IfcCostSchedule

Item	SPF	XML	Change	Description
IFC2x3 to IFC4
IfcCostSchedule
OwnerHistory			MODIFIED	Instantiation changed to OPTIONAL.
Identification	X	X	MODIFIED	Name changed from SubmittedBy to Identification. Type changed from IfcActorSelect to IfcIdentifier.
PredefinedType	X	X	MODIFIED	Name changed from PreparedBy to PredefinedType. Type changed from IfcActorSelect to IfcCostScheduleTypeEnum.
Status	X	X	MODIFIED	Name changed from SubmittedOn to Status. Type changed from IfcDateTimeSelect to IfcLabel.
SubmittedOn			MODIFIED	Name changed from Status to SubmittedOn. Type changed from IfcLabel to IfcDateTime.
UpdateDate	X	X	MODIFIED	Name changed from TargetUsers to UpdateDate. Type changed from IfcActorSelect to IfcDateTime. Aggregation changed from SET to NONE.
UpdateDate	X		DELETED
ID	X		DELETED
PredefinedType	X		DELETED

#	Attribute	Type	Cardinality	Description	B
7	PredefinedType	IfcCostScheduleTypeEnum	[0:1]	Predefined generic type for a cost schedule that is specified in an enumeration. There may be a property set given specifically for the predefined types.	X
8	Status	-		This attribute is out of scope for this model view definition and shall not be set.
9	SubmittedOn	-		This attribute is out of scope for this model view definition and shall not be set.
10	UpdateDate	-		This attribute is out of scope for this model view definition and shall not be set.

Inherited definitions from supertypes

Entity inheritance

Attribute inheritance

#	Attribute	Type	Cardinality	Description	B
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).
	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.
	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	-		This attribute is out of scope for this model view definition and shall not be set.
	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	-		This attribute is out of scope for this model view definition and shall not be set.
	Controls	IfcRelAssignsToControl @RelatingControl	S[0:?]	Reference to the relationship that associates the control to the object(s) being controlled.	X
IfcCostSchedule
7	PredefinedType	IfcCostScheduleTypeEnum	[0:1]	Predefined generic type for a cost schedule that is specified in an enumeration. There may be a property set given specifically for the predefined types.	X
8	Status	-		This attribute is out of scope for this model view definition and shall not be set.
9	SubmittedOn	-		This attribute is out of scope for this model view definition and shall not be set.
10	UpdateDate	-		This attribute is out of scope for this model view definition and shall not be set.

Definitions applying to Bridge View

Instance diagram

Quantity information may be included in plans for several reasons: as a shortcut for contractors considering bidding to quickly determine whether the scope of a project is compatible with resource availability, and as verification in preparing a bid to determine whether everything has been captured in quantity takeoff. If geometry is of sufficient detail, then quantities may be more easily derived automatically, i.e. parameterized solid modeling rather than boundary representations or tessellations.

Quantities are detailed here because they are specifically included in the plans for the sample bridge. No recommendation is made as to whether they should be included for a particular bridge; rather that is left for the contracting parties to determine.

Schedules of quantities are captured as IfcCostSchedule with PredefinedType of BILLOFQUANTITIES. Each item in the schedule is captured as IfcCostItem, with individual costs captured as IfcCostValue. Physical elements that comprise quantities are related using the relationship IfcRelAssignsToControl.

Figure 1 — Bridge quantities table

Concept usage

Object Nesting

The Object Nesting concept applies to this entity as shown in Table 66.

Type	Description
IfcCostItem	Each quantity line item is nested directly under the cost schedule in order.

Table 66 — IfcCostSchedule Object Nesting

Exchange
Import		O		R
Export		O		R

Concept inheritance

#	Concept	Model View
IfcRoot
	Software Identity	Bridge View
	User Identity	Bridge View
	Object Ownership	Bridge View
IfcObject
	Property Sets for Objects	Bridge View
IfcCostSchedule
	Object Nesting	Bridge View

Formal representations

XSD Specification

 <xs:element name="IfcCostSchedule" type="ifc:IfcCostSchedule" substitutionGroup="ifc:IfcControl" nillable="true"/>

 <xs:complexType name="IfcCostSchedule">

  <xs:complexContent>

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

    <xs:attribute name="PredefinedType" type="ifc:IfcCostScheduleTypeEnum" use="optional"/>

   </xs:extension>

  </xs:complexContent>

 </xs:complexType>

EXPRESS Specification


ENTITY IfcCostSchedule

 SUBTYPE OF (IfcControl);

  PredefinedType : OPTIONAL IfcCostScheduleTypeEnum;

  Status : OPTIONAL IfcStrippedOptional;

  SubmittedOn : OPTIONAL IfcStrippedOptional;

  UpdateDate : OPTIONAL IfcStrippedOptional;

END_ENTITY;

 EXPRESS-G diagram

Link to this page

	Kostentabelle
	Cost Schedule
	IfcCostSchedule

IfcCostSchedule

Semantic definitions at the entity

Inherited definitions from supertypes

Definitions applying to Bridge View

Formal representations