HCI-tutorial

Informations

• Publié par: Irne
• Nombre de lectures: 14
• Langue: English

Extrait

Swiss Federal Institute for Hygiene and Applied Physiology
Institute of Technology Prof.Dr. Dr. Helmut Krueger
Zürich
Clausiusstr. 25, CH-8092 Zürich
Introduction into Human-
Computer Interaction
Matthias Rauterberg
1998view
view
from
from
outside
inside
user's perspective
developer's perspective
operation function
operatorDIN 66 234
EC directive ISO 9241
Ulich
part 8
90/270/EEC part 10
(1988)
(1990) (1996)
(1991)
suitability for the task suitability (activity adapted) suitability for the task task orientation
self-descriptiveness feeback about system states self-descriptiveness transparency
appropriate format and pace feedback
of information presentation
conformitity with user compatibility
conformity with user
expectations expectations
consistency
information and instruction of suitability for learning support
user
ease of use applicable to suitability for selection possibilities
skill level individualization user definability
hearing and participation of participation
users
controllability controllability flexibility
error robustness error tolerancetransparency
feedback help support compatibility consistency
individualisation
individualindividual flexibility
adaptationselection
(programming)
potential degree of freedom
(meta-dialog task)
actual degree of freedomDifferences between
the visual and the auditory sense
The two most important
constrains in interface design
• the control of user's attention
• the physical size of the screenfeedback modalities
pros cons
parallel in space active eye contact
neccessary
large information
transfervisual
enforces attention noise through
allocation environment
enables the perception linear in time
of background
activitiesacoustic
important for visually exists only for a
impaired people short time span
force perception linear in time
object recognition contact with
objects haptic
textur and surface
perception neccessaryhuman memory
remember rate
100%
80%
60%
40%
20%
0 912151836
time interval until remember items (in sec)
internal memory external memorylong term memory storage
component
goals
problem solving short term memory
componentplan expectations
motoric perception componentaction
memorycomponent
visual auditory haptic
Operation "memory" "memory" "memory"
tactile outputEingabe visual output acoustic output
input-handler output-handler (DC) output-handler (AC)
representation
dialog-dialog-dialog
objects (DO) states functions (DF)
(DCS)
dialog-component (DC)
application
states (ACS)
application-application-
transformationobjects (AO)Funktionen (AF)
application component (AC)
user
user interfaceautomation
functionality
task(s)
usability
user computer
training
user-oriented requirement analysis
• know the user
• describe the context of use
• analyse the user‘s tasks
• decide for man-machine function allocation
task design
qualificationthe complete action cycle
1 task(s)
goal-, subgoal-setting
24 planning of executionfeedback
control of
selection of meansaction
3a mental operation
3b
physical operation