IfcProjectOrder
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:
|
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:
|
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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