WDF makes use of the Wolfram Language and the Wolfram Knowledgebase to provide a standardized computable description of real-world constructs and data.

Importing to WDF

SemanticImport — import a file to give WDF

Interpreter — specify how to convert a string to WDF

Basic WDF Constructs

Integer   ▪ Real   ▪ Rational   ▪ Complex   ▪ Interval

Entity — a canonical entity of any type (entered in free form with )

EntityClass — a class of entities of any type

Quantity — a quantity with units

String   ▪ DateObject   ▪ TimeObject   ▪ GeoPosition   ▪ RGBColor   ▪ Missing

CloudObject — a reference to an object in the cloud

Structural Elements

List — a sequence of elements

Association — a collection of elements associated with keys

Dataset — representation of a structured dataset

Compound Data Structures

Graph   ▪ Image   ▪ TimeSeries   ▪ EventSeries   ▪ MeshRegion

Graphics   ▪ Graphics3D   ▪ GeoGraphics   ▪ Sound

External and Custom Entities

CloudObject — a UUID-based reference for a custom entity, property, etc.

Permissions — options defining who can access, update, etc. values for custom entities

Ontology-Related Functions »

CanonicalName — unique canonical name for an entity etc.

CommonName   ▪ EntityTypeName   ▪ EntityProperties   ▪ ...

GeoIdentify   ▪ GeoEntities   ▪ ...

EntityStore — representation of entities, properties, and values for custom types of entities

WDF Storage »

ResourceObject — symbolic representation of WDF data and metadata