Operations management

• The chapter in one sentence: operations chooses the method, the technology, the environmental standard, the scale, the quality system and the place that together deliver the required output at an average cost the market will support — and every number you calculate has to be turned back into a business judgement.
• Break-even moves with contribution, and contribution is price minus variable cost. So: a higher price or a lower variable cost lowers break-even; a higher fixed cost raises it. But only the variable-cost change improves the position without a demand assumption attached.

• Calculate labour productivity from output and employee numbers, state the unit, and interpret the result for the business.
• Explain why efficiency is important to a business, using a chain that ends at a stated objective rather than at the word “efficient”.
• Explain how a business can increase efficiency — including increasing automation and technology and improving labour skills — and state the investment or risk each carries.
• Explain lean production and how it is achieved through just-in-time inventory control and Kaizen, and state the conditions each depends on.
• State and weigh the advantages and the disadvantages of lean production methods.
• Explain why a business holds inventory, naming raw materials, work in progress and finished goods.
• Explain the factors that affect how much inventory a business holds, and use them to argue for a higher or lower level in a stated case.
• Describe job, batch and flow production.
• State the advantages and disadvantages of job, batch and flow production, and recommend and justify an appropriate method for a given situation.
• Explain how technology is changing production methods through automation and mechanisation, using computer-aided manufacture and 3D printing as worked examples.
• Explain how technology is improving productivity in the service sector, using examples such as contactless payment.
• Evaluate the advantages and disadvantages of a change in technology separately for the business and for its employees, and reach a justified decision.
• Explain how a business can produce more sustainably: renewable energy, using fewer resources and creating less waste, reusing, recycling, developing environmentally friendly products and using environmentally friendly packaging.
• Evaluate the advantages and disadvantages of a business becoming more sustainable, and state the condition that decides whether it is worth doing for the business in the case.
• Classify costs as fixed or variable within a stated context and justify the classification.
• Calculate total variable cost, variable cost per unit, total cost, average cost and revenue, and interpret each result.
• Use cost data to make simple decisions: which product to produce, whether to continue or stop production, what price to set, and which supplier to choose.
• Explain purchasing, marketing, financial, managerial and technical economies of scale, each linked explicitly to average cost.
• Explain diseconomies of scale through poor communication, lack of commitment or loyalty from employees, weak coordination and lack of control.
• Calculate contribution per unit and break-even output, and define, calculate and interpret the margin of safety.
• Complete a partly drawn break-even chart, amend one after a change, and interpret what it shows — including the break-even point, the profit and loss regions and the margin of safety.
• Use break-even analysis to make decisions: the effect of a change in price, in fixed costs and in variable cost per unit.
• Evaluate the limitations of break-even analysis, including why it is not a statement about cash flow.
• Explain what quality means and why it is important for businesses, for goods and for services.
• Explain the concept of quality control and the concept of quality assurance.
• State the advantages and disadvantages of quality control and of quality assurance.
• Recommend and justify whether a stated business should use quality control or quality assurance.
• Explain the factors that influence the location decision of a manufacturing business.
• Explain the factors that influence the location decision of a service business.
• Explain the factors a business could consider when deciding which country to locate its operations in.
• Recommend and justify an appropriate location for a business in a given situation, by weighting factors for that business rather than counting them.

Quality in services is harder, not easier. A service is produced and consumed at the same moment, so a poor one cannot be inspected out before the customer receives it. Its quality also depends heavily on the individual member of staff delivering it, which makes consistency the central difficulty. This is why service businesses invest so heavily in training and standard procedures — they are the only realistic route to prevention.

• “Production and productivity mean the same thing.” Correction Production is total output. Productivity relates that output to the input used to make it. A factory that doubles its workforce and increases output by 50% has raised production and lowered labour productivity.
• “Flow production is the cheapest, so recommend it.” Correction Flow can give a low unit cost at high volume, but it demands heavy capital investment, it is inflexible when demand or design changes, and one breakdown stops the whole line. For a customised or low-volume product it is the wrong method at any price.
• “JIT means the business holds no inventory at all.” Correction Just in time minimises inventory. It does not guarantee zero inventory in every circumstance, and it works only where suppliers are reliable, quality is dependable and demand can be forecast.
• “New technology raises productivity, so it is good for the business.” Correction The syllabus asks for advantages and disadvantages for businesses and for employees, so an answer with only the business side is half an answer. Technology also converts labour, a variable cost, into machinery, a fixed cost: average cost falls only if the extra output is actually sold, and break-even output rises either way.
• “Being more sustainable always costs the business money.” Correction Several sustainable methods reduce cost: using fewer resources and creating less waste cuts materials and disposal cost directly, and reuse and recycling can cut input cost. The genuine disadvantages are the up-front investment, possible higher unit cost of greener materials, and the disruption of changing the process. Argue the case, do not assume the cost.
• “Fixed costs never change.” Correction Fixed costs do not change directly with output within the relevant period and range. Rent rises when the lease is renewed, and it steps up sharply when the business takes a second unit. That is a change in capacity, not a change with output.
• “Closing the product removes its share of fixed cost.” Correction An allocated fixed cost is often unavoidable. If the rent continues after the product is withdrawn, every unit sold at a positive contribution was reducing the loss, and stopping makes the loss larger.
• “Growth guarantees economies of scale.” Correction Growth increases the scale of production; economies of scale are the fall in average cost that may follow. Total cost normally rises as the business grows. If communication and coordination deteriorate, average cost rises instead and the business has diseconomies.
• “Reaching break-even means the business is financially healthy.” Correction Break-even is the output at which total revenue equals total cost, so profit is zero. It measures neither cash flow nor the timing of receipts and payments. A business at break-even that sells on three months’ credit can still fail.
• “Quality control prevents defects.” Correction Quality control detects defects by inspection, usually after the waste has already been created. Quality assurance is the prevention system. Neither makes defects impossible.
• “The lowest-wage country is the lowest-cost location.” Correction Wage per hour is not cost per unit. Low wages with low productivity, long supply lines, tariffs, unreliable power or political instability can raise total cost per unit above the higher-wage alternative.

• The BLADE shape for every extended answer. Build the response, Link it to the case, Analyse the chain of consequence, Decide, and Explain the condition that would change your decision. A developed chain never stops at the first effect. It runs: decision or change → direct operational or market effect → financial or stakeholder consequence → effect on the stated business objective, and then names the condition that could reverse it.
• The unit-cost line is the one that gets misremembered. Flow production has the lowest unit cost at high volume, because its enormous fixed costs are spread across an enormous output. Run the same line at a third of capacity and the unit cost can exceed batch production. Never write “flow production is cheapest” without the volume condition attached.
• Reading a chart in an examination. The syllabus asks you to interpret a given chart, and four things come straight off this one: the break-even point (where the two sloping lines cross), the fixed cost (where the total cost line meets the vertical axis), the profit or loss at a stated output (the vertical gap between the TR and TC lines at that output), and the margin of safety (the horizontal distance from break-even to forecast sales). Label both axes, including the units, before you draw anything.
• They are not alternatives in practice. Most businesses use both: assurance to stop defects arising and a final control check before despatch, particularly where safety matters. An answer that recognises this — and then still commits to which should be the priority for the business in the case — is stronger than one that treats the choice as either-or.
• What separates these from a thin answer. Both used figures from the case rather than general theory; both traced a chain to the stated objective rather than stopping at “profit would rise”; both reached a clear decision; and both named a specific condition that would change that decision. An answer that ends “it depends on the circumstances” without saying which circumstances has not evaluated anything.

• Every candidate takes both papers. Cambridge IGCSE Business 0264 is assessed by two compulsory papers of equal weight, and both may assess content from anywhere in the syllabus. Operations content can appear in either, but it behaves differently in each.
• These are the only command words the syllabus uses, and the meanings in the middle column are the syllabus's own wording. Read the verb before you read anything else, because it fixes the shape of the answer.
• Two pieces of practical advice sit on top of those definitions rather than inside them. For calculate, write the formula and the substitution as well as the answer: if your final figure is wrong, correct method shown on the page is the only thing left to credit. For justify, and for consider where the question asks for a recommendation, reach an actual decision — a balanced survey that stops without one has not supported a case. In the specimen Paper 2 the 12-mark part (b) is a Consider task, so it wants evidence from the insert on both sides and then a supported judgement.