Practice data provenance vocabulary: provenance chain, external vendor data, immutable audit logs, proving data origin for regulatory purposes, and chain of custody language.
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What does 'data provenance' mean?
Data provenance is the documented history of data's origin, movement, and transformations. It answers: where did this data come from, who touched it, and how was it changed?
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An auditor asks you to prove that sales data 'came from external vendor X on date Y.' What record type supports this?
An immutable audit log records exactly when data was received, from which source, and by whom — providing the evidence needed for regulatory or legal proof of data origin.
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What is a 'provenance chain'?
A provenance chain is the complete, unbroken sequence of records showing every step data has taken — from original source through all transformations — providing full traceability.
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The phrase 'chain of custody' in a data context means:
Chain of custody (borrowed from legal/forensic contexts) means a documented, verifiable record of every person or system that had possession or control of data, ensuring accountability.
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Which regulatory requirement most directly demands proof of data provenance?
GDPR requires organisations to demonstrate that personal data is accurate, lawfully obtained, and properly handled. Data provenance records are essential for proving compliance during audits.