digital design and manufacture-1.7

Question 1

what are the advantages of CAD?

Answer 1

-can save time and money
-designs can be edited rather than drawn by hand from scratch for each iteration
-experimental changes can be made quickly on screen
-virtual modelling software replaces the need to hand make physical samples, which has less impact on the environment
-designs and developments are more accurate- pattern pieces can be retrieved from a database and printed out

Question 2

what are the disadvantages of CAD?

Answer 2

-the initial set up costs are high
-the systems require regular updates and technical support
-potential risk of cyber attacks

Question 3

when developing and presenting ideas, how can CAD be used?

Answer 3

1. to generate the development of product design and pattern ideas for fabric
2. simulate ideas interactively- 3D models can be viewed from any angle, allowing errors to be detected and corrected at an early stage
3. show final ideas on a presentation board to collect client and marketing feedback

Question 4

what can CAD be used for?

Answer 4

1. showing ideas in different colour ways using a pantone colour palette, image mapping or virtual prototype
2. plan and create accurate pattern repeats for printed fabric
3. plan accurate and correct lay plans to maximise profit and minimise fabric wastage

Question 5

why is CAM often used to replace manual operations?

Answer 5

-machines can work quickly and continously
-quality is more consistent as highly specialised machines are programmed to carry out identical operations
-machines can work with materials and chemicals that might be harmful to humans

Question 6

what can a PDS do?

Answer 6

produce a lay plan to show how pattern pieces should be placed on the fabric so that:
-there is minimum wastage
-different garment sizes can be cut together to reduce waste
-all pattern pieces are cut out
-any pattern or one way design is taken into account

Question 7

what does PDS stand for?

Answer 7

pattern design software

Question 8

what does CNC stand for?

Answer 8

computer numerical control

Question 9

what does EDI stand for?

Answer 9

Electronic data interchange

Question 10

what is EDI?

Answer 10

a system that relies on the use of computers to electronically exchange all documents

Question 11

what is an example of what EDI can do?

Answer 11

-EDI can analyse consumer trends and use the information to meet consumer demand

Question 12

what does EPOS stand for?

Answer 12

Electronic point of sale

Question 13

what is EPOS?

Answer 13

a computer based scanned barcode system used to read barcode information as well as capture data when products are purchased

Question 14

what are the advantages of EPOS?

Answer 14

-stock levels are easily monitored and the system automatically reorders if stock levels are low or a particular colour is out of stock
-saves money as shops do not need storage facilities
-sales data and consumer details are collected for use by marketing departments to inform the development of new products and marketing strategies

Question 15

What are the advantages of PPC?

Answer 15

-allows for improved decision making and control
-enables companies to quickly respond to change
-more efficient planning of processes and machine requirements
-efficient planning for style change over

Question 16

what can PPC be used for?

Answer 16

-co-ordinating delivery dates to ensure that all materials and components are available using JIT-
-used to plan production to ensure machines and trained operatives are available
-can be used to organise the flow of work
-can be used to monitor the status of orders and track orders through the supply chain
-reduces costs associated with errors

Question 17

what is PPC?

Answer 17

production, planning and control- this is used for planning and organising all aspects of the manufacturing process. PPC considers what machine/tool will be used at every work station, how much time each product will spend at the workstation, if there will be any finishes used on the product, if components/materials will have to be outsourced from another company and what the delievery times would be, what types of raw materials will be used in the production etc