The document discusses interface metaphors, interaction types, and interaction paradigms. It notes that interface metaphors can help users understand conceptual models by making new systems easier to learn, though they also limit flexibility. Different interaction styles are appropriate depending on the task and requirements. Interaction paradigms have evolved from desktop interfaces to ubiquitous computing integrated into the environment. Knowledge exists both internal to users and distributed in the environment, shaped by natural and cultural constraints.

1. INTERFACE METAPHORES ,
INTERACTION TYPES AND
INTERACTION
BY : UM E FARWA

2. “
”
There is no “best”
conceptual
model
YOUR VIEWS?

3. DM is good for “doing” types of tasks –
e.g designing, drawing, flying, driving
Instructions good for repetitive tasks

4. Interface metaphors
 Interface designed to be similar to a physical entity but
also has it's own properties
 – e.g desktop metaphor, web portals

5. Pros/Cons of interface metaphors
 Helps users understand the underlying conceptual model
 Makes learning of new systems easier
 Cons
 Makes learning of new systems easier
 Any other?

6. Interaction Styles
 Command
 Speech
 Data entry
 Form filling
 Query
 Pen
 Augmented reality
 Gesture ....
 Graphical

7.  What is difference VR and AR?

8. Which interaction style to choose ?
 YOUR VIEWS?
 Need to determine requirements and user
needs
 Take the budget and other constraints into
account
 Also will depend on suitability of technology
for activity being supported

9. Interaction paradigms
 From the desktop to ubiquitous computing (embedded in the environment)
Examples of new paradigms
 Ubiquitous computing
 augmented reality
 Transparent computing ..

10. “
”
Knowledge in the head and in
the world
Travel through a city without being able to describe the route precisely

11.  Information in the world
 Great precision is not required
 Natural constraints are present
 Cultural constraints are present

12. Knowledge and constraints
 Declarative knowledge : knowledge “of” – Stop at red lights
 Screws (clockwise, counterclockwise)