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Job production

Job production is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Job production rather than just read about it. In short: Job production, sometimes called jobbing or one-off production, involves producing custom work, such as a one-off product for a specific customer or a small batch of work in quantities usually less than those of mass-market products. Job production consists of an operator or group of operators working on a single job and completing it before proceeding to the next similar or different job.

Job production — main illustration
Job production — illustration

Key takeaways

  • Job production belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Job production to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Job production from memory before moving on to harder problems.

Reference excerpt

Job production, sometimes called jobbing or one-off production, involves producing custom work, such as a one-off product for a specific customer or a small batch of work in quantities usually less than those of mass-market products. Job production consists of an operator or group of operators working on a single job and completing it before proceeding to the next similar or different job. Together with batch production and mass production (flow production) it is one of the three main production methods. Job production can be classical craft production by small firms (making railings for a specific house, building/repairing a computer for a specific customer, making flower arrangements for a specific wedding etc.), but large firms use job production, too, and the products of job production are often interchangeable, such as machined parts made by a job shop. Examples include:

Designing and implementing an advertising campaign Auditing the accounts of a large public limited company Building a new factory Installing machinery in a factory Machining a batch of parts per a CAD drawing supplied by a customer Building the Golden Gate bridge Fabrication shops and machine shops whose work is primarily of the job production type are often called job shops. The associated people or corporations are sometimes called jobbers. Job production is, in essence, manufacturing on a contract basis, and thus it forms a subset of the larger field of contract manufacturing. But the latter field also includes, in addition to jobbing, a higher level of outsourcing in which a product-line-owning company entrusts its entire production to a contractor, rather than just outsourcing parts of it.

Benefits and disadvantages Key benefits of job production include:

can provide emergency parts or services, such as quickly making a machine part that would take a long time to acquire otherwise can provide parts or services for machinery or systems that are otherwise not available, as when the original supplier no longer supports the product or goes out of business (orphaned) work is generally of a high quality a high level of customization is possible to meet the customer's exact requirements significant flexibility is possible, especially when compared to mass production workers can be easily motivated due to the skilled nature of the work they are performing Disadvantages include:

higher cost of production re-engineering: sometimes engineering drawings or an engineering assessment, including calculations or specifications, needs to be made before the work can be done requires the use of specialist labor (compared with the repetitive, low-skilled jobs in mass production) slow compared to other methods (batch production and mass production)

Essential features There are a number of features that should be implemented in a job production environment, they include:

Clear definitions of objectives should be set. Clearly outlined decision making process. Clear list of specifications should be set.

See also Instant manufacturing Just in Time Lean manufacturing Manufacturing Piece work Outline of industrial organization

References

Illustrations

Job production illustration
Job production: Hand-separated large candlestick church chandelier with brass wax drip tray – GDR around 1980 – Use of armoured steel and brass – Single piece – Weight 10 kilograms
Hand-separated large candlestick church chandelier with brass wax drip tray – GDR around 1980 – Use of armoured steel and brass – Single piece – Weight 10 kilograms

Worked examples

Example 1 — a first encounter with Job production

Start with the simplest possible case. Write down what Job production claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Job production before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Job production ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Job production

In research
Job production appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Job production in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Job production is common in secondary-school and first-year university syllabi. It links to neighbouring topics Methods of production, so understanding it makes those chapters shorter.
In everyday life
Look for Job production outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Job production in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Job production means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Job production out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Job production in simple terms?

Job production, sometimes called jobbing or one-off production, involves producing custom work, such as a one-off product for a specific customer or a small batch of work in quantities usually less than those of mass-market products. Job production consists of an operator or group of operators work…

Why does Job production matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Job production?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Job production.

Tags

  • Methods of production

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