IfcTypeProcess

BACnet MVD

#### IfcTypeProcess

Natural language names

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

Change log

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 | B
--- | --- | --- | --- | --- | ---
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 | B
--- | --- | --- | --- | --- | ---
IfcRoot
1 | GlobalId | IfcGloballyUniqueId |  | Assignment of a globally unique identifier within the entire software world. | X | 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

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 | 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

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

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

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 | 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

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

##### Definitions applying to Design Transfer View

Concept inheritance

# | Concept | Template | Model View
--- | --- | --- | ---
IfcRoot
| Revision Control | Revision Control | Design Transfer View
IfcTypeObject
| Library Association | Library Association | Design Transfer View

##### Definitions applying to BACnet View

Concept inheritance

# | Concept | Template | Model View
--- | --- | --- | ---
IfcRoot
| Revision Control | Revision Control | Design Transfer View
IfcTypeObject
| Library Association | Library Association | Design Transfer View

##### 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

`

References: IfcProcessSelect

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