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What are the scales of production, and how does the right scale depend on the quantity and type of product?

Scales of production: one-off (bespoke), batch, mass and continuous production, the features of each, and how the choice of scale depends on the quantity, cost and type of product being made.

A focused answer to Eduqas GCSE Design and Technology (C600) on scales of production: one-off, batch, mass and continuous production, their features, and how the right scale depends on quantity, cost and product type.

Generated by Claude Opus 4.89 min answer

Reviewed by: AI editorial process; not yet individually human-reviewed

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  1. What this dot point is asking
  2. The four scales
  3. Choosing the right scale
  4. Try this

What this dot point is asking

Eduqas C600 expects you to know the scales of production: one-off, batch, mass and continuous, their features, and how the right scale depends on the quantity, cost and type of product. In the written exam this is tested by explaining the difference between two scales and by choosing the right scale for a given quantity.

The four scales

  • One-off (bespoke): a single, unique item, usually hand-made by a skilled worker. Fully customisable but labour-intensive and expensive per item.
  • Batch: a set number of identical items made in a group, then the line is changed to make a different product. Flexible, good for medium quantities, with some economies of scale.
  • Mass: very large numbers of identical items on a production line, often automated. Low cost per item and consistent, but heavy investment and no customisation.
  • Continuous: runs non-stop, 24 hours a day, for products in constant demand. Highly automated, lowest unit cost, but only for a single product or material.

Choosing the right scale

The choice is driven by how many identical items are needed and the cost structure:

  • A few unique items, or a prototype, suit one-off (the customisation is worth the cost).
  • A medium, repeating quantity suits batch (set up, make a batch, change over).
  • A large quantity of identical items suits mass (the tooling cost is spread over many units, giving a low unit cost).
  • A product in constant, huge demand suits continuous.

A key idea is that tooling and set-up cost (moulds, jigs, automated lines) is high but is shared over the number of units, so the more identical items you make, the lower the cost per item, which is why large quantities move to mass or continuous production.

Try this

Q1. State the scale of production used to make a single made-to-measure piece of furniture. [1 mark]

  • Cue. One-off (bespoke) production.

Q2. Give one reason mass production gives a low cost per item. [1 mark]

  • Cue. The high tooling and set-up cost is shared over a very large number of identical units.

Exam-style practice questions

Practice questions written in the style of WJEC Eduqas exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.

Eduqas C600 20184 marksExplain the difference between one-off and mass production, and give a product suited to each.
Show worked answer →

A 4-mark question, marks for each scale described with a suitable product.

One-off (bespoke) production makes a single, unique item, usually by hand or by a skilled maker, so it is labour-intensive and expensive per item but fully customisable. A suitable product is a made-to-measure piece of furniture or a prototype.

Mass production makes very large numbers of identical items on a production line, often automated, so the cost per item is low and quality is consistent, but it needs large investment in machinery and cannot be customised. A suitable product is a smartphone or a drinks bottle.

Markers reward both scales described (one-off: single bespoke item, expensive per unit; mass: large numbers, low unit cost, consistent) with a fitting product for each. Describing only one scale caps the mark.

Eduqas C600 20213 marksA company expects to sell 5000 identical garden chairs a year. Explain why batch or mass production would suit this better than one-off production.
Show worked answer →

A 3-mark Explain wants the scale linked to the quantity and unit cost.

5000 identical chairs is a large, repeating quantity of the same design, so one-off production (making each by hand) would be far too slow and expensive per chair.

Batch or mass production makes many identical items using moulds, jigs and machines, so once tooling is set up each chair is made quickly and cheaply, and every chair is consistent. The tooling cost is spread over the 5000 units, giving a low cost per chair.

Markers reward: a large quantity of identical products suits batch or mass production because the tooling and set-up cost is shared over many units, giving fast, consistent, low-cost manufacture. Recommending one-off for 5000 units loses marks.

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