Schema for characterizing relationships with roles
This schema provides the most basic classes and slots to qualify
relationships between two things. The connection to the
thing-schema is the qualified_relations
slot, which can be used to qualify relations between things via any number
of Relationship declarations.
Each Relationship links one object (Thing) to a subject (Thing) and
associates one or more roles (Role) with this relationship via the
roles slot.
A Role is itself a Thing, and can be annotated with (inline)
attributes as needed. However, typically it should be sufficient
to reference a role by a URI.
This schema also incorporates the schemas
The schema definition is available as
URI: https://concepts.datalad.org/s/roles/unreleased
Name: roles-schema
Schema Diagram
erDiagram
Role {
uriorcurie id
uriorcurieList broad_mappings
uriorcurieList close_mappings
string description
uriorcurieList exact_mappings
uriorcurieList narrow_mappings
uriorcurieList related_mappings
NodeUriOrCurie schema_type
}
Relationship {
uriorcurie object
}
ThingMixin {
uriorcurieList broad_mappings
uriorcurieList close_mappings
string description
uriorcurieList exact_mappings
uriorcurieList narrow_mappings
uriorcurieList related_mappings
NodeUriOrCurie schema_type
}
ValueSpecificationMixin {
uriorcurie range
string value
}
AttributeSpecification {
uriorcurieList broad_mappings
uriorcurieList close_mappings
string description
uriorcurieList exact_mappings
uriorcurieList narrow_mappings
uriorcurieList related_mappings
NodeUriOrCurie schema_type
uriorcurie range
string value
}
Property {
uriorcurie id
uriorcurieList broad_mappings
uriorcurieList close_mappings
string description
uriorcurieList exact_mappings
uriorcurieList narrow_mappings
uriorcurieList related_mappings
NodeUriOrCurie schema_type
}
Statement {
uriorcurie object
}
Thing {
uriorcurie id
uriorcurieList broad_mappings
uriorcurieList close_mappings
string description
uriorcurieList exact_mappings
uriorcurieList narrow_mappings
uriorcurieList related_mappings
NodeUriOrCurie schema_type
}
ValueSpecification {
uriorcurie range
string value
uriorcurie id
uriorcurieList broad_mappings
uriorcurieList close_mappings
string description
uriorcurieList exact_mappings
uriorcurieList narrow_mappings
uriorcurieList related_mappings
NodeUriOrCurie schema_type
}
Annotation {
uriorcurie annotation_tag
string annotation_value
}
Role ||--}o Thing : "relations"
Role ||--}o Annotation : "annotations"
Role ||--}o AttributeSpecification : "attributes"
Role ||--}o Statement : "characterized_by"
Relationship ||--}| Role : "roles"
ThingMixin ||--}o Annotation : "annotations"
ThingMixin ||--}o AttributeSpecification : "attributes"
ThingMixin ||--}o Statement : "characterized_by"
AttributeSpecification ||--|| Property : "predicate"
AttributeSpecification ||--}o Annotation : "annotations"
AttributeSpecification ||--}o AttributeSpecification : "attributes"
AttributeSpecification ||--}o Statement : "characterized_by"
Property ||--}o Thing : "relations"
Property ||--}o Annotation : "annotations"
Property ||--}o AttributeSpecification : "attributes"
Property ||--}o Statement : "characterized_by"
Statement ||--|| Property : "predicate"
Thing ||--}o Thing : "relations"
Thing ||--}o Annotation : "annotations"
Thing ||--}o AttributeSpecification : "attributes"
Thing ||--}o Statement : "characterized_by"
ValueSpecification ||--}o Thing : "relations"
ValueSpecification ||--}o Annotation : "annotations"
ValueSpecification ||--}o AttributeSpecification : "attributes"
ValueSpecification ||--}o Statement : "characterized_by"
Classes
| Class | Description |
|---|---|
| Annotation | A tag/value pair with the semantics of OWL Annotation. |
| AttributeSpecification | An attribute is conceptually a thing, but it requires no dedicated identifier (id). Instead, it is linked to a Thing via its attributes slot and declares a predicate on the nature of the relationship. |
| Relationship | An association class for characterizing the relation between two things with the role(s) the object had with respect to the subject. A relationship is always between two things only, but can be annotated with multiple roles (for example, a person having both an author role with respect to a dataset, and also being the person who is legally responsible contact for it). |
| Statement | An RDF statement that links a predicate (a Property) with an object (a Thing) to the subject to form a triple. A Statement is used to qualify a relation to a Thing referenced by its identifier. For specifying a qualified relation to an attribute that has no dedicated identifier, use an AttributeSpecification. |
| Thing | The most basic, identifiable item. In addition to the slots that are common between a Thing and an AttributeSpecification (see ThingMixin), two additional slots are provided. The id slot takes the required identifier for a Thing. The relation slot allows for the inline specification of other Thing instances. Such a relation is unqualified (and symmetric), and should be further characterized via a Statement (see characterized_by). From a schema perspective, the relation slots allows for building self-contained, structured documents (e.g., a JSON object) with arbitrarily complex information on a Thing. |
| Property | An RDF property, a Thing used to define a predicate, for example in a Statement. |
| Role | A role is the function of a resource or agent with respect to a subject, in the context of resource attribution or relationships. |
| ValueSpecification | A Thing that is a value of some kind. This class can be used to describe an outcome of a measurement, a factual value or constant, or other qualitative or quantitative information with an associated identifier. If no identifier is available, an AttributeSpecification can be used within the context of an associated Thing (attributes). |
| ThingMixin | Mix-in with the common interface of Thing and AttributeSpecification. This interface enables type specifications (rdf:type) for things and attributes via a type designator slot to indicate specialized schema classes for validation where a slot's range is too generic. A thing or attribute can be further describe with statements on qualified relations to other things (characterized_by), or inline attributes (attributes). A set of mappings slots enables the alignment for arbitrary external schemas and terminologies. |
| ValueSpecificationMixin | Mix-in for a (structured) value specification. Two slots are provided to define a (literal) value (value) and its type (range). |
Slots
| Slot | Description |
|---|---|
| annotation_tag | A tag identifying an annotation |
| annotation_value | The actual annotation |
| annotations | A record of properties of the metadata record on a subject, a collection of t... |
| attributes | Declares a relation that associates a Thing (or another attribute) with an ... |
| broad_mappings | A list of terms from different schemas or terminology systems that have broad... |
| characterized_by | Qualifies relationships between a subject Thing and an object Thing with ... |
| close_mappings | A list of terms from different schemas or terminology systems that have close... |
| description | A free-text account of the subject |
| exact_mappings | A list of terms from different schemas or terminology systems that have ident... |
| id | Persistent and globally unique identifier of a Thing |
| mappings | A list of terms from different schemas or terminology systems that have compa... |
| narrow_mappings | A list of terms from different schemas or terminology systems that have narro... |
| object | Reference to a Thing within a Statement |
| predicate | Reference to a Property within a Statement |
| qualified_relations | Characterizes the relationship or role of an entity with respect to the subje... |
| range | Declares that the value of a Thing or AttributeSpecification are instance... |
| related_mappings | A list of terms from different schemas or terminology systems that have relat... |
| relations | Declares an unqualified relation of the subject Thing to another Thing |
| roles | Describes the function of an entity or agent (object) within the scope of a `... |
| schema_type | State that the subject is an instance of a particular schema class |
| 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 |
| EmailAddress | RFC 5322 compliant email address |
| Float | A real number that conforms to the xsd:float specification |
| HexBinary | hex-encoded binary data |
| 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 |
| NodeUriOrCurie | A type referencing an graph node |
| NonNegativeInteger | An integer |
| 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 |
|---|---|