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v2026.11,772 entries · CC-BY 4.0
Dictionary termTrack AStablev2026.2

Data validator

A contributor whose role is to check the integrity, accuracy, completeness, and conformance to schema of a dataset before its use, deposit, or publication — including range checks, plausibility tests, cross-source comparison, and metadata verification.

ByCASRAI Editorial Board
· Last updated 22 Aug 2026
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Examples

Worked examples

  • Is an instance

    A data manager who ran all consistency checks on a clinical trial dataset before lock, named in the trial report's data-management section

Counter-examples

Looks similar, but isn't

  • Not an instance

    A researcher who eyeballs their own data for obvious errors is doing routine self-check, not data validation in the role sense

Editorial commentary

A data validator is a contributor whose role is to check the integrity, accuracy, completeness, and schema conformance of a dataset before it is used, deposited, or published — running range checks, plausibility tests, cross-source comparison, and metadata verification. Under the NISO CRediT Standard (ANSI/NISO Z39.104-2022), this work is captured under the ‘Validation’ role, and often overlaps with ‘Data curation’ where the same contributor also organises and annotates the data being checked.

A research office most often sees the data validator role named explicitly in the contributor statement of a large dataset publication or a clinical dataset’s data-management section — for example, a data manager credited by name for having run consistency checks on a trial dataset before database lock. The role is distinct from a researcher’s own routine self-check of their own results, which is ordinary scientific practice rather than a distinct, creditable contribution: what makes validation a named role is that it is systematic, often independent of data generation, and disclosed as a discrete contribution.

How it relates to nearby CRediT roles

  • vs. Open-data contribution — open-data contribution covers depositing and documenting a dataset for reuse; validation covers checking it is correct, and the two frequently co-occur on the same dataset without being the same task.
  • vs. Statistical consultancy — a statistical consultant advises on analytical method; a data validator checks the data itself, before or independent of any analysis.
  • vs. Reproducibility reviewer — a reproducibility reviewer typically re-runs an analysis pipeline against a finished dataset; a data validator checks the dataset’s own integrity, usually earlier in the workflow.

References

Also known as

Data quality reviewer · Dataset validator

Machine-readable encodings

Use in your systems

JATS XML <role> element
xml
<role vocab="credit"
      vocab-identifier="https://casrai.org/dictionary/"
      vocab-term="Data validator"
      vocab-term-identifier="https://casrai.org/dictionary/term/data-validator" />
Schema.org DefinedTerm (JSON-LD)
json
{
  "@context": "https://schema.org",
  "@type": "DefinedTerm",
  "@id": "https://casrai.org/dictionary/term/data-validator",
  "name": "Data validator",
  "identifier": "https://casrai.org/dictionary/term/data-validator",
  "description": "A contributor whose role is to check the integrity, accuracy, completeness, and conformance to schema of a dataset before its use, deposit, or publication — including range checks, plausibility tests, cross-source comparison, and metadata verification.",
  "inDefinedTermSet": "https://casrai.org/dictionary/domain/credit-extensions#set",
  "url": "https://casrai.org/dictionary/term/data-validator",
  "sameAs": [
    "Data quality reviewer",
    "Dataset validator"
  ],
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "publisher": {
    "@id": "https://casrai.org/#organization"
  },
  "author": {
    "@id": "https://casrai.org/#editorial-team"
  },
  "datePublished": "2026-05-21T01:59:56",
  "dateModified": "2026-08-22T14:11:48",
  "inLanguage": "en-GB",
  "isAccessibleForFree": true
}

Referenced across the research world

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