1. Imran Hussain University of Management and Technology (UMT)
Virtual University Human-Computer Interaction
Lecture 26 Behavior & Form – Part I
Imran Hussain
University of Management and Technology (UMT) 1

2. In Last Lecture … Design Synthesis Principles Guidelines Pallets
Imperatives

3. In Today’s Lecture … Behavior and form Software posture
Posture for desktop

4. Let’s consider a service representatives

5. definition
Predominant manner in which program present itself to the user

6. The presentation of the program affects the way the user relates to it, and this relationship strongly influences the usability of the product.

7. Desktop posture Different categories of desktop posture are:
Sovereign posture
Transient posture
Daemonic posture
Auxiliary posture

8. Sovereign posture Programs that are best used full-screen
Offer large set of related functions and features\
Examples
Word processors
Spread sheets
E.mail applications
Vertical applications

9. Sovereign posture
Since user interact with sovereign programs dominate the screen therefore as much real screen state should be used as possible.
Sovereign program should run maximize
Sovereign should work well in different screen configuration
Color and texture of the visual presentation is very critical
The user can look at small images

10. Sovereign posture Visual feedback Type of visual indicators:
Provide an environment for rich visual feedback
Type of visual indicators:
Program status
Status of data
State of the system

11. Benefits
Users with passage of time became familiar with these advance features and because they have access to these feature it gives them more power and control and that would lead them to become more satisfied users.

12. Document centric application
Document window within sovereign program should also fill the screen
Many sovereign programs are document-centric (this primary features involves the creation and viewing of documents containing rich data.)

13. Transient posture
Perform high-relief function with a tightly restricted set of accompanying controls
Can be called within sovereign application.

14. Other characteristics
Interface is presented more boldly in more detail as

15. Set up user preferences
Panel with button

16. Other considerations
All information and facilities required should be on the interface of single window
Application should be moveable because the might obscure the sovereign application

17. Transient posture
Should not be resizable

18. Daemonic posture
Programmers give daemonic programs same treatment (full screen control panels) that are better suited to sovereign programs

19. Auxiliary posture
Programs that blend the characteristics of sovereign and transient programs
The auxiliary program is continuously present like a sovereign program, but it performs only a supporting role.
Examples