Models

Question 1

What is conceptual modelling?

Answer 1

Representation of ideas, aims to outline the principles, processes and basic functions of a design or system.

Question 2

What are the types of conceptual models?

Answer 2

Graphical models (2D drawings, diagrams, sketches)
Physical models (3D, different materials)
CAD models (Computer aided design)

Question 3

Advantages and disadvantages of concept models

Answer 3

A: Explore possibilities, allows for user input, error reduction, representation of use.
D: very simple, not final product, not accurate materials or proportions.

Question 4

What is graphical modelling?

Answer 4

2D representations of an idea. They are ways for a designer to quickly explore and communicate possibilities to users or their design team.

Question 5

Types of graphical models

Answer 5

• Sketching (quickly explore ideas and directions)
  - Orthographic drawings (2D, show the sides of the product)
  - Isometric drawings (3D, show the shape and form)
  - Part and assembly (exploded or assembly drawings)
  - Perspective drawings (show object as if seen from a single point, represent space)

Question 6

What is Computer Aided Design?

Answer 6

The development and analysis of a design or system using computer software.

Question 7

What is a physical model?

Answer 7

A 3D, tangible representation of a design or system. Used to obtain information about ergonomics, structure and aesthetics.

Question 8

Types of physical models

Answer 8

• Scale models: smaller or larger than a system.
• Aesthetic models: model developed to look and feel like the real product, used to evaluate user appeal or in ergonomic testing, but not functional.
• Prototypes: replicate an idea to test and learn from it. (functionality).
• Instrumented models: equipped to take measurements to provide accurate quantitative feedback.