Data Reference Model

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Author:

Last update:

17 March 2012

Namespace URI:

http://vocab.data.gov/def/drm#

Abstract

A metamodel for government data

All terms at a glance

Overview diagram

This vocabulary has been imported from a file.

Classes

Class: drm:Attribute

AttributeExample: The “SSN” Attribute of a “Person” Entity may have a Data Type of “string” (if hyphens are included with the SSN) or “integer” (if hyphens are not included).

URI:
http://vocab.data.gov/def/drm#Attribute
Superclass:
owl:Thing

Class: drm:Consumer

ConsumerAn entity (person or organization) that consumes data that is supplied by a Supplier.

URI:
http://vocab.data.gov/def/drm#Consumer

Class: drm:DataAccess

Data accessRequests for data services, such as a query of a Data Asset. These requests are supported by Data Access Services

URI:
http://vocab.data.gov/def/drm#DataAccess
Superclass:
owl:Thing

Class: drm:DataAsset

Data assetThe term “data asset” is synonymous with “data source”

URI:
http://vocab.data.gov/def/drm#DataAsset
Properties include:
drm:geospatialEnabled

Class: drm:DataSchema

Data schemaA representation of metadata, often in the form of data artifacts such as logical data models or conceptual data models. The Data Schema concept group is comprised of those concepts pertaining to the representation of structured data. A Data Schema provides a means to provision data sharing services that is independent of the values of the data in the data resource that it describes.

URI:
http://vocab.data.gov/def/drm#DataSchema
Properties include:
drm:defines
Superclass:
drm:StructuredDataResource

Class: drm:DataSteward

Data stewardA person responsible for managing a Data Asset.

URI:
http://vocab.data.gov/def/drm#DataSteward
Properties include:
drm:initialDate
Superclass:
drm:Person

Class: drm:DataType

Data typeA constraint on the type of data that an instance of an Attribute may hold (e.g. "string" or "integer").

URI:
http://vocab.data.gov/def/drm#DataType
Superclass:
owl:Thing

Class: drm:DigitalDataResource

Digital data resourceA digital container of information, typically known as a file. A Digital Data Resource may be one of three specific types of data resources, each corresponding to one of the three types of data described earlier, and each described below (see “Structured Data Resource”, “Semi-Structured Data Resource”, and “Unstructured Data Resource”). It will be a container for the metadata about the data resource.

URI:
http://vocab.data.gov/def/drm#DigitalDataResource
Subclasses:
drm:Document, drm:StructuredDataResource

Class: drm:Document

DocumentWhile a Document can contain structured data, it normally has explanatory material included, which would cause it to therefore be considered semi-structured. It is for this reason that there is no “contains” relationship from Document to Structured Data Resource. It is very important to separate Documents from Structured Data Resources because they are processed very differently. The difference between a Document and a Digital Data Resource, therefore, is that a Digital Data Resource can contained structured data.

URI:
http://vocab.data.gov/def/drm#Document
Superclass:
drm:DigitalDataResource
Subclasses:
drm:UnstructuredDataResource, drm:SemistructuredDataResource

Class: drm:Entity

EntityAn abstraction for a person, place, object, event, or concept described (or characterized) by common Attributes. For example, “Person” and “Agency” are Entities. An instance of an Entity represents one particular occurrence of the Entity, such as a specific person or a specific agency.

URI:
http://vocab.data.gov/def/drm#Entity
Superclass:
owl:Thing
Subclass:
drm:Topic

Class: drm:ExchangePackage

Exchange packageA description of a specific recurring data exchange between a Supplier and a Consumer. An Exchange Package contains information (metadata) relating to the exchange (such as Supplier ID, Consumer ID, validity period for data, etc.), as well as a reference to the Payload (message content) for the exchange. An Exchange Package can also be used to define the result format for a query that is accepted and processed by a Query Point in a data sharing scenario.

URI:
http://vocab.data.gov/def/drm#ExchangePackage
Superclass:
drm:StructuredDataResource

Class: drm:ExternalDataSchema

External data schemaThis is a schema not described using DRM built-in concepts, but just pointed to. For example, XML Schema file

URI:
http://vocab.data.gov/def/drm#ExternalDataSchema
Superclass:
owl:Thing

Class: drm:InternalDataSchema

Internal data schemaThis is the data schema described using DRM built-in concepts

URI:
http://vocab.data.gov/def/drm#InternalDataSchema
Superclass:
owl:Thing

Class: drm:PayloadDefinition

Payload definitionExample: A specific message set expressed as an XML schema or an EDI transaction set that contains information about a “Person” entity.

URI:
http://vocab.data.gov/def/drm#PayloadDefinition
Superclass:
drm:StructuredDataResource

Class: drm:Person

Person

URI:
http://vocab.data.gov/def/drm#Person
Subclass:
drm:DataSteward

Class: drm:QueryPoint

Query pointAn endpoint that provides an interface for accessing and querying a Data Asset. A concrete representation of a Query Point may be a specific URL at which a query Web Service may be invoked.

URI:
http://vocab.data.gov/def/drm#QueryPoint
Superclass:
owl:Thing

Class: drm:Relationship

RelationshipDescribes the relationship between two Entities.

URI:
http://vocab.data.gov/def/drm#Relationship
Superclass:
owl:Thing

Class: drm:SemistructuredDataResource

Semistructured data resourceA Digital Data Resource containing semi-structured data. This will generally consist in part of structured data and in part of unstructured data.

URI:
http://vocab.data.gov/def/drm#SemistructuredDataResource
Superclass:
drm:Document

Class: drm:Stewardship

StewardshipThe concept of managing a data resource

URI:
http://vocab.data.gov/def/drm#Stewardship
Superclass:
owl:Thing

Class: drm:StructuredDataResource

Structured data resourceA Digital Data Resource containing structured data. This data can be accessed in a uniform manner, independent of data values, once the Data Schema is known.

URI:
http://vocab.data.gov/def/drm#StructuredDataResource
Used with:
drm:defines
Superclass:
drm:DigitalDataResource
Subclasses:
drm:PayloadDefinition, drm:ExchangePackage, drm:DataSchema

Class: drm:Supplier

SupplierAn entity (person or organization) that supplies data to a Consumer.

URI:
http://vocab.data.gov/def/drm#Supplier

Class: drm:Taxonomy

TaxonomyA collection of controlled vocabulary terms organized into a hierarchical structure. Taxonomies provide a means for categorizing or classifying information within a reasonably well-defined associative structure, in which each term in a Taxonomy is in one or more parent/child (broader/narrower) relationships to other terms in the Taxonomy.

URI:
http://vocab.data.gov/def/drm#Taxonomy
Superclass:
owl:Thing

Class: drm:Topic

TopicA category within a Taxonomy. A Topic is the central concept for applying context to data. For example, an agency may have a Taxonomy that represents their organizational structure. In such a Taxonomy, each role in the organizational structure (e.g. CIO) represents a Topic. Topic is often synonymous with “node”.

URI:
http://vocab.data.gov/def/drm#Topic
Superclass:
drm:Entity

Class: drm:UnstructuredDataResource

Unstructured data resourceA Digital Data Resource containing unstructured data. Unstructured data is collection of data values that are likely to be processed only by specialized application programs.

URI:
http://vocab.data.gov/def/drm#UnstructuredDataResource
Superclass:
drm:Document

Properties

Property: drm:accesses

accesses

URI:
http://vocab.data.gov/def/drm#accesses

Property: drm:acronym

acronymReference model acronym.

URI:
http://vocab.data.gov/def/drm#acronym
Superproperty:
fea:mnemonic

Property: drm:categorizedBy

categorized by

URI:
http://vocab.data.gov/def/drm#categorizedBy

Property: drm:categorizes

categorizes

URI:
http://vocab.data.gov/def/drm#categorizes

Property: drm:classification

classificationThe security classification for an Exchange Package.

URI:
http://vocab.data.gov/def/drm#classification

Property: drm:constrainedBy

constrained by

URI:
http://vocab.data.gov/def/drm#constrainedBy

Property: drm:contains

contains

URI:
http://vocab.data.gov/def/drm#contains

Property: drm:destination

destination

URI:
http://vocab.data.gov/def/drm#destination
Superproperty:
drm:relates

Property: drm:disseminatedTo

disseminated to

URI:
http://vocab.data.gov/def/drm#disseminatedTo

Property: drm:employeeID

employee iD

URI:
http://vocab.data.gov/def/drm#employeeID

Property: drm:frequency

frequencyThe frequency at which the exchange occurs.

URI:
http://vocab.data.gov/def/drm#frequency

Property: drm:geospatialEnabled

geospatial enabledDesignates whether or not the Data Asset supports or provides Geospatial data.

URI:
http://vocab.data.gov/def/drm#geospatialEnabled
Domain:
drm:DataAsset
Range:
xsd:boolean

Property: drm:hasSchemaElement

has schema elementThis relationship is not explicitly stated in the DRM document. It has been created because there was a need to connect the schema with the entities, relationships, etc.

URI:
http://vocab.data.gov/def/drm#hasSchemaElement

Property: drm:hasStewardship

has stewardship

URI:
http://vocab.data.gov/def/drm#hasStewardship

Property: drm:identifier

identifierThe “Identifier” attribute is described at an abstract level in order to be consistent with the abstract nature of the reference model. Therefore, there are no references to aspects such as identifier uniqueness, representation format, or similar. Implementations based on the DRM will introduce such aspects as needed according to their requirements.

URI:
http://vocab.data.gov/def/drm#identifier

Property: drm:initialDate

initial dateThe date that the Data Steward became associated with the Data Asset.

URI:
http://vocab.data.gov/def/drm#initialDate
Domain:
drm:DataSteward
Range:
xsd:date

Property: drm:isElementOf

is element of

URI:
http://vocab.data.gov/def/drm#isElementOf

Property: drm:locationPointer

location pointerThis is a link to location of a digital resource

URI:
http://vocab.data.gov/def/drm#locationPointer

Property: drm:managedBy

managed by

URI:
http://vocab.data.gov/def/drm#managedBy

Property: drm:manages

manages

URI:
http://vocab.data.gov/def/drm#manages

Property: drm:name

name

URI:
http://vocab.data.gov/def/drm#name

Property: drm:origin

origin

URI:
http://vocab.data.gov/def/drm#origin
Superproperty:
drm:relates

Property: drm:participatesIn

participates in

URI:
http://vocab.data.gov/def/drm#participatesIn

Property: drm:producedBy

produced by

URI:
http://vocab.data.gov/def/drm#producedBy

Property: drm:produces

produces

URI:
http://vocab.data.gov/def/drm#produces

Property: drm:providesManagementContext

provides management context

URI:
http://vocab.data.gov/def/drm#providesManagementContext

Property: drm:queries

queries

URI:
http://vocab.data.gov/def/drm#queries

Property: drm:refersTo

refers to

URI:
http://vocab.data.gov/def/drm#refersTo
Subproperties:
drm:refersToPayload, drm:refersToEntity

Property: drm:refersToEntity

refers to entity

URI:
http://vocab.data.gov/def/drm#refersToEntity
Superproperty:
drm:refersTo

Property: drm:refersToPayload

refers to payload

URI:
http://vocab.data.gov/def/drm#refersToPayload
Superproperty:
drm:refersTo

Property: drm:relates

relates

URI:
http://vocab.data.gov/def/drm#relates
Subproperties:
drm:origin, drm:destination

Property: drm:representedAs

represented as

URI:
http://vocab.data.gov/def/drm#representedAs

Property: drm:returnsResultSetSpecifiedIn

returns result set specified in

URI:
http://vocab.data.gov/def/drm#returnsResultSetSpecifiedIn

Property: drm:worksFor

works for

URI:
http://vocab.data.gov/def/drm#worksFor