OxfordAQA A-Level Business: Operational performance (9725)

This guide follows the OxfordAQA International AS and A-level Business (9725) specification, Version 1.1, for International AS exams from May/June 2027. It covers section 3.2.1 Operational performance: 3.2.1.1 Operations management, 3.2.1.2 Operations competitiveness and 3.2.1.3 Inventory and supply chain management. All of it is International AS content, assessed in Unit 2: Managing operations, human resources and finance. If you are finishing the older 9625 specification, use your own specification instead.

Recall: revision notes · Test yourself: practice questions · Course hub: OxfordAQA A-Level Business · Checklist: 9725 checklist · Find your gaps: free diagnostics

What this topic covers

Spec section	What you must be able to do
3.2.1.1 Operations management	Calculate operations objectives; explain flexibility, environmental objectives and trade-offs; compare processes
3.2.1.2 Operations competitiveness	Capacity, make or buy, matching supply to demand, efficiency, productivity, lean production, customer service, quality, wider issues
3.2.1.3 Inventory and supply chain management	Inventory, control charts, JIT versus JIC, sourcing, supply chain issues, transparency and accreditation

Unit 2 includes a section of calculation questions, so learn the formulas below. They match the specification’s Appendix: Formulae and Key data.

3.2.1.1 Operations management

Operations objectives you must calculate

Measure	Formula
Total costs	total fixed costs + total variable costs
Unit cost	total costs ÷ output
Waiting times	total waiting time ÷ number of customers
Delivery times	total delivery time ÷ number of deliveries
Proportion of returned items (%)	number of returned items ÷ number of sold items × 100
Proportion of defects (%)	number of defective items ÷ number of items produced × 100
Labour productivity	output in a period ÷ average number of employees in the period
Capacity	maximum potential output
Capacity utilisation (%)	actual output ÷ maximum potential output × 100

Worked example 1. Corran Bakehouse (an invented business) has monthly fixed costs of £18,000 and a variable cost of £0.45 per loaf. In March it baked 24,000 loaves. Its ovens can bake at most 30,000 loaves a month. It employs 12 bakers on average, and 360 loaves were rejected as defective.

Total costs   = 18,000 + (0.45 × 24,000) = 18,000 + 10,800 = £28,800
Unit cost     = 28,800 ÷ 24,000 = £1.20 per loaf
Capacity utilisation = 24,000 ÷ 30,000 × 100 = 80%
Labour productivity  = 24,000 ÷ 12 = 2,000 loaves per baker per month
Defects       = 360 ÷ 24,000 × 100 = 1.5%

In April a supermarket order lifts output to 27,000 loaves with the same 12 bakers working overtime.

Total costs   = 18,000 + (0.45 × 27,000) = 18,000 + 12,150 = £30,150
Unit cost     = 30,150 ÷ 27,000 = £1.12 per loaf (to the nearest penny)
Capacity utilisation = 27,000 ÷ 30,000 × 100 = 90%
Labour productivity  = 27,000 ÷ 12 = 2,250 loaves per baker

Unit cost falls because fixed costs are spread over more loaves, but at 90% there is little spare capacity for a rush order.

Service measures work the same way: 1,840 minutes spent on 80 deliveries gives an average delivery time of 1,840 ÷ 80 = 23 minutes; 175 returns from 2,500 items sold is 175 ÷ 2,500 × 100 = 7%.

Other objectives and trade-offs

• Flexibility: the ability to change the volume or the type of output quickly, for example switching product lines or meeting a sudden order.
• Environmental objectives: targets such as lower energy use, less waste or a smaller carbon footprint.

Objectives conflict. Faster response needs spare capacity or extra inventory, which raises costs; cutting emissions may need costly equipment. Objectives also vary with context: a discount retailer stresses low unit costs, a fashion brand speed and flexibility.

Operations processes

Process	Advantages	Disadvantages
Job (one-off, made to order)	Meets exact customer needs; high prices possible; varied work can motivate	High unit costs; skilled labour needed; slow
Batch (groups of identical items, then switch)	Some variety; lower unit costs than job; equipment shared	Downtime when changing batches; inventory builds up between stages
Flow (continuous production of a standard product)	Lowest unit costs at high volume; can be automated; consistent quality	Inflexible; high set-up cost; repetitive work; one breakdown stops the line
Mass customisation (flow-style systems that tailor each item)	Personalised products at near-flow cost; can charge a premium	Complex technology and ordering systems; costly to set up

Labour-intensive processes rely mainly on people: flexible, less capital needed, good for personal services, but higher labour cost per unit and variable quality. Capital-intensive processes rely mainly on machinery: low unit costs at volume and consistent quality, but heavy investment, inflexible, and idle when demand falls.

3.2.1.2 Operations competitiveness

Capacity

High capacity utilisation spreads fixed costs and lowers unit cost, but near 100% there is no room for extra orders or maintenance and staff may be overstretched. Low utilisation gives flexibility and room to grow, but raises unit costs and may signal weak demand.

Making versus buying. Making in-house keeps control over quality, design and timing, and protects know-how. Buying from another business can be cheaper, needs no capital and gives access to specialist skills, but you depend on the supplier and lose some control over quality and delivery.

Matching supply to demand (for seasonal, cyclical or fluctuating demand):

Method	Advantage	Disadvantage
Increase or decrease output	Uses existing resources	Overtime is costly; cutting output can leave staff idle
Increase or decrease inventory	Build stock in quiet periods to sell at peaks	Storage costs; perishable or fashion items may spoil or date
Outsourcing	Extra capacity without investment	Less control over quality; margins shared
Flexible labour (temporary, part-time, agency, zero hours contracts)	Labour cost follows demand	Less training and commitment; possible ethical criticism
Increase or decrease capacity	Long-term fit with demand	Expensive; slow; hard to reverse

Mismatches cost money: too little supply loses sales and customers; too much leaves unsold inventory, idle resources and high unit costs.

Efficiency and productivity

Efficiency means producing output with the fewest resources. It lowers unit costs, allowing lower prices or higher margins. Ways to increase it: better equipment, lean methods, better layout, training. Difficulties: investment cost, staff resistance, and risk to quality if speed is pushed.

Labour productivity is output per employee. It matters most where labour is a large share of costs. Ways to raise it: training, equipment, better methods, motivation. Difficulties: cost, output that is hard to measure in services, resistance to change, and possible loss of quality.

Lean production

Lean production aims to cut waste of every kind. The specification lists four elements:

• Just in Time (JIT): supplies arrive just when needed, so little inventory is held.
• Kaizen: continuous improvement through many small changes suggested by staff.
• Standardised processes: everyone does a task the same, best-known way.
• Teamwork: teams share responsibility and solve problems.

Benefits: lower inventory costs, less waste, faster response, and staff involvement that can lift quality and motivation. Difficulties: dependence on reliable suppliers, little buffer against disruption, training costs, slow culture change.

Customer service

Good customer service builds loyalty, repeat sales and recommendations, and can justify higher prices. To improve it: understand customer needs, improve the customer experience, benchmark, train staff, reward loyalty, and monitor and act on feedback and satisfaction levels.

Quality

Quality means meeting customer requirements consistently; it affects reputation, price and costs. Measure it through defect rates, returns, complaints and satisfaction surveys. Methods of improving it:

• Quality control: inspecting output to find faults, usually at the end of the process.
• Quality assurance: building checks into every stage to prevent faults.
• Total quality management (TQM): every employee takes responsibility for quality, all the time.
• Quality circles: small groups of staff meet regularly to solve quality problems.
• Benchmarking: comparing your processes with the best performers and adopting what works.

Benefits of improving quality: fewer returns, a stronger brand, premium prices. Difficulties: training costs, slower output, time to change culture. Costs of poor quality: scrap and rework, refunds, lost customers, damaged reputation, possible legal claims.

The importance of operations management

• Technology: online businesses, better links with customers and suppliers, and computerised inventory control speed up ordering and cut errors.
• Ethical issues: product safety, and environmental concerns such as how resources are sourced.
• Environmental issues: pollution and carbon footprint.
• Competitiveness: low unit costs allow lower prices; quality, speed and flexibility allow differentiation.
• Links to other functions: operations needs marketing’s demand forecasts, finance’s budgets and HR’s skilled staff. See the marketing study guide for the demand side.

3.2.1.3 Inventory and supply chain management

Holding inventory

Businesses hold inventory to meet unexpected demand, cover late deliveries, gain bulk discounts and keep production running. The amount depends on demand predictability, lead times, storage costs, the risk of perishing or dating, cash available and the approach used (JIT or JIC).

Inventory control charts

An inventory control chart plots inventory level against time. Its key lines and terms:

• Lead time: time between placing an order and receiving it.
• Buffer stock: the minimum level kept as a safety margin.
• Re-order level: inventory level at which a new order is placed.
• Re-order quantity: the amount ordered each time.

Worked example 2. Harbourne Hardware (invented) sells 150 tins of paint a week. It keeps a buffer stock of 200 tins, has a maximum level of 1,100 tins, and its supplier’s lead time is 2 weeks.

Re-order level    = buffer + (weekly usage × lead time) = 200 + (150 × 2) = 500 tins
Re-order quantity = maximum − buffer = 1,100 − 200 = 900 tins

End of week	0	1	2	3	4	5	6
Inventory (tins)	1,100	950	800	650	500	350	200

The order is placed at the end of week 4, when inventory hits 500. It arrives at the end of week 6, just as inventory reaches the buffer of 200, and lifts it back to 1,100.

Amending the chart. If sales rise to 200 tins a week from week 5, inventory falls to 300 (week 5) and 100 (week 6): 100 tins into the buffer before the delivery, which then lifts it only to 1,000. The fix is a higher re-order level or quantity.

JIT versus JIC

Just in Time	Just in Case
Minimal inventory; lower storage costs and less cash tied up	Large inventory as a safety margin
Needs reliable suppliers and short lead times	Protects against disruption and sudden demand
Risk of stopping if one delivery fails	Higher storage costs; risk of waste or obsolescence

Effective inventory control avoids both stock-outs (lost sales, idle production) and excess stock (cash tied up, storage and waste).

Supply chain management

Supply chain management coordinates the flow from suppliers to customers, including supplier relationships and logistics in and out. Done well, it cuts costs and improves reliability and quality.

Influences on sourcing include price, quality, reliability, lead time, location and ethics. One supplier means a close relationship and possible discounts, but exposure if it fails; several spread risk but weaken each relationship.

Supply chain issues such as delays, shortages or a supplier’s failure can halt production, raise costs and damage reputation.

Supply chain transparency means knowing, and often publishing, where inputs come from and how they are produced. Third-party accreditation means an independent body certifies that a supplier meets set standards. Both help a business check ethical and environmental claims, reassure customers and reduce the risk of scandal.

Common errors

• Dividing total costs by capacity instead of actual output when finding unit cost.
• Using the number of employees at the end of the year instead of the average.
• Forgetting the ×100 in capacity utilisation, returns or defects.
• Confusing re-order level (a level of inventory) with re-order quantity (an amount ordered).
• Treating quality control and quality assurance as the same thing.

Next: revision notes, practice questions and exam preparation for 9625 and 9725.

Official syllabus

OxfordAQA International AS and A-level Business (9725) specification, Version 1.1, for International AS exams May/June 2027 onwards and International A-level exams May/June 2028 onwards, published by OxfordAQA. Section 3.2.1 Operational performance.