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Research draft

age of a person

vr.tr.age-of-a-person · XCT.QLT

Let an agent compute and express age correctly, explain legal age thresholds by country, handle age groups and cultural reckoning, and apply age-appropriate and non-discriminatory practice.

Thing Registry Cross-cutting context

Research draft, second pass

A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.

written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify

Researched by: Claude

Purpose and description

Let an agent compute and express age correctly, explain legal age thresholds by country, handle age groups and cultural reckoning, and apply age-appropriate and non-discriminatory practice.

The length of time a person has lived, measured from birth, used to define life stages, age groups and legal thresholds such as school age, voting age, age of majority, eighteen years or older, and retirement age; age is computed differently in some cultures and is a protected characteristic in anti-discrimination law.

What it is for: Identifying life stage and legal eligibility.

It can be compute age from dates; explain legal age thresholds; define age groups for statistics; apply age-related protections.

Distinguishing features

Measured from birth

Defines legal thresholds

Culturally reckoned

Protected characteristic

What it looks like

Not physical; a number of years, months or days.

How it is recognised

Years since birth

Thresholds in law

Biological or developmental age are different measures

Related models

is a kind of - category

duration

is a kind of - category

physical quantity

is related to - quantities

definite-quantity

is protected by - law

anti-discrimination law

In practice

Families and kinds

chronological age

age groups and cohorts

legal age thresholds

East Asian age reckoning

academic and sporting age categories

Standards and regulation

National laws on age of majority and thresholds

Anti-discrimination law on age

Data protection rules for children data

Failure modes and hazards

Off-by-one errors in age calculation

Wrong legal thresholds by country

Age discrimination

Also called

age groupcanonical ageretirement ageacademic ageschool ageeighteen years or olderCrisciutusubjective ageaspirational agemarital majorityrelative ageage limitage of onsetage at deathsport category by agesexarcheEast Asian age reckoningFor all agessocial media age restrictionminimum agemaximum ageprohibitednot recommendedaccompanying adult requiredaccompanying adult recommendedno restrictions or recommendationsrecommendedparental guidance recommendedany agecongenital onsetneonatal onsetinfantile onsetchildhood onsetjuvenile onsetadult onsetlate onset disorder

Where this came from

wikidata · CC0 1.0

Source repository Registry entry point

Drafted structure

Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.

Compute Calculating age.

Dates and rules.

Calculate

From dates.

Calculate

Calculation.

  1. What is the person age today, given their birth date, with correct handling of birthdays and leap years? measurement
  2. Should it be expressed in years, months or days? definition

Reckoning

Cultural systems.

Reckoning

Reckoning.

  1. Does the context use East Asian or other age reckoning? boundary
  2. How is it converted? measurement
Law Legal thresholds.

Thresholds vary.

Thresholds

Ages in law.

Thresholds

Thresholds.

  1. What are the ages of majority, consent, voting, driving and retirement here, according to official sources? provenance
  2. Has the threshold changed recently? provenance

Verification

Age verification.

Verification

Verification.

  1. Which age verification rules apply to this service or purchase? provenance
  2. How is children data protected? provenance
Groups Age groups.

Groups for analysis.

Statistics

Cohorts.

Statistics

Cohorts.

  1. Which age groups does this statistical source use? provenance
  2. How should groups be defined for this analysis? action

Categories

Sport and school.

Categories

Categories.

  1. Which age category applies in this sport or school system, and on which cut-off date? provenance
  2. How is academic age defined? definition
Fairness Age and rights.

Avoid discrimination.

Discrimination

Age discrimination.

Discrimination

Discrimination.

  1. Does this practice discriminate by age unlawfully? boundary
  2. Which exceptions does the law allow? provenance

Appropriate

Age-appropriate content.

Appropriate

Age-appropriate content.

  1. Is the content and interaction appropriate for the person age? boundary
  2. Which safeguards apply for minors? action

What the second pass must settle

  • Should legal thresholds be a separate entry?
  • How should country rules be linked?
  • How should age reckoning systems be recorded?
Draft as JSON