the requirements for PD and development

Question 1

specification criteria and fitness for purpose

Answer 1

environment
testing
safety
product life span
materials
ergonomics
aesthetics
performance
product cost
time scale
size and weight
maintenance

Question 2

critical analysis

Answer 2

product analysis- product with direct access to so you can interact with it
function- perform a task analysis assessing its success
task analysis-break a specific task down into individual stages, how closely a product is suited to a particular task
ergonomics- how the user interacts
aesthetics- factual and not be subjective
materials- importance of each properties
process- consider assembly order
scale- number of products, suitability
environmental impact- impact on environment

Question 3

visual appearance models

Answer 3

aesthetics form and appearance of design concept

Question 4

working prototypes

Answer 4

test mechanisms and technical principles
resemble final

Question 5

rapid prototyping

Answer 5

3D block models
can be printed in a wide range of materials
tested prior

Question 6

accuracy of production

Answer 6

must be suitable for production
simple geometric forms- increase the ease
reducing complexity in machinery
geometric forms allows accurate fully dimensioned drawings
possible to draw cad to 8dp

Question 7

proportion

Answer 7

golden ratio 1:1.61803398875

Question 8

colour and texture

Answer 8

combining on colour wheel analogous colour combination

Question 9

ergonomics

Answer 9

range of sizes
range of abilities
movements and forces needed
shape and form
materials
colour
symbols

Question 10

design considerations for control interfaces

Answer 10

• shouldn’t have to move unnecessarily
• easy to grip
• easy to operate
• pressure considered
• varying shapes and sizes
• large clear labels
• important info shown