SECAI Core · phase 4 of 15 · noun

Data minimization

In data protection, the principle that only necessary and sufficient personal information can be collected and processed for the stated purpose.

The Explain card

Plain English
Data minimization is the data protection principle that you collect and process only the personal information that is necessary and sufficient for the stated purpose, and nothing extra.
Example
A support chatbot logs conversations for quality review. Minimization means stripping account numbers and addresses from those logs before they are stored or used for training.
Why it matters
Data a model never sees cannot be leaked, memorized or extracted. Minimization shrinks the blast radius of breaches and the legal exposure of training on personal data.
Hook
What you do not collect, you cannot lose.

Word knowledge

How the word is built, where it came from, and what it sits beside in memory.

In a sentence

Before the fine-tuning ingest, data minimization drops date of birth and home address from support-chat logs so those fields never reach the tokenizer.

Why these words
  • data Latin data, things given, plural of datum supplies the given-facts half, so the shrinking applies to records rather than to a physical size
  • minimization English from minimize, from Latin minimus, smallest supplies the shrinking half, so those given facts are reduced rather than merely stored
Where it came from
Origin
English privacy-law collocation from Latin data (things given, plural of datum) and Latin minimus (smallest), via English minimize plus -ation
Entered the language
early 2000s
What changed
Data had meant things given, then facts granted in an argument, then the records a machine keeps. Minimize entered English around 1802 from Latin minimus, smallest, meaning to reduce something as far as it will go, and the noun minimization followed within a few years. US intelligence law of the 1970s already spoke of minimization procedures. Privacy writing of the early 2000s joined data to that shrinking, GDPR later put the British spelling data minimisation on a named article, and the American z spelling of the same pair moved into training-set talk.
How it is spelled
Pattern
data stays the Latin plural of datum, even when English treats it as a mass noun
Pattern
z in -ize and -ization follows Greek -izein, the American spelling
Pattern
min- from Latin minimus, smallest, as in minimum and minus
Breaks the pattern
the noun phrase stays two words; the hyphen appears only when it modifies another noun
Breaks the pattern
data looks plural but computing English often treats it as a mass noun
Breaks the pattern
American minimization writes z, while GDPR's British spelling writes s

Spelled like

  • database
  • minimum
  • optimization
  • organization
Broken into chunks
  • data
    • datum
    • metadata
    • database
  • min
    • minus
    • minimum
    • minor
  • ize
    • organize
    • realize
    • specialize
  • ation
    • information
    • transformation
    • anonymization
What it sits beside

Same subject

Same shape

Data compounds

Minimization compounds

  • risk minimization
  • cost minimization
  • error minimization

GDPR principle family

  • purpose limitation
  • storage limitation
  • collection limitation

Where it sits in the deck

Phase 4: Data Integrity, Governance, and Provenance

Once you know what data is, learn the principles that keep it trustworthy, traceable, and minimized throughout its lifecycle.

Neighbours in this phase