Attribute
Describes some aspect of an entity.
Has
- A name
- A simple type (e.g. number, string).
Examples
- Person name: string
- Profile name: string
- Product price: fixed-point
- Order date: date
- Shipment cost: fixed-point
Counter-examples
- Set of profiles; set is not a simple type, neither is Profile.
- Single thing, but Timeline is not a simple type.
- ??? Isn't a date non-simple? (year, month, day, hour, minute, second, timezone)
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