08 Design & Prototyping

Question 1

A conceptual model is a high level description of

Answer 1

how a system is organized and how it operates

what people can do with a system

what concepts are needed to understand how to interact with it

Question 2

A key benefit of conceptual model

Answer 2

enables designers to straighten out their thinking before they start laying out their widgets

Question 3

system image

Answer 3

makes the designer‘s model clear to the user

Question 4

Formulating A Conceptual Model

Answer 4

How will the system support user in carrying out tasks?

Which interface metaphors?

Which interaction mode(s)?

alternative design insights or options?

Question 5

Interface Metaphors

Answer 5

i.e.:
Buttons and switches
Menu
Folder
Recycler

Interface metaphors combine familiar knowledge with new knowledge in a way that will help the user understand the product

Question 6

Expanding the Conceptual Model

Answer 6

1. What functions will the product perform?
2. How are the functions related to each other?
3. What information needs to be available?

Question 7

The 10 Plus 10 Technique

Answer 7

State the design challenge

Generate 10 different designs (creative/diverse)

Choose the most promising ones

Sketch 10 details /variations of the design concepts

Question 8

Techniques for Conceptual Design

Answer 8

Sketches

Storyboards

Question 9

Develop A Sketching Vocabulary

Answer 9

Start with simple lines & shapes
Compose simple objects
Experiment with different ways
Illustrate activities & dynamics

Question 10

horizontal prototype vs vertical prototype

Answer 10

Horizontal prototype: provide a wide range of functions, but with little detail

Vertical prototype: provide a lot of detail for only a few functions

Question 11

Other Types of (Paper) Prototypes

Answer 11

Post-It Prototype
Card-based Prototype
Photo Sketches

Question 12

Wizard of Oz Testing

Answer 12

Human ‚wizard‘ simulates system response