A system, such as a distribution system, services a particular spatial structure, either an entire facility (and its specific subtypes e.g. buildings, bridges, roads, or marine facilities), a facility part, a building storey, or any part of these structures. The system (IfcSystem) in question should be human identifiable by its Name attribute. The use of IfcRelReferencedInSpatialStructure in this template provides the relationship across spatial and functional hierarchies allowing the spatial coverage of functional systems.
Figure 183 illustrates an instance diagram.
Figure 183 — Spatial Service Connectivity |
<?xml version="1.0" encoding="utf-8"?>
<ConceptTemplate xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" uuid="e3461692-f4c5-4dfa-a8f5-0734a0698f6b" name="Spatial Service Connectivity" applicableSchema="IFC4" applicableEntity="IfcSpatialElement">
<Rules>
<AttributeRule RuleID="ReferencedInStructures" AttributeName="ReferencedInStructures">
<EntityRules>
<EntityRule EntityName="IfcRelReferencedInSpatialStructure">
<AttributeRules>
<AttributeRule RuleID="RelatedSystems" AttributeName="RelatedElements">
<EntityRules>
<EntityRule EntityName="IfcSystem">
<AttributeRules>
<AttributeRule RuleID="SystemName" AttributeName="Name">
<EntityRules>
<EntityRule EntityName="IfcLabel" />
</EntityRules>
</AttributeRule>
</AttributeRules>
</EntityRule>
</EntityRules>
</AttributeRule>
</AttributeRules>
</EntityRule>
</EntityRules>
</AttributeRule>
</Rules>
</ConceptTemplate>