Don’t Make Me Wait! User Perception of Time & Software Speed презентация

Содержание

ABOUT ME chriskiess.net @chris_kiess Senior UX Designer, GN ReSound

Слайд 1Don’t Make Me Wait! User Perception of Time & Software Speed


Chris Kiess, MLS, MS


Слайд 2ABOUT ME
chriskiess.net
@chris_kiess
Senior UX Designer, GN ReSound


Слайд 3RESOURCES
#hcitime
slideshare.net/ckiess/
chriskiess.net/timeresources


Слайд 4


Science of
Waiting
Humans &
Computers
Techniques &
Applications
1
2
3


Слайд 5Science of Waiting

1


Слайд 6
WAIT
TIMES
ELEVATOR


Слайд 7
DOOR
CLOSE
BUTTON


Слайд 8
ON
Mirror, mirror
the wall


Слайд 9For disappearing acts, it's hard to beat what happens to the

eight hours supposedly left after eight of sleep and eight of work.
~Doug Larson

Слайд 10Things are not always as they seem


Слайд 113 Concepts in Time Perception
Make it appear faster
Make it faster
Make it

tolerable

Слайд 12MAKE IT FASTER
Performance vs. Responsiveness
Benchmarks/Standards
Weber Ratio (JND)


Слайд 13MAKE IT APPEAR FASTER
Psychological Time
Perception vs. Reality
Pliancy


Слайд 14More than meets the eye


Слайд 15TOLERANCE
Inaccurate / Subjective
Vierordt’s Law
Relative


Слайд 16
PERCEPTION
Service =
Minus Expectation


Слайд 17
PLAY
It’s Hard too
Catch-up Ball


Слайд 18TOLERANCE THRESHOLDS
.5 – 1.0 sec. = Immediate
.1 - .2 sec. =

Instantaneous

10 -12 sec. = Attention (single task)

2 – 5 sec. = Continuous


Слайд 19Humans & Computers

2


Слайд 20HCI is Communication


Слайд 21WHAT IF HCI MIMICKED OUR OWN INTERACTIONS?


Слайд 22THEY WOULD
How long it will take
Tell us input is

received

Manage tasks in background


Слайд 23THEY WOULD ALSO
Anticipate common pathways
Free us for other tasks
Simply respond and

reassure

Слайд 24OUR RELATIONSHIPS


Слайд 25 12 Techniques & Applications

3


Слайд 261. Create User Flow


Слайд 27


User
Control
Challenge
Users
Goals &
Feedback
1
2
3
USER FLOW


Слайд 28Challenge Skills Match
Vary Skill Levels
Beginner vs. Expert
Software Modes / Preferences


Слайд 29GIVE USERS SENSE OF CONTROL
Forgiveness
Provide Options
Undo, Escape Hatches, Back Buttons


Слайд 30“the flow experience is typically described as involving a sense of

control – or more precisely as lacking the sense of worry about losing control.”
~ Mihaly Csikszentmihalyi

Слайд 31Minimize Interruptions


Слайд 32AVOID ANXIETY


Слайд 33AVOID UNCERTAINTY


Слайд 34GOALS & FEEDBACK
Precise Language
Prompt Feedback
Trim Information & Descriptive Buttons


Слайд 35Hick-Hyman Law


Слайд 362. Use Time Anchors


Слайд 37Time Anchor Matrix


Слайд 38USING TIME ANCHORS
“Installation will be between 3 and 5 minutes”
“The download

will take about 30 seconds”

“Time remaining: 10 minutes”


Слайд 39TIME ANCHOR USE
Ranges prevent users from holding us to exact numbers
Never

skip over a number when representing ranges

Use anchors for countdown units in timers


Слайд 403. PROGRESS INDICATORS


Слайд 41PROGRESS INDICATOR - GENERAL GUIDELINES
0-2 Seconds - No Indication Needed
2-5

Seconds - Busy Animation
5-X Seconds - Progress Indication Needed
10+ Seconds - Cancel Button

Слайд 42PROGRESS INDICATOR DESIGN
Avoid Time Elapsed
Time vs. Work Units
Never Increase Time Unit

Increments

Слайд 43NO SPECIFICITY


Слайд 44BE SPECIFIC
Never start at zero
How long will it take?
Use time anchors


Слайд 45DESCENDING DURATIONS
&
NONLINEAR PROGRESS BARS


Слайд 46 FINAL COUNTDOWN


Слайд 474. PREEMPTIVE START


Слайд 48No clear start or end time – less ability to estimate

duration

Слайд 495. EARLY COMPLETION & INVISIBLE DECONSTRUCTION
Finish details & deconstruct in background
Ends process

early

Слайд 506. CONTINUOUS DURATIONS
Avoid segmentation of processes
Get input upfront & automate process
Fire

& Forget!

Слайд 51
Doctor’s
Segmentation at the
Office


Слайд 52
USER
Holding the
Captive


Слайд 537. MEANINGFUL DIVERSION


Слайд 54
DISNEY
The
Fast Pass


Слайд 55BAGGAGE CLAIM


Слайд 568. WORTH THE WAIT


Слайд 57WOULD WAIT AGAIN


Слайд 58THEY WILL WAIT AGAIN


Слайд 599. UNDERSCORE VALUE


Слайд 6010. SET EXPECTATIONS & EXCEED THEM


Слайд 6111. OFFER CONTEXTUALIZED FEEDBACK
Your system does not meet the minimum requirements


Слайд 62TIME PERCEPTION
12. INCLUDE
IN DESIGN & TESTING PROCESS


Слайд 63METHODS
TESTING
ROOT CAUSE
EXPERT REVIEW


Слайд 64SUMMARY
MODEL REAL WORLD
TIME = SUBECTIVE
INTEGRATE INTO DESIGN


Слайд 65“When a man sits with a pretty girl for an hour,

it seems like a minute. But let him sit on a hot stove for a minute – and it's longer than any hour. That's relativity.”

~Albert Einstein

Слайд 66QUESTIONS


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