OCR GCSE Design and Technology design thinking and communication overview quiz quiz

Plan it, make it, then sell it

Research, design and then build

Sketch it, model it, then test

Explore, create, evaluate

Iterative design repeats the explore-create-evaluate loop; linear design runs once with no looping back

Iterative design skips the testing stage entirely, whereas linear design always includes thorough testing

They are exactly the same thing, and the two words can be used interchangeably in any design context

Linear design is always faster and better, because it never wastes time looping back over earlier work

They are the single most accurate way to show exact dimensions to a manufacturer

They are quick, flexible and cheap, so many ideas can be explored fast

They can be sent straight to a CAM machine to be made without any further work

They completely remove the need for any annotation, because the drawing says it all

Only the date the sketch was drawn and the name of the person who drew it

A photorealistic finish that makes the rough sketch look like a finished render

Materials, dimensions, how parts work, and the reasoning behind features

Nothing genuinely useful, since a clear sketch should always speak for itself

15 degrees

45 degrees

60 degrees

30 degrees

Working (orthographic) drawing with dimensions and scale

A one-point perspective drawing that shows the product realistically in 3D

A quick freehand sketch annotated with rough notes about the design idea

An exploded diagram that pulls the separate parts apart along assembly lines

16 mm

400 mm

80 mm

800 mm

To show the finished product in fully realistic one-point perspective for a client

To give the exact manufacturing dimensions and tolerances needed to make each part

To separate the parts along lines of assembly to show how they fit together

To present the product's final colour scheme and surface finish to the customer

They are completely unrelated processes that are never used together in industry

CAM designs the product on a computer; CAD then makes the product on the machines

Both CAD and CAM are simply types of freehand drawing done quickly by hand on paper

CAD designs on a computer; the CAD model drives CAM machines to make the product

Software, hardware and machines are expensive and staff need training

It is completely impossible to edit a CAD model once it has first been drawn

It cannot produce any 3D views, and only flat 2D drawings can ever be made with it

It cannot be linked to or used with any CAM machine at the manufacturing stage

A finished, fully working product made from the final chosen materials

A quick, cheap 3D model made early to check size, shape and proportion

A spreadsheet that predicts the total cost of making the product in quantity

A detailed orthographic drawing showing exact dimensions and a stated scale

Building a full physical prototype from the real materials in order to test how well it actually functions

Drawing the product in accurate 3D by hand using isometric or perspective techniques

Using calculations or a spreadsheet to predict performance or cost without making the product

Cutting a part out on a laser cutter directly from the finished computer-aided design