Schema for a generic data description
This schema provides a generic Thing concept as a basic building block.
Key concepts of this schema are that any Thing
- must be given a unique identifier (
id) for referencing in metadata records, separate from any other identifier(s) that may apply to aThing(identifier) - can be described using generic properties without prescribing a particular vocabulary, such type (
type), equivalence (same_as), and topic (is_about) - a dedicated
meta_typeslot enables the distinction of the semantic type of aThingfrom the type of data structure used to represent theThingin a particular data record
Moreover, qualitative (Property) and quantitative (QuantitativeProperty) properties can be assigned to a Thing (has_property), again without prescribing a particular vocabulary.
Available as
URI: https://concepts.datalad.org/s/thing/unreleased
Name: thing-schema
Schema Diagram
erDiagram
Thing {
uriorcurie id
uriorcurieList conforms_to
string description
uriorcurieList is_about
uriorcurie meta_type
string name
uriorcurieList same_as
string title
uriorcurie type
}
Identifier {
string notation
}
Characteristic {
string description
uriorcurie is_defined_by
string name
string title
uriorcurie type
uriorcurie range
string value
}
Property {
uriorcurie meta_type
string description
uriorcurie is_defined_by
string name
string title
uriorcurie type
uriorcurie range
string value
}
QuantitativeProperty {
uriorcurie unit
uriorcurie meta_type
string description
uriorcurie is_defined_by
string name
string title
uriorcurie type
uriorcurie range
string value
}
Thing ||--}o Identifier : "identifier"
Thing ||--}o Property : "has_property"
Identifier ||--|o Thing : "schema_agency"
Classes
| Class | Description |
|---|---|
| Characteristic | An inherent quality, function, disposition or process characteristic. |
| Property | An inherent quality, function, disposition or process characteristic that is being observed or measured. |
| QuantitativeProperty | An inherent quantitative property that is being observed or measured. |
| Identifier | Identifier. |
| Thing | The most basic item. |
Slots
| Slot | Description |
|---|---|
| conforms_to | An established standard to which the subject conforms |
| description | A free-text account of the thing |
| has_property | Relation between a subject and a quality, capability or role that it bears |
| id | Globally unique identifier of a metadata object |
| identifier | An unambiguous reference to the subject within a given context |
| is_about | A relation of an information artifact to a thing |
| is_defined_by | The definition of the subject thing |
| meta_type | Type designator of a metadata object for validation and schema structure hand... |
| name | Name of a thing |
| notation | String of characters such as "T58:5" or "30:4833" used to uniquely identify a... |
| range | State that the values of a property are instances of a class |
| same_as | Property that determines that subject and object are equal |
| schema_agency | Name of the agency that issued an identifier |
| title | A summarily description of a thing |
| type | State that the subject is an instance of a class |
| unit | A unit of measurement is a standardized quantity of a physical quality |
| value | Value of a thing |
Enumerations
| Enumeration | Description |
|---|---|
Types
| Type | Description |
|---|---|
| Boolean | A binary (true or false) value |
| Curie | a compact URI |
| Date | a date (year, month and day) in an idealized calendar |
| DateOrDatetime | Either a date or a datetime |
| Datetime | The combination of a date and time |
| Decimal | A real number with arbitrary precision that conforms to the xsd:decimal speci... |
| Double | A real number that conforms to the xsd:double specification |
| Float | A real number that conforms to the xsd:float specification |
| Integer | An integer |
| Jsonpath | A string encoding a JSON Path |
| Jsonpointer | A string encoding a JSON Pointer |
| Ncname | Prefix part of CURIE |
| Nodeidentifier | A URI, CURIE or BNODE that represents a node in a model |
| Objectidentifier | A URI or CURIE that represents an object in the model |
| Sparqlpath | A string encoding a SPARQL Property Path |
| String | A character string |
| Time | A time object represents a (local) time of day, independent of any particular... |
| Uri | a complete URI |
| Uriorcurie | a URI or a CURIE |
Subsets
| Subset | Description |
|---|---|