science

National Occupational Classification

National Occupational Classification 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 National Occupational Classification rather than just read about it. In short: National Occupational Classification, or NOC, is a systematic taxonomy of all occupations in the Canadian labour market. As a Canadian government publication it is concurrently published in French as Classification nationale des professions.

Key takeaways

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

Reference excerpt

National Occupational Classification, or NOC, is a systematic taxonomy of all occupations in the Canadian labour market. As a Canadian government publication it is concurrently published in French as Classification nationale des professions. The NOC a joint project between Employment and Social Development Canada (ESDC) and Statistics Canada and classifies over 30,000 occupational titles into 500 Unit Groups, organized according to 4 skill levels and 10 skill types. The NOC is used by students, workers, employers, career and vocational counsellors, educational and training organizations. The first Edition of the NOC was published in 1992, and a Second Revised Edition was offered in 2001. Further minor revisions were made in 2006. The 2011 revision combined the variation National Occupational Classification for Statistics (NOC-S) and the 2006 NOC version into one system with structural changes. The 2016 revision was minor and the NOC content is now continually updated; however its structure is set to be revised every 10 years. It is available online. The 2021 version will be a structural revision. The NOC supersedes the Canadian Classification Dictionary of Occupations (CCDO), which was published by the then Human Resources and Skills Development Canada (HRSDC) (now ESDC) in 1981.

References

External links National Occupational Classification Employment and Social Development Canada

Illustrations

Worked examples

Example 1 — a first encounter with National Occupational Classification

Start with the simplest possible case. Write down what National Occupational Classification 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 National Occupational Classification 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 National Occupational Classification 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 National Occupational Classification

In research: National Occupational Classification 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 National Occupational Classification 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: National Occupational Classification is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1992 establishments in Canada, Canada government stubs, Employment and Social Development Canada, so understanding it makes those chapters shorter.
In everyday life: Look for National Occupational Classification 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 National Occupational Classification in 20 minutes

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

Frequently asked questions

What is National Occupational Classification in simple terms?

Why does National Occupational Classification 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 National Occupational Classification?

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 National Occupational Classification.