IfcProjectOrder

标签：relationship object IfcProjectOrder part decomposition subtypes type

IfcProjectOrder

实体定义

项目订单是购买产品和/或执行工作的指令，例如用于施工或设施管理。

 

项目订单通常是两个组织之间的正式合同，根据包含的时间表类型和限制，成本和时间信息可能是刚性的或灵活的。

 

IFC2.0中的新实体

IFC4 修改属性ID重命名为Identification，并提升为超类型IfcControl。添加了属性“LongDescription”

 

 

Attribute definitions

#	Attribute	Type	Cardinality	Description	C
7	PredefinedType	IfcProjectOrderTypeEnum	[0:1]	Predefined generic type for a project order that is specified in an enumeration. There may be a property set given specificly for the predefined types.	X
8	Status	IfcLabel	[0:1]	The current status of a project order.Examples of status values that might be used for a project order status include: PLANNED REQUESTED APPROVED ISSUED STARTED DELAYED DONE	X
9	LongDescription	IfcText	[0:1]	A detailed description of the project order describing the work to be completed.	X

 

 

 

 

Attribute inheritance

#	Attribute	Type	Cardinality	Description	C
IfcRoot
1	GlobalId	IfcGloballyUniqueId	[1:1]	Assignment of a globally unique identifier within the entire software world.	X
2	OwnerHistory	IfcOwnerHistory	[0:1]	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.	X
3	Name	IfcLabel	[0:1]	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	[0:1]	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).	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).	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.	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).	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).	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
IfcObject
5	ObjectType	IfcLabel	[0:1]	The type denotes a particular type that indicates the object 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
	IsDeclaredBy	IfcRelDefinesByObject @RelatedObjects	S[0:1]	Link to the relationship object pointing to the declaring object that provides the object definitions for this object occurrence. The declaring object has to be part of an object type decomposition. The associated IfcObject, or its subtypes, contains the specific information (as part of a type, or style, definition), that is common to all reflected instances of the declaring IfcObject, or its subtypes.	X
	Declares	IfcRelDefinesByObject @RelatingObject	S[0:?]	Link to the relationship object pointing to the reflected object(s) that receives the object definitions. The reflected object has to be part of an object occurrence decomposition. The associated IfcObject, or its subtypes, provides the specific information (as part of a type, or style, definition), that is common to all reflected instances of the declaring IfcObject, or its subtypes.	X
	IsTypedBy	IfcRelDefinesByType @RelatedObjects	S[0:1]	Set of relationships to the object type that provides the type definitions for this object occurrence. The then associated IfcTypeObject, or its subtypes, contains the specific information (or type, or style), that is common to all instances of IfcObject, or its subtypes, referring to the same type.	X
	IsDefinedBy	IfcRelDefinesByProperties @RelatedObjects	S[0:?]	Set of relationships to property set definitions attached to this object. Those statically or dynamically defined properties contain alphanumeric information content that further defines the object.	X
IfcControl
6	Identification	IfcIdentifier	[0:1]	An identifying designation given to a control It is the identifier at the occurrence level.	X
	Controls	IfcRelAssignsToControl @RelatingControl	S[0:?]	Reference to the relationship that associates the control to the object(s) being controlled.	X
IfcProjectOrder
7	PredefinedType	IfcProjectOrderTypeEnum	[0:1]	Predefined generic type for a project order that is specified in an enumeration. There may be a property set given specificly for the predefined types.	X
8	Status	IfcLabel	[0:1]	The current status of a project order.Examples of status values that might be used for a project order status include: PLANNED REQUESTED APPROVED ISSUED STARTED DELAYED DONE	X
9	LongDescription	IfcText	[0:1]	A detailed description of the project order describing the work to be completed.	X

 

EXPRESS Specification

ENTITY IfcProjectOrder
 SUBTYPE OF (IfcControl);
  PredefinedType : OPTIONAL IfcProjectOrderTypeEnum;
  Status : OPTIONAL IfcLabel;
  LongDescription : OPTIONAL IfcText;
END_ENTITY;

 

 

 

 

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标签：relationship,object,IfcProjectOrder,part,decomposition,subtypes,type
From： https://www.cnblogs.com/herd/p/17558019.html