<?xml version="1.0"?>
<PropertySetDef xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" ifdguid="519ab53b9b3848d494c3caf0dac8688e" templatetype="PSET_OCCURRENCEDRIVEN" xsi:noNamespaceSchemaLocation="http://buildingSMART-tech.org/xml/psd/PSD_IFC4.xsd">
  <IfcVersion version="IFC4" />
  <Name>Pset_ServiceLifeFactors</Name>
  <Definition>Captures various factors that impact the expected service life of elements within the system or zone.</Definition>
  <Applicability />
  <ApplicableClasses>
    <ClassName>IfcSystem</ClassName>
  </ApplicableClasses>
  <ApplicableTypeValue>IfcSystem</ApplicableTypeValue>
  <PropertyDefs>
    <PropertyDef ifdguid="d5f5278715be42a0b539cf3f060054e3">
      <Name>QualityOfComponents</Name>
      <Definition>Adjustment of the service life resulting from the effect of the quality of components used.</Definition>
      <PropertyType>
        <TypePropertyBoundedValue>
          <DataType type="IfcPositiveRatioMeasure" />
        </TypePropertyBoundedValue>
      </PropertyType>
      <NameAliases>
        <NameAlias lang="en">Quality Of Components</NameAlias>
      </NameAliases>
      <DefinitionAliases>
        <DefinitionAlias lang="en" />
      </DefinitionAliases>
    </PropertyDef>
    <PropertyDef ifdguid="8d77f8cb925b4cfdbea48301f42c89a0">
      <Name>DesignLevel</Name>
      <Definition>Adjustment of the service life resulting from the effect of design level employed.</Definition>
      <PropertyType>
        <TypePropertyBoundedValue>
          <DataType type="IfcPositiveRatioMeasure" />
        </TypePropertyBoundedValue>
      </PropertyType>
      <NameAliases>
        <NameAlias lang="en">Design Level</NameAlias>
      </NameAliases>
      <DefinitionAliases>
        <DefinitionAlias lang="en" />
      </DefinitionAliases>
    </PropertyDef>
    <PropertyDef ifdguid="ac78d9e0d39b43f4af2c7b7596d60667">
      <Name>WorkExecutionLevel</Name>
      <Definition>Adjustment of the service life resulting from the effect of the quality of work executed.</Definition>
      <PropertyType>
        <TypePropertyBoundedValue>
          <DataType type="IfcPositiveRatioMeasure" />
        </TypePropertyBoundedValue>
      </PropertyType>
      <NameAliases>
        <NameAlias lang="en">Work Execution Level</NameAlias>
      </NameAliases>
      <DefinitionAliases>
        <DefinitionAlias lang="en" />
      </DefinitionAliases>
    </PropertyDef>
    <PropertyDef ifdguid="ab27c286d027498e962abd4fa0cab9a8">
      <Name>IndoorEnvironment</Name>
      <Definition>Adjustment of the service life resulting from the effect of the indoor environment (where appropriate).</Definition>
      <PropertyType>
        <TypePropertyBoundedValue>
          <DataType type="IfcPositiveRatioMeasure" />
        </TypePropertyBoundedValue>
      </PropertyType>
      <NameAliases>
        <NameAlias lang="en">Indoor Environment</NameAlias>
      </NameAliases>
      <DefinitionAliases>
        <DefinitionAlias lang="en" />
      </DefinitionAliases>
    </PropertyDef>
    <PropertyDef ifdguid="9988ab22befe45c9ab3c94972c61bd90">
      <Name>OutdoorEnvironment</Name>
      <Definition>Adjustment of the service life resulting from the effect of the outdoor environment (where appropriate)</Definition>
      <PropertyType>
        <TypePropertyBoundedValue>
          <DataType type="IfcPositiveRatioMeasure" />
        </TypePropertyBoundedValue>
      </PropertyType>
      <NameAliases>
        <NameAlias lang="en">Outdoor Environment</NameAlias>
      </NameAliases>
      <DefinitionAliases>
        <DefinitionAlias lang="en" />
      </DefinitionAliases>
    </PropertyDef>
    <PropertyDef ifdguid="37ac936a1b0a42bfa3c0f4998cca50e4">
      <Name>InUseConditions</Name>
      <Definition>Adjustment of the service life resulting from the effect of the conditions in which components are operating.</Definition>
      <PropertyType>
        <TypePropertyBoundedValue>
          <DataType type="IfcPositiveRatioMeasure" />
        </TypePropertyBoundedValue>
      </PropertyType>
      <NameAliases>
        <NameAlias lang="en">In Use Conditions</NameAlias>
      </NameAliases>
      <DefinitionAliases>
        <DefinitionAlias lang="en" />
      </DefinitionAliases>
    </PropertyDef>
    <PropertyDef ifdguid="97e75274042544a89cb65b8a94766d30">
      <Name>MaintenanceLevel</Name>
      <Definition>Adjustment of the service life resulting from the effect of the level or degree of maintenance applied to dcomponents.</Definition>
      <PropertyType>
        <TypePropertyBoundedValue>
          <DataType type="IfcPositiveRatioMeasure" />
        </TypePropertyBoundedValue>
      </PropertyType>
      <NameAliases>
        <NameAlias lang="en">Maintenance Level</NameAlias>
      </NameAliases>
      <DefinitionAliases>
        <DefinitionAlias lang="en" />
      </DefinitionAliases>
    </PropertyDef>
  </PropertyDefs>
  <PsetDefinitionAliases>
    <PsetDefinitionAlias lang="en" />
  </PsetDefinitionAliases>
</PropertySetDef>