![]() | Kostentabelle |
![]() | Cost Schedule |
![]() | 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 |
An IfcCostSchedule brings together instances of IfcCostItem either for the purpose of identifying purely cost information as in an estimate for constructions costs or for including cost information within another presentation form such as a work order.
HISTORY New entity in IFC2.0.
IFC4 CHANGE Attribute ID renamed to Identification and promoted to supertype IfcControl, PredefinedType made optional, attributes PreparedBy, SubmittedBy, TargetUsers removed.
# | 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. |
# | 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. |
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.
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Figure 1 — Bridge quantities table |
Object Nesting
The Object Nesting concept applies to this entity as shown in Table 66.
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Table 66 — IfcCostSchedule Object Nesting |
Exchange | ![]() |
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---|---|---|---|---|
Import | O | R | ||
Export | O | R |
# | 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 |
<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>
ENTITY IfcCostSchedule
SUBTYPE OF (IfcControl);
PredefinedType : OPTIONAL IfcCostScheduleTypeEnum;
Status : OPTIONAL IfcStrippedOptional;
SubmittedOn : OPTIONAL IfcStrippedOptional;
UpdateDate : OPTIONAL IfcStrippedOptional;
END_ENTITY;