RealEstateCore Core Module

The default geometry to be used in spatial calculations. It is Usually the most detailed geometry.

GeoSPARQL is Copyright (c) 2012 Open Geospatial Consortium, Inc. All Rights Reserved. http://www.opengeospatial.org/ogc/document.

A spatial representation for a given feature.

GeoSPARQL is Copyright (c) 2012 Open Geospatial Consortium, Inc. All Rights Reserved. http://www.opengeospatial.org/ogc/document.

Links a Building Component to a Space, that the Building Component is either contained in, adjacent to or intersecting with.

Indicates which Building a certain Building Component is part of.

Parthood traversal property linking to mounted Devices.

The measurement unit used by some Device.

Deprecated in favour of qudt:unit

The Quantity Kind that a device measures or affects.

Deprecated in favour of qudt:hasQuantityKind

A unit used to measure some aspect of some Event.

Deprecated in favour of qudt:unit

The Quantity Kind that an event measures or affects.

Deprecated in favour of qudt:hasQuantityKind

Links a Space to a BuildingComponent that is either contained in, adjacent to or intersecting with the Space.

Associates a building with a point in some coordinate reference system which can be used to resolve local (building-specific) coordinates against this outer coordinate reference system.

The unit that something (sensor observations, device capabilities, physical measurements, etc) is measured by. This is given as an object property with a corresponding class (rather than a simple datatype property) since one unit may have many serialized representations and may be used for many different types of measurements.

Deprecated in favour of qudt:unit

has member

Points to sub-entities that share the same base type (i.e., Spaces only have Spaces as parts, Assets only have Assets as parts, etc.).

Links entities that are measurable to the Quantity Kind that they measure, e.g., Temperature, Pressure, etc.

Deprecated in favour of qudt:hasQuantityKind

Parthood traversal property linking a piece of RealEstate to its constituent components (i.e., Buildings and Land).

Parthood traversal property linking BuildingComponents to their constituent sub-components.

Parthood traversal property linking a Device to any sub-Devices that it contains.

Property to model nesting of building components, e.g., rooms within apartments or walls within stairwells, etc.

A property that allows for nesting of devices within devices.

A generic typing relation, holding between individuals and their types (which are also expressed as individuals). This construct allows implementors to add their own types without modifying the ontology and its classes. See the Explicit Typing design pattern in the MODL design library for further discussion.

Indicates the physical hardware asset that a given logical device is hosted and executed on.

Indicates that a given Asset hosts a logical device; e.g., a Raspberry Pi hosts a Home Assistant installation, or an IoT-connect smart camera unit hosts an IoT Edge runtime.

Indicates that an entity is included in some Collection, e.g., a Building is included in a RealEstate, or a Room is included in an Apartment.

Member entities of a collection; e.g., a Campus includes some Space, an Apartment includes some Room, etc.

The entity (Asset, Space, LogicalDevice, etc.) that has this Capability.

Property describing where a Device is mounted.

Property describing in which Building Component (most typically a Room) that a Device is mounted.

Indicates a super-entity of the same base type (i.e., Spaces only have Spaces as parents, Organizations only have Organizations, etc).

Indicates which Building a certain Building Component is part of.

Deprecated in favour of core:componentOfBuilding

Indicates that a Building or a piece of Land belongs to / is part of a given Real Estate.

Generic property indicating which sensors that are configured or designed to observe some feature, system, phenomenon, etc.

Indicates the (optional) entity-of-interest of some sensor, i.e., what it is configured to observe or look for. This allows systems to perform graph propagation of sensor values, e.g., letting a temperature sensor that observes a given room set the temperature for that room.

Property that defines the legal owner(s) of a given entity.

Indicates that an agent is the legal owner of a given entity, e.g., a Company owns some Real Estate.

The entity responsible for generating or producing the event.

Event(s) generated or produced by an entity.

A unit used to specificy some Quantity Kind, such as temperature, pressure, etc.

Deprecated in favour of qudt:unit

Indicates that a Space or Asset is served by some Sensor/Actuator or other Asset. For example: an entrance room might be served by (e.g., covered by) some camera equipment, or a conference room served by a CO2 sensor. Note that Assets can also service one another, e.g., an air-treatment Asset might serve an air diffuser Asset.

The coverage or impact area of a given Asset or Sensor/Actuator. For example: an air-treatment unit might serve several Rooms or a full Building. Note that Assets can also service one another, e.g., an air-treatment Asset might serve an air diffuser Asset.

Indicates how a Device serves an entire Building.

Deprecated in favour of core:servesSpace

Indicates how a Device serves a particular Building Component (e.g., a Room).

Deprecated in favour of core:servesSpace

Indicates how a Device serves another Device.

Deprecated in favour of core:servesAsset

The GML serialization of a geometry.

GeoSPARQL is Copyright (c) 2012 Open Geospatial Consortium, Inc. All Rights Reserved. http://www.opengeospatial.org/ogc/document.

The WKT serialization of a geometry.

GeoSPARQL is Copyright (c) 2012 Open Geospatial Consortium, Inc. All Rights Reserved. http://www.opengeospatial.org/ogc/document.

Connects a geometry object with its text-based serialization.

GeoSPARQL is Copyright (c) 2012 Open Geospatial Consortium, Inc. All Rights Reserved. http://www.opengeospatial.org/ogc/document.

Was originally intented to map an Id in an external system to an instance (e.g. an UUID).

After discussion in REC technical committee, an approach based on owl:sameAs and/or rdfs:seeAlso (depending on the needed semantics) is recommended instead. This property will therefore be removed in future versions.

This parent property groups a number of sub-properties that provide additional richness to building or device model and that are often used in practice in various systems, but which have not yet (REC 3.0) been fully modelled their respecive REC modules.

Indicates a city that a certain Geometry is part of.

Extra information about an object that is of a more exceptional character. E.g. "This Device needs to be replaced no later than 2020", "Note: Black color is used to mark warmwater inlet".

Deprecated in favour of core:comment.

Indicates a country that a certain Geometry is part of.

Measured in ms (milliseconds). Duration is defined as the length of time that something lasts.

The angle between one of the axis of a local coordinate system within e.g. a building and a north-south meridian. The angle is measured between the meridian and the local coordinate axis and counted as positive to the east side of the meridan (neagtive to the west side).

Bearings are never greater than 90°. Bearings are based on true north.

Linking to https://www.geonames.org

E.g. for Stockholm (Sweden): LocationUUID#1 hasGenonames http://www.geonames.org/2673730/stockholm.html

Designation or enumeration commenly found on blueprints for an object. E.g. text designating a Device or a Room.

This property is a cognitive clustering for human consumption, grouping sub-properties that assign labels (e.g., place names, addresses, etc.) to Geometry entities. This branch of the property hierarchy may need some further development and cleaning up in future versions.

Human-readable-friendly name.

Address used for postal delivery.

Time when an object or result was processed in a system.

Indicates a region that a certain Geometry is part of.

Used for information about a source system or data.

Indicates any sustainability certifications that a Building or piece of Real Estate has achieved. This is a stub for now and will likely be more expressively modelled as classes and properties in future REC releases.

Cognitive clustering of time-related properties that can apply to time-indexed objects (i.e., events of various sorts).

Certain time properties are given using xsd:DateTime, i.e., ISO8601 (see below), whereas others are given as ints or floats, depending on use case.

Time format ISO8601:

Complete date, hour, minutes, seconds, and decimal fraction of second

  YYYY-MM-DDThh:mm:ss.sTZD (eg 1997-07-16T19:20:30.45+01:00)

Where: YYYY = 4 numbers for year. MM = 2 numbers for month (01=January, etc.) DD = 2 numbers for day of month (01 till 31) hh = 2 numbers for hour (00 till 23) (am/pm not allowed) mm = 2 numbers for minutes (00 till 59) ss = 2 numbers for second (00 till 59) s = 1 or more numbers represent a decimal fraction of second

TZD = time zone designator (Z or +hh:mm or -hh:mm) Time is expressed in UTC (Coordinated Universal Time), with designated UTC ("Z") for GMT.

REC entities may be associated with values (e.g., Sensors, Setpoints, etc).

Deprecated in favor of core:value.

An address for visiting the Geometry. If a Geometry has multiple visiting addresses, then just add as many hasVistingAddress as needed.

Indicates a certain Geometry's zip code.

Expressed as a string adhering to the notation "(x,y,z)", where x, y, and z ar whole or decimal numbers indicating the position in the local building coordinate system, measured in meters. This relates to the outside world coordinate refence system via the values expressed by GeoReferenceOrigo.

Most recently reported or set value of a core:Capability.

Time when a core:Capability's value was last updated (see core:lastValue).

A number indicating the ordinal number of this level within the building. Note that the implementation of this numbering scheme and its starting point is implementation-specific; e.g., the fifth floor below ground may be 0 in some systems, and -5 in others.

The number of people who can fit in a Space.

The number of people presently occupying a Space.

Reference to the unique identity of the real estate in the property register in the country where the real estate is located.

Indicates a time interval during which something occured, or that something refers to. Intervals are expressed as combinations of some time point and a duration, or as two time points, per ISO 8601; see https://en.wikipedia.org/wiki/ISO_8601.

The syntactical representation of a unit, e.g., m^3 for cubic meter, etc.

REC observations (core:Observation) encapsulate observation values that are serialized using this property.