Attributes

An attribute is a characteristic that can be attributed to an entity (e.g. Street name).

Existing types:

A Serial number is a combination of text and numbers to be used to uniquely refer to something Text
A ISO 3166 Numberic code is a numeric code as used in ISO 3166 (https://www.iso.org/iso-3166-country-codes.html) Text System type (cannot change)
A ISO 3166 Alpha-3 code is a three letter code as used in ISO 3166 (https://www.iso.org/iso-3166-country-codes.html) Text System type (cannot change)
A ISO 3166 Alpha-2 code is a two letter code as used in ISO 3166 (https://www.iso.org/iso-3166-country-codes.html) Text System type (cannot change)
A Amount is a number or sum Number
A Time unit is a unit for measuring time periods Text
A Maintenance closed is a state in which maintenance is finished and delivered the desired outcome Boolean
A Note is a brief record, especially one written down to aid the memory Text
A Description is a text to be used to describe something Text System type (cannot change)
A Name is a text to be used to refer to something Text System type (cannot change)
A Day is a 24-hour period during which the earth completes one rotation on its axis, traditionally measured from midnight to midnight Number System type (cannot change)
A Month is a unit of time corresponding approximately to one cycle of the moon's phases, or about 30 days or 4 weeks Number System type (cannot change)
A Year is a period of time during which Earth completes a single revolution around the sun, consisting of 365 days, 5 hours, 49 minutes, and 12 seconds of mean solar time Number System type (cannot change)
A Country name is a short name in lower case of a country as used in ISO 3166 (https://www.iso.org/iso-3166-country-codes.html) Text System type (cannot change)