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IB Diploma Business Management SL · Operations Management
Mini-Lesson

Operations Management

This mini-lesson covers Unit 5: production methods, quality and lean production, location, capacity and productivity, and break-even in operations decisions.

Work through each screen, answer the questions as you go and collect ⭐ stars. Press Start when you are ready.

Role of operations

Turning inputs into outputs

Operations transforms inputs (materials, labour, capital) into finished goods and services, adding value efficiently. Objectives balance cost, quality, speed, flexibility and dependability.

Concept — sustainability: firms increasingly design circular processes (reduce, reuse, recycle; cradle-to-cradle) to cut waste and environmental impact.

Production methods

Job, batch, flow and mass customisation

How output is organised:

  • Job — one unique item made to order (a tailored suit).
  • Batch — groups of identical items in stages (loaves in a bakery).
  • Flow (mass) — continuous production of identical items (bottling line).
  • Mass customisation — flexible systems give some choice at near mass-production cost.
Sort it

Job, batch or flow?

Tap a product, then the production method it uses.

🔨 Job

📦 Batch

🏭 Flow

Quick check

Job production

?A boatyard builds a single hand-crafted luxury yacht to a customers exact specification. This is:
Break-even in operations

Contribution and break-even output

Operations managers use break-even to judge whether an output level is viable. Contribution per unit = price − variable cost, and break-even = fixed costs ÷ contribution per unit.

Calculate

Break-even output

1A workshop has fixed costs of 12,000 dollars. Each unit sells for 20 dollars with a variable cost of 12 dollars. Calculate the break-even output.
units
Hint: contribution = 20 − 12 = 8; break-even = fixed costs ÷ contribution = 12,000 ÷ 8.
Location

Choosing where to produce

Location factors: proximity to market, raw materials and labour; costs (land, wages); infrastructure; government incentives; and clustering near similar firms. Firms may offshore, reshore, outsource or insource to cut cost or improve control.

Quick check

Location factor

?A heavy-steel manufacturer locates right next to the iron-ore mine it depends on. Its main location factor is proximity to:
Capacity and productivity

Using resources efficiently

Capacity utilisation = (actual output ÷ maximum possible output) × 100. High utilisation spreads fixed costs over more units (economies of scale); very high utilisation risks strain and no room for orders. Labour productivity = output ÷ number of workers.

Calculate

Capacity utilisation

2A plant can make 4,800 units a week but actually makes 3,600. Calculate its capacity utilisation.
%
Hint: capacity utilisation = (actual output ÷ maximum output) × 100 = (3,600 ÷ 4,800) × 100.
Calculate

Labour productivity

3The same plant makes 4,800 units with 16 workers. Calculate labour productivity (output per worker).
units
Hint: labour productivity = total output ÷ number of workers = 4,800 ÷ 16.
Economies of scale

Why bigger can be cheaper

As output rises, average (unit) cost often falls thanks to economies of scale: bulk buying, specialisation of labour and machinery, and spreading fixed costs over more units. Grow too large, though, and diseconomies of scale creep in — communication and coordination problems and weaker motivation — pushing unit costs back up.

Lean production and quality

Cutting waste, assuring quality

Lean production reduces waste. Kaizen means continuous small improvements; just-in-time (JIT) delivers stock only as needed, cutting storage costs but relying on dependable suppliers. Quality control inspects finished output; quality assurance builds quality in at every stage to prevent defects. Poor quality means recalls, waste and lost trust.

Quick check

JIT stock

?A benefit of just-in-time (JIT) stock control is that it:
Match it

Match the operations term to its meaning

Tap a term on the left, then its meaning on the right.

Term
Meaning
Quick check

Quality assurance vs control

?Which best describes quality assurance?
Recap

The big ideas to know

Operations: transform inputs to outputs, adding value; sustainability and circular design.

Methods: job, batch, flow, mass customisation.

Break-even: contribution = price − variable cost; break-even = fixed costs ÷ contribution.

Location: market, materials, labour, cost, infrastructure; offshoring/reshoring.

Efficiency: capacity utilisation and labour productivity; lean, Kaizen, JIT; quality assurance vs control.

You have covered Unit 5. Press Finish to see your score.

🏆

Mini-lesson complete!

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