inleiding tot chi

erik duvalK.U.Leuven

http://www.cs.kuleuven.be/~erikd 1

2

http://www.slideshare.net/erik.duval

• 13u30-14u00: cursus

• 14u00-15u00: CHI

• 15u00-16u00: case 1

• 16u00-16u15: break

• 16u15-17u15: evaluatie van gebruikersinterfaces

• 17u15-18u15: case 1 revisited

• 18u15-19u00: wrap-up, what next

3

There is a conflict of interest in the world of software development because the people who build it are also the people who design it.If carpenters designed houses, they would certainly be easier or more interesting to build, but not necessarily better to live in. The architect, besides being trained in the art of what works and what doesn't, is an advocate for the client, for the user.

Alan Cooper. About Face, 1995(http://www.chesco.com/~cmarion/Design/UIDesign.html)

Niet onbelangrijk…

•http://www.boston.com/campaign2000/vote/florida_voters.htm

http://www.ntk.net/nielsen2004/

http://www.demorgen.be/dm/nl/991/Multimedia/article/detail/142168/2008/01/22/Bezoekcijfers-voor-VRT-nieuwssite-deredactie-be-gaan-dieperik-in.dhtml

http://www.designinginteractions.com/

• Ben Shneiderman, Designing the User Interface. Strategies for Effective Human-Computer Interaction.

• Jakob Nielsen, Designing Web Usability.

• Jakob Nielsen & Marie Tahir, Homepage Usability.

• Donald A. Norman, The Invisible Computer & Emotional Design.

• Jef Raskin, The Humane Interface.

• Peter Morville, Ambient Findability.

• Jennu Preece, Yvonne Rogers, David Benyon, Simon Holland & Tom Carey, Human-Computer Interaction.

• Alan Dix, Janet Finlay, Gregory Abowd & Russell Beale, Human-Computer Interaction.

GUI - probleem uit jouw leven?

• paswoord: veiligheid <-> usability

• office 2003 -> 2007

• sneltoetsen niet werken of anders

• inschrijvingsnummer niet herkend

• 35 keer/u bevestigen dat taak mag (config.)

• nytimes.com: rubrieken verhuizen

• vastlopen - zandloper - verwerken met input

• te grote bestanden: loopt vast, scrollen duurt lang

• ontbrekende info - config enkel na exit en bestand

• front row per ongeluk

GUI - probleem uit jouw leven?

• 3D gratis blender: http://freeware.odlican.net/images/blender.jpg

• <> te veel iconen en geen snelkoppelingen

• windows XP en vista: niet resizebare vensters (wireless networks) en pop-up die andere vensters verbergt, ook macos en pda

• spelletjes voor pcs en consoles: strategy op playstation:pijl boven voor enter

• aandacht trekken: banners web, toledo ISP

• HTML form alles wissen

• omelet bakken - kookplat gelockt bij afwassen, handleiding nodig!, nog langer induwen

• linksonder ingedrukt om te unlocken

• silent mode ongewid uitschakelen

reele wereld• laptop afsluiten door op start-knop te

drukken

•CD eject op apple met forced reboot

•betaalterminals met knoppen waarop je niet mocht/kon op duwen

•geld terug voor kaart?

•Q8-E19

•aansturen AV in auditoria

GUI - probleem uit jouw leven?

• 7: word auto-opmaak moeilijk weg te krijgen

• 12: vlc media player versies (macos-xp)

• 5: vista, te veel kaders rond tekst

• 9: kul web site - sport info

• 3: dvd recorder taalfout (ja<>neen)

• 4: visual paradigm - lifeline in lus via menu

• 1: evolution email - wissen zoekveld of email boodschap?

• 11: toledo - onoverzichtelijk wanneer iets toegevoegd is

• 2: startmenu vista: lange scrollvensters

• 6=9

• 8: deredactie.be te druk

• 10: outlook versus express - accounts instellen (ook: eclips)

GUI - probleem uit jouw leven?

• apotheker-site: registratie -> telefoon

• uurrooster onbeschikbaar -> back-up lijst

• lessenrooster vinden -> kuleuven googlen

• PC-lab -> numlock standaard af

• ADSL helpdesk -> laat iemand terugbellen die er iets van kent

• download uit mail -> beveiligde map, overschrijving

• delijn.be

• toledo -> assignment indienen

• laserprinter -> r0x32 boodschap

• SMIL -> “error”

Human-computer interaction

“a discipline concerned with the design evaluation and implementationof interactive computing systems for human use and with the study of major phenomena surrounding them." [ACM]

technology

task

user

organisational & social

CHI

Human Factors

Human factors

Maar ook•BMW iDrive

•1952

•11 indicators, 16 controls

•1994

•35 indicators, 66 controls

•2002

•17 indicators, 29 controls

•“supermouse”: 700 functions

• ACM SIGCHI• meer dan 6000 leden, jaarlijkse conferentie• meer dan 2500 deelnemers

• tijdschriften• ACM interactions, bulletin, transactions• International Journal of Human-Computer

Studies • HCI bibliography

The economist – oct. 2004

http://www.economist.com/displaystory.cfm?story_id=3307363

To be truly successful, a complex technology needs to “disappear”

The real test is always the mom test

You are not the user!

(if you are the developer)

Four Myths

Only experts create good designs experts faster, simple and effective techniques anyone can apply

We can fix the user interface at the end good design is more than just user interface having right features, building those features right

Good design takes too long / costs too much simple and effective techniques can reduce total development time & cost (finds problems early on)

Good design is just cool graphics graphics part of bigger picture of what to communicate & how

If the user does something “wrong”, it is the fault of the

system designer!

“logical analysis is not a good way to predict people's behavior (nor are focus groups or surveys): observation is the key”

“I caution that the time frame for adoption of new technologies is measured in decades, not the months everyone would prefer”

Donald A. Norman

People unpredictable

feat

ures

reliability, convenience“no fuss or bother”

http://www.cs.berkeley.edu/~jfc/cs160/SP03/

Chrossing the chasm

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Long nose of innovation

http://www.businessweek.com/innovate/content/jan2008/id2008012_297369.htm

Dank!

Vragen?http://www.cs.kuleuven.ac.be/~erikd