RO38 TA4: evaluating design ideas

Question 1

qualitative comparison

Answer 1

information collected through observations, interviews and from examining and comparing the design idea with the design brief and specification

Question 2

quantitative comparison

Answer 2

comparing numerical data from a model against factual data within the design brief and specification

Question 3

ranking matrices

Answer 3

used as a tool to help make decisions when comparing products or when evaluating a product or design idea; provides a set criteria for evaluation

Question 4

simple rank matrix

Answer 4

simply scoring your ideas and seeing which ideas scores the highest overall,the ranking criteria can be taken from your design specification

Question 5

weighted rank matrix

Answer 5

sometimes points will be more important than others, it adds a weighting column that allows some of your criteria worth more points

Question 6

datum rank matrix

Answer 6

compares designs against a chosen design and against each other. you say if the design is better or worse in certain criteria than the control (datum) design

Question 7

quality function deployment

Answer 7

a design tool that helps transform the customers needs and wants into a product design and a method for evaluating ideas
it is similar to the datum that each customer need is weighted according to the importance, it is very complicated and time consuming to make

Question 8

virtual 3D CAD

Answer 8

a computer generated representation of a design created using cad software

Question 9

card

Answer 9

used to create real-life models; needs minimal equipment and only basic resources

Question 10

block

Answer 10

using blocks of material to create a 3D representation of a design or part of a design

Question 11

breadboarding

Answer 11

a way of testing electronic circuits on a solderless construction base called a breadboard

Question 12

3D printing

Answer 12

process of using a computer-controlled machine to crate a 3D model of your design, it is an additive manufacturing technique, requires the generation of a computer model before starting, due to the size of 3D printer larger designs need to be printed in sections and assembled later

Question 13

reasons for identifying potential modifications

Answer 13

it may not meet the functions in the design brief or points on the design specification, or the users dislike parts of the design meaning it might require redesigning, you must explain your resons for redisigning

Question 14

additive manufacturing technique

Answer 14

it starts with raw material and builds up the design

Question 15

user testing

Answer 15

product testing is carried out by people not related to the design process or designer, this is so their views are unbiased. best done with multiple people for general feedback