Human computer interaction post millennial models
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Human–Computer Interaction post-millennial models. Alan Dix [email protected] http://www.hcibook.com/alan/teaching/rome2003/. Week 1: 19–23 May 2003 basics of HCI and cognition Tues 20 th am and pm lightening introduction vision 3D and colour time human context strand

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Human–Computer Interaction post-millennial models

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Human computer interaction post millennial models

Human–Computer Interactionpost-millennial models

Alan Dix

[email protected]

http://www.hcibook.com/alan/teaching/rome2003/


Course outline

Week 1: 19–23 May 2003

basics of HCI and cognition

Tues 20th am and pm

lightening introduction

vision 3D and colour

time

human context strand

Wed 21st am , Thurs 22nd pm and Fri 23rd pm

scenarios

task analysis

rich work ecologies

understanding interaction

Week 2: 26–30 May 2003

system definition strand

Mon 26th pm and Tues 27th am and pm

understanding state

physical–logical mappings

continuous interaction and time

formal interaction modelling

at the edge

Thurs 29th am and pm

designing experience

innovation and creativity

course outline


Scenarios

scenarios

  • stories for design

    • communicate with others

    • validate other models

    • understand dynamics

  • linearity

    • time is linear - our lives are linear

    • but don’t show alternatives


Scenarios1

scenarios …

  • what will users want to do?

  • step-by-step walkthrough

    • what can they see (sketches, screen shots)

    • what do they do (keyboard, mouse etc.)

    • what are they thinking?

  • use and reuse throughout design


Movie player

movie player

Brian would like to see the new film “Moments of Significance” and wants to invite Alison, but he knows she doesn’t like “arty” films. He decides to take a look at it to see if she would like it and so connects to one of the movie sharing networks. He uses his work machine as it has a higher bandwidth connection, but feels a bit guilty. He knows he will be getting an illegal copy of the film, but decides it is OK as he is intending to go to the cinema to watch it. After it downloads to his machine he takes out his new personal movie player. He presses the ‘menu’ button and on the small LCD screen he scrolls using the arrow keys to ‘bluetooth connect’ and presses the select button. On his computer the movie download program now has an icon showing that it has recognised a compatible device and he drags the icon of the film over the icon for the player. On the player the LCD screen says “downloading now”, a percent done indicator and small whirling icon. … … …


Play act

play act …

  • mock up device

  • pretend you are doing it

    swiss army knife …


Persona

persona

  • description of an ‘example’ user

    • not necessarily a real person

  • use as surrogate user

    • what would Betty think

  • details matter

    • makes her ‘real’


Example persona

example persona

Betty is 37 years old, She has been Warehouse Manager for five years and worked for Simpkins Brothers Engineering for twelve years. She didn’t go to university, but has studied in her evenings for a business diploma. She has two children aged 15 and 7 and does not like to work late. She did part of an introductory in-house computer course some years ago, but it was interrupted when she was promoted and could no longer afford to take the time. Her vision is perfect, but her right-hand movement is slightly restricted following an industrial accident 3 years ago. She is enthusiastic about her work and is happy to delegate responsibility and take suggestions from her staff. However, she does feel threatened by the introduction of yet another new computer system (the third in her time at SBE).


Human computer interaction post millennial models

NUCLEAR REACTOR MAIN CONTROL PANEL

Emergency Shutdown

Emergency Confirm

Reactor Targets

LOTS OF OTHER

CONTROLS

7934

CONFIRM

IMMEDIATE

SHUTDOWN

COMMENCE

Pressure

325

Temp

Alarm Control

alarm

control

panel

CANCEL

10256

Flow Rate

+

reactor targets

information

panel

emergency

shutdown

panel

manual

override

panel

7

8

9

keypad

for manual

override

4

5

6

emergency

confirm

panel

0

1

2

3

Manual Override

6000

Target

Pressure

SET


Emergency scenario

Emergency Scenario

Jenny, the Nuclear Power Plant operator has normal sight and no physical or perceptual impairments. Her shift started at 11pm and it is now 5am in the morning. So far the plant has been operating within normal parameters and the current alarm state is therefore green

1 Jenny notices the core reaction rate has risen very rapidly

2.she realises she must immediately change the reactor target pressure to correct this

3.she goes to the Alarm Control Panel on the far right of themain reactor control panel and presses '+' twice (as it isstarting off in green state)

4.the Emergency Confirm button glows red

5.she moves across to the Manual Override panel on the far left of the main reactor control panel

… … …


Depths

depths

  • explore interaction

    • what happens when

  • explore cognition

    • what are the users thinking

  • explore architecture

    • what is happening inside


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