8. Prototyping

Question 1

What is the DIA Cycle?

Answer 1

Design, Implement, Analyze

In Prototyping you go from low to high fidelity and to the Working System D and A

Question 2

What is the general taxonomy of Prototyping?

Answer 2

Horizontal vs Vertical Prototyping
Low-Fidelity vs High-Fidelity Prototyping
Non-Functional vs. Functional Prototyping
Evolutionary vs Throw-Away Prototyping

Question 3

Describe Horizontal vs Vertical Prototyping and the difference between them?

Answer 3

Horizontal: Display breadth of functionality, no back end support
Vertical: Full functionality and performance of a slice or small part of the system

Question 4

Describe Evolutionary vs Throw-Away Prototyping and the difference between them?

Answer 4

Evolutionary: rapid application development, incrementally evolving
Throw-away: rapid prototyping

Question 5

Describe Evolutionary vs Throw-Away Prototyping and the difference between them? And give examples.

Answer 5

Low-Fidelity: can be created very quickly, early and active user involvement
Sketches, Paper prototyping, …
Medium-Fidelity: Facade tools, …
High-Fidelity: Look & feels like the final product, but functionality is restricted

Question 6

What is the Wizard of Oz and how is it used in HCI?

Answer 6

Method for testing a non-existing system, human simulates system responses
For example for speech and gesture recognition