When the design meets the needs of the manufacturer and designers.

When the user is included in the design process throughout design and manufacture

When a design is created for one person

When the design is developed and changed based on testing in laboratories

Designing a stereotypical response and not developing or improving the design

Designing a product that is the best solution first time

Designing a unique and interesting design that fixates peoples attention

Designing products that solve a problem

isometric

Orthographic

Exploded

Perspective

Isometric

Orthographic

System/ Schematic

Perspective

To show the rendering on a product

To show how it all fits together

To use as a promotional image

To show all the dimensions

To save time, money and reduce the waste of materials

To make the product look better

To make the world a better place

To create patterns that are easy to follow

They look good and people are more likely to buy the product if it has been designed on CAD

They can be edited quickly, send via email and sent to CAM to be made

They are the easiest way to design products

They look more professional so manufacturers are more likely to make a product designed on CAD

Designing with the user as the focus of the design

Designing with a large group of people working together to come up with design solutions

Designing using a block based, top down approach looking at the inputs and outputs and subsystems

Designing in a cyclical way testing and evaluating as you go along

It can be time consuming if lots of prototypes need to be produced

It may become too focused on a users requirements and be unviable to sell

It can lead to unnecessary components being used and larger costs as a result

It can result in a stereotypical design that does not work