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Methodology · Updated September 2026

How Certyz turns interests and market signals into career guidance.

Certyz keeps personal fit separate from labour-market opportunity. Neither score predicts a student's future or guarantees employment; together they provide a structured starting point for research and discussion.

Personal Match

How closely a career aligns with the student's answers

Personal Match uses the information supplied in the assessment, including career interests, subjects, preferred activities, intended education or training route and current stage.

It is a comparative fit signal within the Certyz catalogue—not an aptitude test, diagnosis or instruction to choose a particular career.

Opportunity

What current market evidence suggests

The production calculation uses the components for which suitable data is available. Current components include advertised vacancy demand and occupation-specific advertised salary data. Aggregate student-interest pressure may also provide competitive context where a mapped sample exists.

Vacancy growth, salary growth, graduate supply and regional employment are included only when the relevant component is available and suitable. Missing components are not silently treated as zero; available weights are rescaled and the report's data-confidence label is reduced.

How to interpret an Opportunity score

More advertised vacancies or stronger market movement can raise the signal. Greater graduate supply or interest pressure can moderate the wider market-balance interpretation. A lower score does not make a career unsuitable, and a higher score is not a promise of a job.

Data sources

What sits behind the market information

Adzuna

Advertised vacancy volumes and occupation-specific advertised salary signals.

View source information

HESA / Jisc

UK higher-education qualifier data used as graduate-supply context at career-pathway level.

View source information

ONS

Official labour-market and earnings context where the dataset is appropriate to the occupation and geography shown.

View source information

Regional interpretation

Regional results use the student's selected work region where suitable coverage exists. National and regional figures should not be treated as equivalent, and sparse coverage is labelled rather than estimated.

Refreshes and dates

Vacancy information is refreshed through the Certyz data pipeline. Each public ranking or report should be read with its displayed snapshot date because advertised-job markets change over time.

Important limitations

Advert counts may contain overlapping searches and are not a count of every available job. Advertised salaries exclude roles without usable salary data. Graduate subject groups do not map perfectly to individual occupations.

Use Certyz as a starting point

Career information and entry requirements change. Students should verify important decisions with official course, apprenticeship, employer, professional-body and National Careers Service information, and discuss their options with a qualified careers professional where possible.

Explore careers See an example report