IfcTypeProcess

Item	SPF	XML	Change	Description
IFC2x3 to IFC4
IfcTypeProcess			ADDED

Semantic definitions at the entity

Entity definition

IfcTypeProcess defines a specific (or type) definition of a process or activity without being assigned to a schedule or a time. It is used to define a process or activity specification, that is, the specific process or activity information that is common to all occurrences that are defined for that process or activity type.

An IfcTypeProcess may have a list of property set attached. Values of these properties are common to all occurrences of that process or activity type. The type occurrence relationship is realized using the objectified relationship IfcRelDefinesByType.

Subtypes of IfcTypeProcess may be exchanged without being already assigned to subtypes of IfcProcess.

HISTORY New entity in IFC4.

Attribute definitions

#	Attribute	Type	Cardinality	Description	G
7	Identification	IfcIdentifier	?	An identifying designation given to a process type.	X
8	LongDescription	IfcText	?	An long description, or text, describing the activity in detail. NOTE The inherited SELF\IfcRoot.Description attribute is used as the short description.	X
9	ProcessType	IfcLabel	?	The type denotes a particular type that indicates the process further. The use has to be established at the level of instantiable subtypes. In particular it holds the user defined type, if the enumeration of the attribute 'PredefinedType' is set to USERDEFINED.	X
	OperatesOn	IfcRelAssignsToProcess @RelatingProcess	S[0:?]	Set of relationships to other objects, e.g. products, processes, controls, resources or actors that are operated on by the process type. HISTORY New inverse relationship in IFC4.	X

Inherited definitions from supertypes

Entity inheritance

Attribute inheritance

#	Attribute	Type	Cardinality	Description	G
IfcRoot
1	GlobalId	IfcGloballyUniqueId		Assignment of a globally unique identifier within the entire software world.	X
2	OwnerHistory	IfcOwnerHistory	?	Assignment of the information about the current ownership of that object, including owning actor, application, local identification and information captured about the recent changes of the object, NOTE only the last modification in stored - either as addition, deletion or modification. IFC4 CHANGE The attribute has been changed to be OPTIONAL.	X
3	Name	IfcLabel	?	Optional name for use by the participating software systems or users. For some subtypes of IfcRoot the insertion of the Name attribute may be required. This would be enforced by a where rule.	X
4	Description	IfcText	?	Optional description, provided for exchanging informative comments.	X
IfcObjectDefinition
	HasAssignments	IfcRelAssigns @RelatedObjects	S[0:?]	Reference to the relationship objects, that assign (by an association relationship) other subtypes of IfcObject to this object instance. Examples are the association to products, processes, controls, resources or groups.	X
	Nests	IfcRelNests @RelatedObjects	S[0:1]	References to the decomposition relationship being a nesting. It determines that this object definition is a part within an ordered whole/part decomposition relationship. An object occurrence or type can only be part of a single decomposition (to allow hierarchical strutures only). IFC4 CHANGE The inverse attribute datatype has been added and separated from Decomposes defined at IfcObjectDefinition.	X
	IsNestedBy	IfcRelNests @RelatingObject	S[0:?]	References to the decomposition relationship being a nesting. It determines that this object definition is the whole within an ordered whole/part decomposition relationship. An object or object type can be nested by several other objects (occurrences or types). IFC4 CHANGE The inverse attribute datatype has been added and separated from IsDecomposedBy defined at IfcObjectDefinition.	X
	HasContext	IfcRelDeclares @RelatedDefinitions	S[0:1]	References to the context providing context information such as project unit or representation context. It should only be asserted for the uppermost non-spatial object. IFC4 CHANGE The inverse attribute datatype has been added.	X
	IsDecomposedBy	IfcRelAggregates @RelatingObject	S[0:?]	References to the decomposition relationship being an aggregation. It determines that this object definition is whole within an unordered whole/part decomposition relationship. An object definitions can be aggregated by several other objects (occurrences or parts). IFC4 CHANGE The inverse attribute datatype has been changed from the supertype IfcRelDecomposes to subtype IfcRelAggregates.	X
	Decomposes	IfcRelAggregates @RelatedObjects	S[0:1]	References to the decomposition relationship being an aggregation. It determines that this object definition is a part within an unordered whole/part decomposition relationship. An object definitions can only be part of a single decomposition (to allow hierarchical strutures only). IFC4 CHANGE The inverse attribute datatype has been changed from the supertype IfcRelDecomposes to subtype IfcRelAggregates.	X
	HasAssociations	IfcRelAssociates @RelatedObjects	S[0:?]	Reference to the relationship objects, that associates external references or other resource definitions to the object.. Examples are the association to library, documentation or classification.	X
IfcTypeObject
5	ApplicableOccurrence	IfcIdentifier	?	The attribute optionally defines the data type of the occurrence object, to which the assigned type object can relate. If not present, no instruction is given to which occurrence object the type object is applicable. The following conventions are used: The IFC entity name of the applicable occurrence using the IFC naming convention, CamelCase with IFC prefix It can be optionally followed by the predefined type after the separator "/" (forward slash), using uppercase If one type object is applicable to many occurrence objects, then those occurrence object names should be separate by comma "," forming a comma separated string. EXAMPLE Refering to a furniture as applicable occurrence entity would be expressed as 'IfcFurnishingElement', refering to a brace as applicable entity would be expressed as 'IfcMember/BRACE', refering to a wall and wall standard case would be expressed as 'IfcWall, IfcWallStandardCase'.	X
6	HasPropertySets	IfcPropertySetDefinition	? S[1:?]	Set ~~list~~ of unique property sets, that are associated with the object type and are common to all object occurrences referring to this object type. IFC2x3 CHANGE The attribute aggregate type has been changed from LIST to SET.	X
	Types	IfcRelDefinesByType @RelatingType	S[0:1]	Reference to the relationship IfcRelDefinedByType and thus to those occurrence objects, which are defined by this type.	X
IfcTypeProcess
7	Identification	IfcIdentifier	?	An identifying designation given to a process type.	X
8	LongDescription	IfcText	?	An long description, or text, describing the activity in detail. NOTE The inherited SELF\IfcRoot.Description attribute is used as the short description.	X
9	ProcessType	IfcLabel	?	The type denotes a particular type that indicates the process further. The use has to be established at the level of instantiable subtypes. In particular it holds the user defined type, if the enumeration of the attribute 'PredefinedType' is set to USERDEFINED.	X
	OperatesOn	IfcRelAssignsToProcess @RelatingProcess	S[0:?]	Set of relationships to other objects, e.g. products, processes, controls, resources or actors that are operated on by the process type. HISTORY New inverse relationship in IFC4.	X

#	Concept	Template	Model View
IfcRoot
	Identity	Software Identity	General Usage
	Revision Control	Revision Control	General Usage
IfcObjectDefinition
	Classification Association	Classification Association	General Usage

Formal representations

XML Specification

 <xs:element name="IfcTypeProcess" type="ifc:IfcTypeProcess" abstract="true" substitutionGroup="ifc:IfcTypeObject" nillable="true"/>

 <xs:complexType name="IfcTypeProcess" abstract="true">

  <xs:complexContent>

   <xs:extension base="ifc:IfcTypeObject">

    <xs:attribute name="Identification" type="ifc:IfcIdentifier" use="optional"/>

    <xs:attribute name="LongDescription" type="ifc:IfcText" use="optional"/>

    <xs:attribute name="ProcessType" type="ifc:IfcLabel" use="optional"/>

   </xs:extension>

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcTypeProcess

 ABSTRACT SUPERTYPE OF(ONEOF(IfcEventType, IfcProcedureType, IfcTaskType))

 SUBTYPE OF (IfcTypeObject);

  Identification : OPTIONAL IfcIdentifier;

  LongDescription : OPTIONAL IfcText;

  ProcessType : OPTIONAL IfcLabel;

 INVERSE

  OperatesOn : SET [0:?] OF IfcRelAssignsToProcess FOR RelatingProcess;

END_ENTITY;

 EXPRESS-G diagram

	Prozess (allgemein) - Typ
	Type Process
	Définition d'un type de processus

IfcTypeProcess

Semantic definitions at the entity

Inherited definitions from supertypes

Definitions applying to General Usage

Formal representations