understanding state physical–logical mappings continuous interaction and time formal interaction modelling human context strand at the edge Wed 21 st am, Thurs 22 nd pm and Fri 23 rd pm Thurs 29 th am and pm • • scenarios task analysis rich work ecologies understanding interaction • designing experience • innovation and creativity

planning for innovation • usually risk and gain trade off – innovate = high risk, may fail – conservative = low risk, unspectacular results • can we get the best of both?

the detailed plan • many small steps • pre-planned • guaranteed outcome • but sooooooo boring

the spark from heaven plan BRIGHT IDEA ! • very common • review, invent method, implement, evaluate, … • may be great … • but likely to fail completely

back burner activity • low risk path + high risk high gain path • strong feed from low high risk non-essential high low ?

incremental output syuh how gtw hsio i ert ag ty ghn ty we ghty chdi qw oatyf wet dfla ght a • linear path + high risk elements • … but incremental (normally dangerous!) – outputs at many stages – can stop at any stage – good for limited time (e. g. Ph. D!)

validating work your work justification expert opinion • • justification expert opinion • –previous research – previous research • new experiments – new experiments evaluation experiments • • evaluation experiments • –user studies – user studies • peer review – peer review

justification vs. validation justification evaluation • different disciplines – mathematics: proof = justification – medicine: drug trials = evaluation • combine them: – look for weakness in justification – focus evaluation there