Person birthdate and age in StudentShape

[philbarker]

We have agreed to use ceds:BirthDate

We agree to drop the following

• age

Look at how to keep

• birth day
• birth year (e.g. with BirthDate to lower precision)

Do we keep:

• birthCity
• birthStateProvinceCode
• birthCountry

CEDS has birthCIty (CityOfBirth) and birthCountry (CountryOfBirthCode), StateOfBirthAbbreviation --the latter is problematic for people born outwith the US.

(Issue transferred from https://github.com/philbarker/transcript_jsonld/issues/9)

[philbarker]

It seems it is not legit to have values like ceds:BirthDate "1966"^^xsd:date, according to https://www.w3.org/TR/xmlschema-2/#date:

The ·lexical space· of date consists of finite-length sequences of characters of the form: '-'? yyyy '-' mm '-' dd zzzzzz? where the date and optional timezone are represented exactly the same way as they are for dateTime.

i.e the - (for BC) and zzzzzz (for timezone) are the only optional parts.

While values like 1966 and 1966-06 are valid by ISO 8601, they have distinct datatypes in xsd: such as xsd:gYear.

Options:

1. Create pesc: properties for birthYear and birthDay (and lobby CEDS to adopt them)
2. Depart from CEDS by allowing gYear and gDay as datatypes for ceds:BirthDate (and lobby CEDS to follow suit)
3. Drop these properties

[philbarker]

ceds:hasCountryOfBirth can be used for birthCountry.

stateOfBirthAbbreviation doesn't seem to be in the draft CEDS ontology. It also doesn't cover non-US births

cityOfBirth also doesn't seem to be in CEDS ontology.

[philbarker]

Decisions:

• drop age
• keep birthday (day+month)
• keep birthyear (YYYY)
• keep birthdate as ceds: property
• keep the three birth location properties