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<h4 class="std">4.6.1.1 Spatial Composition</h4>
<p>Provision of a spatial structure of the project by aggregating spatial structure elements. The spatial structure is a hierarchical tree of spatial structure elements (site, building, storey, space) ultimately assigned to the project. Composition refers to the relationship to a higher level element (e.g. this storey is part of a building).</p>
<p>The order of spatial structure elements being included in the concept are from high to low level: <a href="../ifckernel/lexical/ifcproject.html">IfcProject</a>, <a href="../ifcproductextension/lexical/ifcsite.html">IfcSite</a>, <a href="../ifcproductextension/lexical/ifcbuilding.html">IfcBuilding</a>, <a href="../ifcproductextension/lexical/ifcbuildingstorey.html">IfcBuildingStorey</a>, <a href="../ifcproductextension/lexical/ifcspace.html">IfcSpace</a>. Therefore an spatial structure element can only be part of an element at the same or higher level.</p><p>Figure 17 illustrates an instance diagram.</p>
<table><tr><td><img alt="Spatial Composition" src="diagrams/spatial-composition.png" usemap="#f17"><map name="f17"><area shape="rect" coords="8,8,176,296" href="../ifcproductextension/lexical/ifcspatialelement.html" alt="IfcSpatialElement" /><area shape="rect" coords="208,8,376,92" href="../ifckernel/lexical/ifcrelaggregates.html" alt="IfcRelAggregates" /><area shape="rect" coords="408,8,576,296" href="../ifcproductextension/lexical/ifcspatialelement.html" alt="IfcSpatialElement" /></map></td></tr><tr><td><p class="figure">Figure 17 &mdash; Spatial Composition</p></td></tr></table>

<hr/>
<h4>Construction Operations</h4>
<p>This concept is used by entities for exchanges as shown.</p>
<table class="exchange">
<tr><td></td><td><a href="../views/construction-operations/facility-criteria.html"><image width="16" src="../../img/mvd-facility-criteria.png" title="Facility Criteria"/></a></td>
<td><a href="../views/construction-operations/discipline-specifications.html"><image width="16" src="../../img/mvd-discipline-specifications.png" title="Discipline Specifications"/></a></td>
<td><a href="../views/construction-operations/project-definition.html"><image width="16" src="../../img/mvd-project-definition.png" title="Project Definition"/></a></td>
<td><a href="../views/construction-operations/space-program.html"><image width="16" src="../../img/mvd-space-program.png" title="Space Program"/></a></td>
<td><a href="../views/construction-operations/product-program.html"><image width="16" src="../../img/mvd-product-program.png" title="Product Program"/></a></td>
<td><a href="../views/construction-operations/design-early.html"><image width="16" src="../../img/mvd-design-early.png" title="Design Early"/></a></td>
<td><a href="../views/construction-operations/design-schematic.html"><image width="16" src="../../img/mvd-design-schematic.png" title="Design Schematic"/></a></td>
<td><a href="../views/construction-operations/design-coordinated.html"><image width="16" src="../../img/mvd-design-coordinated.png" title="Design Coordinated"/></a></td>
<td><a href="../views/construction-operations/design-issue.html"><image width="16" src="../../img/mvd-design-issue.png" title="Design Issue"/></a></td>
<td><a href="../views/construction-operations/product-type-template.html"><image width="16" src="../../img/mvd-product-type-template.png" title="Product Type Template"/></a></td>
<td><a href="../views/construction-operations/product-template.html"><image width="16" src="../../img/mvd-product-template.png" title="Product Template"/></a></td>
<td><a href="../views/construction-operations/bid-issue.html"><image width="16" src="../../img/mvd-bid-issue.png" title="Bid Issue"/></a></td>
<td><a href="../views/construction-operations/product-type-selection.html"><image width="16" src="../../img/mvd-product-type-selection.png" title="Product Type Selection"/></a></td>
<td><a href="../views/construction-operations/system-layout.html"><image width="16" src="../../img/mvd-system-layout.png" title="System Layout"/></a></td>
<td><a href="../views/construction-operations/product-installation.html"><image width="16" src="../../img/mvd-product-installation.png" title="Product Installation"/></a></td>
<td><a href="../views/construction-operations/product-inspection.html"><image width="16" src="../../img/mvd-product-inspection.png" title="Product Inspection"/></a></td>
<td><a href="../views/construction-operations/construction-issue.html"><image width="16" src="../../img/mvd-construction-issue.png" title="Construction Issue"/></a></td>
<td><a href="../views/construction-operations/product-type-parts.html"><image width="16" src="../../img/mvd-product-type-parts.png" title="Product Type Parts"/></a></td>
<td><a href="../views/construction-operations/product-type-warranty.html"><image width="16" src="../../img/mvd-product-type-warranty.png" title="Product Type Warranty"/></a></td>
<td><a href="../views/construction-operations/product-type-maintenance.html"><image width="16" src="../../img/mvd-product-type-maintenance.png" title="Product Type Maintenance"/></a></td>
<td><a href="../views/construction-operations/system-operation.html"><image width="16" src="../../img/mvd-system-operation.png" title="System Operation"/></a></td>
<td><a href="../views/construction-operations/space-condition.html"><image width="16" src="../../img/mvd-space-condition.png" title="Space Condition"/></a></td>
<td><a href="../views/construction-operations/product-parts-replacement.html"><image width="16" src="../../img/mvd-product-parts-replacement.png" title="Product Parts Replacement"/></a></td>
<td><a href="../views/construction-operations/space-occupancy.html"><image width="16" src="../../img/mvd-space-occupancy.png" title="Space Occupancy"/></a></td>
<td><a href="../views/construction-operations/space-activity-renovation.html"><image width="16" src="../../img/mvd-space-activity-renovation.png" title="Space Activity Renovation"/></a></td>
<td><a href="../views/construction-operations/remodel.html"><image width="16" src="../../img/mvd-remodel.png" title="Remodel"/></a></td>
<td><a href="../views/construction-operations/expand.html"><image width="16" src="../../img/mvd-expand.png" title="Expand"/></a></td>
<td><a href="../views/construction-operations/demolish.html"><image width="16" src="../../img/mvd-demolish.png" title="Demolish"/></a></td>
</tr><tr><td><a href="../ifcproductextension/lexical/ifcbuilding.html">IfcBuilding</a></td><td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
</tr>
<tr><td><a href="../ifcproductextension/lexical/ifcbuildingstorey.html">IfcBuildingStorey</a></td><td>O<br/>O</td>
<td>O<br/>O</td>
<td>O<br/>O</td>
<td>O<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
</tr>
<tr><td><a href="../ifcproductextension/lexical/ifcsite.html">IfcSite</a></td><td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
</tr>
<tr><td><a href="../ifcproductextension/lexical/ifcspace.html">IfcSpace</a></td><td>O<br/>O</td>
<td>O<br/>O</td>
<td>O<br/>O</td>
<td>O<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
<td>R<br/>R</td>
</tr>
</table>
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