17 · Production

Production & productivity

Production → creating output
  • Combining inputs to create goods or services.
Productivity → efficiency
  • Output produced from a given input.
  • Labour productivity = output per period ÷ number of employees

Inventory & lean production

Inventory → three forms
  • Raw materials
  • Work in progress
  • Finished goods
JIT · Just-in-time
  • Materials arrive when needed for production.
  • Benefits → lower storage costs; less cash tied up; less waste.
  • Risk → late supplies may stop production.
Kaizen · continuous improvement
  • Small, frequent changes.
  • Employees identify waste, delays and quality problems.
  • Aim → less waste; higher efficiency.

Methods of production

Job → one-off / customised
  • Low volume; high variety.
  • Requires skilled labour.
Batch → groups of identical products
  • Some variety between batches.
  • Changeover time; inventory may rise.
Flow → continuous, standardised stages
  • High volume.
  • High capital cost.
  • A breakdown may stop the whole line.

Technology

Benefits
  • Higher output; fewer mistakes.
  • Consistent quality.
  • Lower labour cost per unit.
Risks & costs
  • High capital cost.
  • Training and redundancy.
  • Breakdown or obsolescence.

Sustainable production

Actions
  • Renewable energy.
  • Less waste; fewer resources.
  • Recycling; environmentally friendly packaging.
Trade-off
  • Better image / sales ↔ potentially higher costs.
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