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Imran Hussain

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... (work in background: taskbar icons) Auxiliary posture (streaming audio in ... Postures Information-oriented sites ... Choices Hiding Ejector Seat Levers ... – PowerPoint PPT presentation

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Title: Imran Hussain


1
Virtual University Human-Computer Interaction
Lecture 27 Behavior Form Part II
  • Imran Hussain
  • University of Management and Technology (UMT)

2
In Last Lecture
  • Software Postures
  • Sovereign posture (full-screen programs outlook,
    word)
  • Transient posture (temporary programs
    calculator, volume control)
  • Daemonic posture (work in background taskbar
    icons)
  • Auxiliary posture (streaming audio in browser
    pane)

3
In Todays Lecture
  • Postures for Web
  • Postures for other Platforms
  • Kiosks (transient)
  • Handheld Devices (transient)
  • Appliances (microwaves, transient)
  • Orchestration and Flow
  • Eliminating Excise

4
Web Postures
  • Information-oriented sites
  • Transaction-oriented sites
  • Portals

5
Other Platforms
  • Kiosks
  • Handheld devices
  • Appliances

6
Introduction
7
User in harmonious frame of mind ? user is
productive ? software productive
8
Flow and Transparency
9
What is Flow?
10
How to Improve Flow?
11
How to Make an Interface Invisible?
12
Follow Mental Models
13
Direct, Dont Discuss
14
Keep Tools Close At Hand
15
Mode-less Feedback
16
Orchestration
17
What is Orchestration?
18
How can we Ensure Good Orchestration?
19
Adding Finesse Less is More
20
Distinguishing Possibility from Probability
21
Providing Comparisons
22
Using Graphical Input
23
Reflecting Program Status
24
Avoiding Unnecessary Reporting
25
Avoiding Blank Slates
26
Command Invocation vs. Configuration
27
Asking Questions vs. Providing Choices
28
Hiding Ejector Seat Levers
29
Excise
30
What is Excise?
31
GUI Excise
32
Excise and Expert Users
33
Training Wheels
34
Pure Excise
35
Visual Excise
36
Determining What is Excise
37
Stopping the Proceedings
38
Errors, Notifiers and Confirmation Messages
39
Making the user ask permission
40
Protecting us from ourselves
41
unresponsiveness
42
Common excise tips
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