46;IfcRoleEnum;"<EPM-HTML>

<p>Definition: Roles which may be played by an actor.</p>

<blockquote class=""history"">

HISTORY This type has changes after IFC Release 2.0. Spelling of COMMISSIONINGENGINEER fixed in IFC 2x4.

</blockquote>

<p>ENUMERATION</p>

<ul>

<li><B>SUPPLIER</B></li>

<li><B>MANUFACTURER</B></li>

<li><B>CONTRACTOR</B></li>

<li><B>SUBCONTRACTOR</B></li>

<li><B>ARCHITECT</B></li>

<li><B>STRUCTURALENGINEER</B></li>

<li><B>COSTENGINEER</B></li>

<li><B>CLIENT</B></li>

<li><B>BUILDINGOWNER</B></li>

<li><B>BUILDINGOPERATOR</B></li>

<li><B>MECHANICALENGINEER</B></li>

<li><B>ELECTRICALENGINEER</B></li>

<li><B>PROJECTMANAGER</B></li>

<li><B>FACILITIESMANAGER</B></li>

<li><B>CIVILENGINEER</B></li>

<li><B>COMMISSIONINGENGINEER</B></li>

<li><B>ENGINEER</B></li>

<li><B>OWNER</B></li>

<li><B>CONSULTANT</B></li>

<li><B>CONSTRUCTIONMANAGER</B></li>

<li><B>FIELDCONSTRUCTIONMANAGER</B></li>

<li><B>RESELLER</B></li>

<li><B>USERDEFINED</B> User defined value to be provided.</li>

</ul>

</EPM-HTML>"

96;IfcAddressTypeEnum;"<EPM-HTML>

<P><U>Definition from IAI</U>: Identifies the logical location of the address.

<BLOCKQUOTE> <FONT SIZE=""-1"" COLOR=""#0000FF"">HISTORY New type in IFC Release 2x.

</FONT>

</BLOCKQUOTE>

<P>ENUMERATION</P>

<UL>

<LI><B>OFFICE</B> An office address.</LI>

<LI><B>SITE</B> A site address.</LI>

<LI><B>HOME</B> A home address.</LI>

<LI><B>DISTRIBUTIONPOINT</B> A postal distribution point address.</LI>

<LI><B>USERDEFINED</B> A user defined address type to be provided.</LI>

</UL>

</EPM-HTML>"

149;IfcPerformanceHistoryTypeEnum;"<EPM-HTML>

<p>This enumeration is used to identify the primary purpose of performance history. The <i>IfcPerformanceHistoryTypeEnum</i> contains the following:</p>

<ul>

<li>USERDEFINED: User-defined.</li>

<li>NOTDEFINED: Undefined.</li>

</ul>

<blockquote class=""history"">

HISTORY: New enumeration in IFC2x4

</blockquote>

</EPM-HTML>"

165;IfcPileTypeEnum;"<EPM-HTML>

<p><u>Definition from IAI:</u> Enumeration defining the pile type. </p>

<blockquote><font color=""#0000ff"" size=""-1"">HISTORY New type in IFC Release 2x2<br>

IFC 2x4 change:&nbsp; Items BORED, DRIVEN, JETGROUTING added</font></blockquote>

<ul>

<li><b>BORED</b> A bore pile.</li>

<li><b>DRIVEN</b> A rammed, vibrated, or otherwise driven pile.</li>

<li><b>JETGROUTING</b> An injected pile-like construction.</li>

<li><b>COHESION</b> A cohesion pile.</li>

<li><b>FRICTION</b> A friction pile.</li>

<li><b>SUPPORT</b> A support pile.</li>

<li><b>USERDEFINED</b> The type of pile function is user defined.</li>

<li><b>NOTDEFINED</b> The type of pile function is not defined.</li>

</ul>

</EPM-HTML>"

177;IfcFootingTypeEnum;"<EPM-HTML>

<p><u>Definition from IAI:</u> Enumeration defining the generic footing type.</p>

<blockquote><font color=""#0000ff"" size=""-1"">HISTORY New type in IFC Release 2x2<br>

IFC 2x4 change:&nbsp; Item CAISSON_FOUNDATION added</font></blockquote>

<p>ENUMERATION</p>

<ul>

<li><b>CAISSON_FOUNDATION</b> A foundation construction type used in underwater construction.</li>

<li><b>FOOTING_BEAM</b> Footing elements that are in bending and are supported clear of the ground. They will normally span between piers, piles or pile caps. They are distinguished from beams in the building superstructure since they will normally require a lower grade of finish. They are distinguished from <i>STRIP_FOOTING</i> since they are clear of the ground surface and hence require support to the lower face while the concrete is curing.</li>

<li><b>PAD_FOOTING</b> An element that transfers the load of a single column (possibly two) to the ground.</li>

<li><b>PILE_CAP</b> An element that transfers the load from a column or group of columns to a pier or pile or group of piers or piles.</li>

<li><b>STRIP_FOOTING</b> A linear element that transfers loads into the ground from either a continuous element, such as a wall, or from a series of elements, such as columns.</li>

<li><b>USERDEFINED</b> Special types of footings which meet specific local requirements.</li>

<li><b>NOTDEFINED</b> The type of footing is not defined.</li>

</ul>

</EPM-HTML>"

188;IfcSurfaceFeatureTypeEnum;"<EPM-HTML>

<p><u>Definition from IAI:</u> This enumeration indicates the type of a surface feature.</u></p>

<blockquote><font color=""#0000ff"" size=""-1"">HISTORY New type in IFC 2x4.</font></blockquote>

<p>ENUMERATION</p>

<ul>

<li><b>MARK</b> A point, line, cross, or other mark, applied for example for easier adjustment of elements during assembly.</li>

<li><b>TAG</b> A name tag, which allows to identify an element during production, delivery and assembly. May be manufactured in different ways, e.g. by printing or punching the tracking code onto the element or by attaching an actual tag.</li>

<li><b>TREATMENT</b> A subtractive surface feature, e.g. grinding, or an additive surface feature, e.g. coating, or an impregnating treatment, or a series of any of these kinds of treatments.</li>

<li><b>USERDEFINED</b> A user-defined type of surface feature.</li>

<li><b>NOTDEFINED</b> An undefined type of surface feature.</li>

</ul>

</EPM-HTML>"

197;IfcVoidingFeatureTypeEnum;"<EPM-HTML>

<p><u>Definition from IAI:</u> This enumeration qualifies a voiding feature regarding its shape and configuration relative to the voided element.</u></p>

<blockquote><font color=""#0000ff"" size=""-1"">HISTORY New type in IFC 2x4.</font></blockquote>

<p>ENUMERATION</p>

<ul>

<li><b>CUTOUT</b> An internal cutout (creating an opening) or external cutout (creating a recess) of arbitrary shape. The edges between cutting planes may be overcut or undercut, i.e. rounded.</li>

<li><b>NOTCH</b> An external cutout of with a mostly rectangular cutting profile. The edges between cutting planes may be overcut or undercut, i.e. rounded.</li>

<li><b>HOLE</b> A circular or slotted or threaded hole, typically but not necessarily of smaller dimension than what would be considered a cutout.</li>

<li><b>MITER</b> A skewed plane end cut, removing material across the entire profile of the voided element.</li>

<li><b>CHAMFER</b> A skewed plane end cut, removing material only across a part of the profile of the voided element.</li>

<li><b>EDGE</b> A shape modification along an edge of the element with the edge length as the predominant dimension of the feature, and feature profile dimensions which are typically much smaller than the edge length. Can for example be a chamfer edge (differentiated from a chamfer by its ratio of dimensions and thus usually manufactured differently), rounded edge (a convex edge feature), or fillet edge (a concave edge feature).</li>

<li><b>USERDEFINED</b> A user-defined type of voiding feature.</li>

<li><b>NOTDEFINED</b> An undefined type of voiding feature.</li>

</ul>

</EPM-HTML>"

215;IfcPileConstructionEnum;"<EPM-HTML>

<P><U>Definition from IAI:</U> Enumeration defining the construction type

for piles. The type is mainly based on how the piles are used and manufactured.

Some material information is mixed in because this affects the way the piles

are used. </P>

<BLOCKQUOTE>

<P><FONT COLOR=""#0000FF"" SIZE=""-1""> HISTORY New type in IFC Release 2x2

</FONT></P></BLOCKQUOTE>

<P>ENUMERATION</P>

<UL>

<LI><B>CAST_IN_PLACE</B> Piles and piers that are excavated and poured in

place. </LI>

<LI><B>COMPOSITE</B> Piles that are a mix of components, such as a steel

outer casing which is driven into the ground with a cast-in-place concrete

core. </LI>

<LI><B>PRECAST_CONCRETE</B> Piles that are entirely of precast concrete

(possibly with some steel or other fixtures). </LI>

<LI><B>PREFAB_STEEL</B> Prefabricated piles made entirely out of steel.

It will also include steel sheet piles where these are not part of another

construction element. </LI>

<LI><B>USERDEFINED</B> Special types of pile construction which meet

specific local requirements. </LI>

<LI><B>NOTDEFINED</B> The type of pile construction is not defined. </LI>

</UL>

</EPM-HTML>"

240;IfcReinforcingElementTypeEnum;

383;IfcCurveInterpolationEnum;"<EPM-HTML>

<p><i>IfcCurveInterpolationEnum</i> specifies the possible methods

for the interpolation of property values given as a curve.</p>

<blockquote class=""history"">

HISTORY&nbsp; New type in IFC2x4.

</blockquote>

<p><u>Enumeration</u></p>

<ul>

<li>LINEAR: Indicates that values between the defined

values are to be found by linear interpolation.</li>

<li>LOG_LINEAR: Indicates that values between the defined

values are to be found by linear interpolation of the natural

logarithm (base e) of the values.</li>

<li>LOG_LOG: Indicates that values between the defined

values are to be found by linear interpolation of the Briggs'

logarithm (base 10) of the values.</li>

<li>NOTDEFINED: No interpolation information is

provided</li>

</ul>

</EPM-HTML>"

566;IfcSpaceTypeEnum;"<EPM-HTML>

<p><u>Definition from IAI</u>: This enumeration defines the

available generic types for <i>IfcSpace</i> and

<i>IfcSpaceType</i>.</p>

<blockquote><font color=""#0000FF""><small>HISTORY New enumeration

in IFC2x3.</small></font><br>

<font color=""#FF0000""><small>IFC2x4 CHANGE The enumerators

INTERNAL and EXTERNAL have been added for upward compatibility to

replace <i>InteriorOrExteriorSpace</i>

usage.</small></font></blockquote>

<p><u>Enumeration</u></p>

<ul>

<li><b>SPACE</b> Any space not falling into another category.<br>

<ul style=""list-style-type:none;"">

<li><small>NOTE For classification of spaces according to its

function that is often determined by national classification

systems use <i>IfcClassificationReference</i> via the

relationship <i>IfcRelAssociatesClassification</i>.</small></li>

</ul>

</li>

<li><b>PARKING</b> A space dedication for use as a parking spot

for vehicles, including access, such as a parking aisle</li>

<li><b>GFA</b> Gross Floor Area - a specific kind of space for

each building story that includes all net area and construction

area (also the external envelop). Provision of such a specific

space is often required by regulations.</li>

<li>INTERNAL<br>

<ul style=""list-style-type:none;"">

<li><small><font color=""#FF0000"">NOTE the use is deprecated and

only provided for backward compatibility

purposes.</font></small></li>

</ul>

</li>

<li>EXTERNAL<br>

<ul style=""list-style-type:none;"">

<li><small><font color=""#FF0000"">NOTE the use is deprecated and

only provided for backward compatibility

purposes.</font></small></li>

</ul>

</li>

</ul>

</EPM-HTML>"

577;IfcSpatialZoneTypeEnum;"<EPM-HTML>

<p><i>Definition from IAI</i>: This enumeration defines the range

of different types of spatial zones that can further specify an

<i>IfcSpatialZoneTypeEnum</i>.</p>

<blockquote><small><font color=""#0000FF"">HISTORY New enumeration

in IFC Release 2x Edition 4.</font></small></blockquote>

<p><u>Enumeration</u></p>

<ul>

<li><small><b>CONSTRUCTION</b></small>: the spatial zone is used

to represent a construction zone for the production process</li>

<li><small><b>FIRESAFETY</b></small>: the spatial zone is used to

represent a fire safety zone, or fire compartment</li>

<li><small><b>LIGHTING</b></small>: the spatial zone is used to

represent a lighting zone, e.g. a daylight zone, or a artificial

lighting zone</li>

<li><small><b>OCCUPANCY</b></small>: the spatial zone is used to

represent a zone of particular occupancy</li>

<li><small><b>SECURITY</b></small>: the spatial zone is used to

represent a zone for security planning and maintainance

work.</li>

<li><small><b>THERMAL</b></small>: the spatial zone is used to

represent a thermal zone</li>

<li><small><b>USERDEFINED</b></small>: user defined type spatial

zone</li>

<li><small><b>NOTDEFINED</b></small>: undefined type spatial

zone</li>

</ul>

</EPM-HTML>"

593;IfcTransportElementTypeEnum;"<EPM-HTML>

<p><u>Definition from IAI</u>: This enumeration is used to

identify primary transport element types. The

<i>IfcTransportElementTypeEnum</i> contains the following:</p>

<ul>

<li><b>ELEVATOR</b>: Elevator or lift being a transport device to

move people of good vertically.</li>

<li><b>ESCALATOR</b>: Escalator being a transport device to move

people. It consists of individual linked steps that move up and

down on tracks while keeping the threads horizontal.</li>

<li><b>MOVINGWALKWAY</b>: Moving walkway being a transport device

to move people horizontally or on an incline. It is a slow

conveyor belt that transports people.</li>

<li><b>CRANEWAY</b>: A crane way system, normally including the

crane rails, fasteners and the crane. It is primarily used to

move heavy goods in a factory or other industry buildings.</li>

<li><b>LIFTINGGEAR</b>: A device used for lifting or lowering

heavy goods. It may be manually operated or electrically or

pneumatically driven.</li>

</ul>

<blockquote>

<blockquote><small><font color=""#0000FF"">HISTORY  New enumeration

in IFC Release 2x.</font></small><br>

<small><font color=""#FF0000"">IFC2x4 CHANGE  New enumerators

CRANEWAY and LIFTINGGEAR added in

IFC2x4.</font></small></blockquote>

</blockquote>

</EPM-HTML>"

604;IfcGeographicElementTypeEnum;

610;IfcElementAssemblyTypeEnum;"<EPM-HTML>

<p>

<u>Definition from IAI:</u> An enumeration defining the

basic configuration types for element assemblies.

</p>

<blockquote>

<p>

<small><font color=""#0000FF"">HISTORY New enumeration type

in Release IFC2x Edition 2.</font></small>

</p>

</blockquote>

<p><u>Enumeration</u></p>

<ul>

<li><b><small>ACCESSORY_ASSEMBLY</small></b>: Assembled accessories or components</li>

<li><b><small>ARCH</small></b>: A curved structure</li>

<li><b><small>BEAM_GRID</small></b>: Interconnected beams, located in one (typically horizontal) plane</li>

<li><b><small>BRACED_FRAME</small></b>: A rigid frame with additional bracing members</li>

<li><b><small>GIRDER</small></b>: A beam-like superstructure</li>

<li><b><small>REINFORCEMENT_UNIT</small></b>: Assembled reinforcement elements</li>

<li><b><small>RIGID_FRAME</small></b>: A structure built up of beams, columns, etc. with moment-resisting joints</li>

<li><b><small>SLAB_FIELD</small></b>: Slabs, laid out in one plane</li>

<li><b><small>TRUSS</small></b>: A structure built up of members with (quasi) pinned joints</li>

<li><b><small>USERDEFINED</small></b>: User-defined element assembly</li>

<li><b><small>NOTDEFINED</small></b>: Undefined element assembly</li>

</ul>

</EPM-HTML>"

652;IfcProjectionElementTypeEnum;"<EPM-HTML>

<p><u>Definition from IAI:</u> An enumeration defining the basic

types for projection elements.</p>

<blockquote>

<p><small><font color=""#0000FF"">HISTORY New enumeration type in

IFC2x4.</font></small></p>

</blockquote>

<p><u>Enumeration</u></p>

<ul>

<li><b><small>USERDEFINED</small></b>: User-defined projection

element</li>

<li><b><small>NOTDEFINED</small></b>: Undefined projection

element</li>

</ul>

</EPM-HTML>"

671;IfcOpeningElementTypeEnum;"<EPM-HTML>

<p><u>Definition from IAI:</u> An enumeration defining the basic

types for opening elements.</p>

<blockquote>

<p><small><font color=""#0000FF"">HISTORY New enumeration type in

IFC2x4.</font></small></p>

</blockquote>

<p><u>Enumeration</u></p>

<ul>

<li><b><small>OPENING</small></b>: An opening as subtraction

feature that cuts through the element it voids. It thereby

creates a hole. An opening in addiion have a particular meaning

for either providing a void for doors or windows, or an opening

to permit flow of air and passing of light,</li>

<li><b><small>RECESS</small></b>: A opening as subtraction

feature that does not cut through the element it voids. It

creates a niche or similar voiding pattern.</li>

<li><b><small>USERDEFINED</small></b>: User-defined opening

element</li>

<li><b><small>NOTDEFINED</small></b>: Undefined opening

element</li>

</ul>

</EPM-HTML>"

684;IfcAssemblyPlaceEnum;"<EPM-HTML>

<p>

<u>Definition from IAI</u>: Enumeration defining where the

assembly is intended to take place, either in a factory or

on the building site.

</p>

<blockquote>

<p>

<font color=""#0000FF""><small>HISTORY New enumeration in

Release IFC2x Edition 2.</small></font>

</p>

</blockquote>

<p>

<u>Enumeration</u>

</p>

<ul>

<li>SITE - this assembly is assembled at site

</li>

<li>FACTORY - this assembly is assembled in a factory

</li>

</ul>

</EPM-HTML>"

728;IfcExternalSpatialElementTypeEnum;"<EPM-HTML>

<p><u>Definition from IAI</u>: This enumeration defines the

different types of external spatial elements.</p>

<p><u>Enumeration</u>:</p>

<ul>

<li>EXTERNAL - External air space around the building.</li>

<li>EXTERNAL_EARTH - External volume covered by earth around the

building.</li>

<li>EXTERNAL_WATER - External volume covered with water around

the building.</li>

<li>EXTERNAL_FIRE - Space occupied by a neightboring

building.</li>

<li>USERDEFINED</li>

<li>NOTDEFINED</li>

</ul>

<blockquote><small><font color=""#FF0000"">HISTORY New enumeration

in IFC2x4.</font></small></blockquote>

</EPM-HTML>"

750;IfcElementCompositionEnum;"<EPM-HTML>

<p>

<u>Definition from IAI</u>: Enumeration that provides an

indication, whether the spatial structure element or proxy

represents a:

</p>

<ul>

<li>COMPLEX - a group or aggregation of similar elements

</li>

<li>ELEMENT - a (undivided) element itself

</li>

<li>PARTIAL - a subelement or part

</li>

</ul>

<blockquote>

<font color=""#0000FF"" size=""-1"">HISTORY New enumeration in

IFC Release 2.x</font>

</blockquote>

</EPM-HTML>"

754;IfcPhysicalOrVirtualEnum;"<EPM-HTML>

<p>

<u>Definition from IAI</u>: This enumeration defines the

different types of space boundaries in terms of its

physical manifestation. A space boundary can either be

physically dividing or can be a virtual divider.

</p>

<p>

<u>Enumeration</u>:

</p>

<table>

<tr>

<td valign=""top"" align=""left"">

PHYSICAL

</td>

<td valign=""top"" align=""left"">

The space boundary is provided physically, i.e. by an

physical element.

</td>

</tr>

<tr>

<td valign=""top"" align=""left"">

VIRTUAL

</td>

<td valign=""top"" align=""left"">

The space boundary is provided virtually, i.e. by a

logical divider that has no physical manifestation.

</td>

</tr>

<tr>

<td valign=""top"" align=""left"">

NOTDEFINED

</td>

<td valign=""top"" align=""left"">

No information available.

</td>

</tr>

</table>

<blockquote>

<font size=""-1"" color=""#0000FF"">HISTORY: New enumeration in

IFC Release 2.0</font>

</blockquote>

</EPM-HTML>"

758;IfcInternalOrExternalEnum;"<EPM-HTML>

<p><u>Definition from IAI</u>: This enumeration defines the

different types of space boundaries in terms of either being

inside the building or outside the building.</p>

<p><u>Enumeration</u>:</p>

<table cellspacing=""2"" cellpadding=""2"" border=""0"">

<tr>

<td valign=""top"" align=""left"" colspan=""3"">INTERNAL</td>

</tr>

<tr>

<td valign=""top"" align=""left"" width=""10""></td>

<td valign=""top"" align=""left"" width=""140"">

<i>IfcSpaceBoundary</i></td>

<td valign=""top"" align=""left"">The space boundary faces a physical

or virtual element where there is an internal space on the other

side.</td>

</tr>

<tr>

<td valign=""top"" align=""left"" colspan=""3"">EXTERNAL</td>

</tr>

<tr>

<td valign=""top"" align=""left"" width=""10""></td>

<td valign=""top"" align=""left"" width=""140"">

<i>IfcSpaceBoundary</i></td>

<td valign=""top"" align=""left"">The space boundary faces a physical

or virtual element where there is an external space on the other

side (i.e. air). Or it is the space boundary of that external

space against the building.</td>

</tr>

<tr>

<td valign=""top"" align=""left"" colspan=""3"">EXTERNAL_EARTH</td>

</tr>

<tr>

<td valign=""top"" align=""left"" width=""10""></td>

<td valign=""top"" align=""left"" width=""140"">

<i>IfcSpaceBoundary</i></td>

<td valign=""top"" align=""left"">The space boundary faces a physical

or virtual element where there is earth (or terrain) on the other

side. Or it is the space boundary of that earth (or terrain

object) external space against the building.</td>

</tr>

<tr>

<td valign=""top"" align=""left"" colspan=""3"">EXTERNAL_WATER</td>

</tr>

<tr>

<td valign=""top"" align=""left"" width=""10""></td>

<td valign=""top"" align=""left"" width=""140"">

<i>IfcSpaceBoundary</i></td>

<td valign=""top"" align=""left"">The space boundary faces a physical

or virtual element where there is water (water component of

terrain) on the other side. Or it is the space boundary of that

object representing water external space against the

building.</td>

</tr>

<tr>

<td valign=""top"" align=""left"" colspan=""3"">EXTERNAL_FIRE</td>

</tr>

<tr>

<td valign=""top"" align=""left"" width=""10""></td>

<td valign=""top"" align=""left"" width=""140"">

<i>IfcSpaceBoundary</i></td>

<td valign=""top"" align=""left"">The space boundary faces a physical

or virtual element where there is another building on the other

side. Or it is the space boundary of that other neighbor building

against the building in question.</td>

</tr>

<tr>

<td valign=""top"" align=""left"" colspan=""3"">NOTDEFINED</td>

</tr>

<tr>

<td valign=""top"" align=""left"" width=""10""></td>

<td valign=""top"" align=""left"" width=""140""></td>

<td valign=""top"" align=""left"">No information available.</td>

</tr>

</table>

<blockquote><small><font color=""#FF0000"">HISTORY: New enumeration

in IFC Release 2.0</font></small><br>

<small><font color=""#FF0000"">IFC2x4 CHANGE: Enumeration no longer

applicable to <i>IfcSpace</i>. The following enumerators are

added: EXTERNAL_EARTH, EXTERNAL_WATER,

EXTERNAL_FIRE.</font></small></blockquote>

</EPM-HTML>"

931;IfcObjectTypeEnum;"<EPM-HTML>

<p>This enumeration defines the applicable object categories, that is, the subtypes at the 2^nd level of the IFC inheritance tree. Attached to an object, it indicates to which subtype of <i>IfcObject</i> the entity referencing it would otherwise comply with.</p>

<blockquote class=""history"">

HISTORY New entity in IFC Release 1.0, has been renamed from IfcProxyEnum in IFC 2x.

</blockquote>

</EPM-HTML>"

1012;IfcComplexPropertyTemplateTypeEnum;"<EPM-HTML>

<p>This enumeration defines the subtype of instances of <i>IfcComplexProperty</i> or <i>IfcPhysicalComplexQuantity</i> that may be created and defined by an <i>IfcComplexPropertyTemplate</i>.</p>

<blockquote class=""history"">

HISTORY New enumeration in IFC2x4.

</blockquote>

<p><u>Enumeration</u></p>

<ul>

<li>P_COMPLEX: the properties defined by this <i>IfcComplexPropertyTemplate</i> are of type <i>IfcComplexProperty</i>.</li>

<li>Q_COMPLEX: the properties defined by this <i>IfcComplexPropertyTemplate</i> are of type <i>IfcPhysicalComplexQuantity</i>.</li>

</ul>

</EPM-HTML>"

1023;IfcSimplePropertyTemplateTypeEnum;"<EPM-HTML>

<p>This enumeration defines the correct subtype of instances of <i>IfcSimpleProperty</i> or <i>IfcPhysicalSimpleQuantity</i> that are created and are assigned to this <i>IfcSimplePropertyTemplate</i>. It also determines how the attributes of <i>IfcPropertyTemplate</i>, <i>PrimaryUnit</i>, <i>SecondaryUnit</i>, <i>PrimaryDataType</i>, <i>SecondaryDataType</i>, should be used.</p>

<blockquote class=""history"">

HISTORY New enumeration in IFC2x4.

</blockquote>

<p><u>Enumeration</u></p>

<ul>

<li>P_SINGLEVALUE: the properties defined by this <i>IfcPropertyTemplate</i> are of type <i>IfcPropertySingleValue</i>.</li>

<li>P_ENUMERATEDVALUE: the properties defined by this <i>IfcPropertyTemplate</i> are of type <i>IfcPropertyEnumeratedValue</i>.</li>

<li>P_BOUNDEDVALUE: the properties defined by this <i>IfcPropertyTemplate</i> are of type <i>IfcPropertyBoundedValue</i>.</li>

<li>P_LISTVALUE: the properties defined by this <i>IfcPropertyTemplate</i> are of type <i>IfcPropertyListValue</i>.</li>

<li>P_TABLEVALUE: the properties defined by this <i>IfcPropertyTemplate</i> are of type <i>IfcPropertyTableValue</i>.</li>

<li>P_REFERENCEVALUE: the properties defined by this <i>IfcPropertyTemplate</i> are of type <i>IfcPropertyReferenceValue</i>.</li>

<li>Q_LENGTH: the properties defined by this <i>IfcPropertyTemplate</i> are of type <i>IfcQuantityLength</i>.</li>

<li>Q_AREA: the properties defined by this <i>IfcPropertyTemplate</i> are of type <i>IfcQuantityArea</i>.</li>

<li>Q_VOLUME: the properties defined by this <i>IfcPropertyTemplate</i> are of type <i>IfcQuantityVolume</i>.</li>

<li>Q_COUNT: the properties defined by this <i>IfcPropertyTemplate</i> are of type <i>IfcQuantityCount</i>.</li>

<li>Q_WEIGHT: the properties defined by this <i>IfcPropertyTemplate</i> are of type <i>IfcQuantityWeight</i>.</li>

<li>Q_TIME: the properties defined by this <i>IfcPropertyTemplate</i> are of type <i>IfcQuantityTime</i>.</li>

</ul>

</EPM-HTML>"

1036;IfcPropertySetTemplateTypeEnum;"<EPM-HTML>

<p>This enumeration defines the general

applicability of instances of <i>IfcPropertySet</i>, or

<i>IfcElementQuantity</i> defined by this

<i>IfcPropertySetTemplate</i>, to subtypes of

<i>IfcObjectDefinition</i>.</p>

<blockquote class=""history"">

HISTORY New enumeration in IFC2x4.

</blockquote>

<p><u>Enumeration</u></p>

<ul>

<li>PSET_TYPEDRIVENONLY: the property sets

defined by this <i>IfcPropertySetTemplate</i> can only be assigned

to subtypes of <i>IfcTypeObject</i>.</li>

<li>PSET_TYPEDRIVENOVERRIDE: the property

sets defined by this <i>IfcPropertySetTemplate</i> can be assigned

to subtypes of <i>IfcTypeObject</i> and can be overridden by a

property set with same name at subtypes of <i>IfcObject</i>.</li>

<li>PSET_OCCURRENCEDRIVEN: the property sets

defined by this <i>IfcPropertySetTemplate</i> can only be assigned

to subtypes of <i>IfcObject</i>.</li>

<li>PSET_PERFORMANCEDRIVEN: the property sets

defined by this <i>IfcPropertySetTemplate</i> can only be assigned

to <i>IfcPerformanceHistory</i>,</li>

<li>QTO_TYPEDRIVENONLY: the element quantity

defined by this <i>IfcPropertySetTemplate</i> can only be assigned

to subtypes of <i>IfcTypeObject</i>.</li>

<li>QTO_TYPEDRIVENOVERRIDE: the element

quantity defined by this <i>IfcPropertySetTemplate</i> can be

assigned to subtypes of <i>IfcTypeObject</i> and can be overridden

by an element quantity with same name at subtypes of

<i>IfcObject</i>.</li>

<li>QTO_OCCURRENCEDRIVEN: the element

quantity defined by this <i>IfcPropertySetTemplate</i> can only be

assigned to subtypes of <i>IfcObject</i>.</li>

<li style=""list-style: none""><small><b>NOTDEFINED</b></small>: No

restriction provided, the property sets defined by this

<i>IfcPropertySetTemplate</i> can be assigned to any entity, if not

otherwise restricted by the <i>ApplicableEntity</i> attribute.</li>

</ul>

</EPM-HTML>"

1063;IfcFlowDirectionEnum;"<EPM-HTML>

<p>This enumeration defines the flow direction at a port as either a <i>SOURCE</i>, <i>SINK</i>, or <i>SOURCEANDSINK</i>. For solids, liquids, or gas, the direction is the physical flow direction. For electric power (circuits containing hot, neutral, ground), the direction is from the origination of power (from a distribution board to protective devices to switches to fixtures). For communication signals, the direction originates from where the signal is shaped, such as a sensor. For communicaton networks, the direction originates from the up-level network host, such as a router (having <i>SOURCE</i> ports) hosting multiple computers (having <i>SINK</i> ports).</p>

<ul>

<li><b>SOURCE</b>: A flow source, where a substance flows out of the connection.</li>

<li><b>SINK</b>: A flow sink, where a substance flows into the connection.</li>

<li><b>SOURCEANDSINK</b>: Both a source and sink, where a substance flows both into and out of the connection simultaneously.</li>

<li><b>NOTDEFINED</b>: Undefined flow direction.</li>

</ul>

<blockquote>

<font color=""#0000ff"" size=""-1"">HISTORY: New enumeration in IFC R2.0<br></font>

</blockquote>

</EPM-HTML>"

1068;IfcDistributionSystemEnum;"<EPM-HTML>

<p>This enumeration identifies different types of distribution systems.</p>

<blockquote>

<font color=""#0000ff"" size=""-1"">

HISTORY: New enumeration in IFC R2x4<br>

</font>

</blockquote>

<p>Valid enumerations for pipes and related elements include:</p>

<ul>

<li><b>CHEMICAL</b>: Arbitrary chemical further qualified by property set, such as for medical or industrial use.</li>

<li><b>CHILLEDWATER</b>: Nonpotable chilled water, such as circulated through an evaporator.</li>

<li><b>COMPRESSEDAIR</b>: Compressed air system.</li>

<li><b>CONDENSERWATER</b>: Nonpotable water, such as circulated through a condensor.</li>

<li><b>DOMESTICCOLDWATER</b>: Unheated potable water distribution system.</li>

<li><b>DOMESTICHOTWATER</b>: Heated potable water distribution system.</li>

<li><b>DRAINAGE</b>: Drainage collection system.</li>

<li><b>FIREPROTECTION</b>: Fire protection sprinkler system.</li>

<li><b>GAS</b>: Methane distribution system.</li>

<li><b>HAZARDOUS</b>: Hazardous material or fluid collection system.</li>

<li><b>HEATING</b>: Heated water distribution system.</li>

<li><b>OIL</b>: Oil distribution system.</li>

<li><b>RAINWATER</b>: Rainwater resulting from precipitation which directly falls on a parcel.</li>

<li><b>REFRIGERATION</b>: Refrigerant distribution system for purposes of fulfilling all or parts of a refrigeration cycle.</li>

<li><b>SEWAGE</b>: Sewage collection system.</li>

<li><b>STORMWATER</b>: Stormwater resulting from precipitation which runs off or travels over the ground surface.</li>

<li><b>VACUUM</b>: Vacuum distribution system.</li>

<li><b>VENT</b>: Vent system for wastewater piping systems.</li>

<li><b>WASTE</b>: Waste collection system.</li>

</ul>

<p>Valid enumerations for ducts and related elements include:</p>

<ul>

<li><b>AIRCONDITIONING</b>: Conditioned air distribution system for purposes of maintaining a temperature range within one or more spaces.</li>

<li><b>EXHAUST</b>: Exhaust air collection system for removing stale or noxious air from one or more spaces.</li>

<li><b>VENTILATION</b>: Ventilation air distribution system involved in either the exchange of air to the outside as well as circulation of air within a building.</li>

</ul>

<p>Valid enumerations for cables and related elements include:</p>

<ul>

<li><b>AUDIOVISUAL</b>: A transport of a single media source, having audio and/or video streams.</li>

<li><b>CONTROL</b>: A transport or network dedicated to control system usage.</li>

<li><b>DATA</b>: A network having general-purpose usage.</li>

<li><b>EARTHING</b>: A path for equipotential bonding, conducting current to the ground.</li>

<li><b>ELECTRICAL</b>: A circuit for delivering electrical power.</li>

<li><b>ELECTROACCOUSTIC</b>: An amplified audio signal such as for loudspeakers.</li>

<li><b>LIGHTING</b>: A circuit dedicated for lighting, such as a fixture having sockets for lamps.</li>

<li><b>LIGHTNINGPROTECTION</b>: A path for conducting lightning current to the ground.</li>

<li><b>POWERGENERATION</b>: A path for power generation.</li>

<li><b>SECURITY</b>: A transport or network dedicated to security system usage.</li>

<li><b>SIGNAL</b>: A raw analog signal, such as modulated data or measurements from sensors.</li>

<li><b>TELEPHONE</b>: A transport or network dedicated to telephone system usage.</li>

<li><b>TV</b>: A transport of multiple media sources (e.g. analog cable, satellite, over-the-air).</li>

</ul>

</EPM-HTML>"

1128;IfcDistributionChamberElementTypeEnum;"<EPM-HTML>

<p>This enumeration identifies different types of distribution chambers.</p>

<p>Valid enumerations are:</p>

<ul>

<li><b>FORMEDDUCT</b>: Space formed in the ground for the passage of pipes, cables, ducts.</li>

<li><b>INSPECTIONCHAMBER</b>: Chamber constructed on a drain, sewer or pipeline with a removable cover that permits visble inspection.</li>

<li><b>INSPECTIONPIT</b>: Recess or chamber formed to permit access for inspection of substructure and services.</li>

<li><b>MANHOLE</b>: Chamber constructed on a drain, sewer or pipeline with a removable cover that permits the entry of a person.</li>

<li><b>METERCHAMBER</b>: Chamber that houses a meter(s).</li>

<li><b>SUMP</b>: Recessed or small chamber into which liquid is drained to facilitate its collection for removal.</li>

<li><b>TRENCH</b>: Excavated chamber, the length of which typically exceeds the width.</li>

<li><b>VALVECHAMBER</b>: Chamber that houses a valve(s).</li>

<li><b>USERDEFINED</b>: User-defined chamber type.</li>

<li><b>NOTDEFINED</b>: Undefined chamber type.</li>

</ul>

<blockquote>

<font color=""#0000ff"" size=""-1"">HISTORY: New enumeration in IFC R2x2<br></font>

</blockquote>

</EPM-HTML>"

1183;IfcBuildingElementPartTypeEnum;"<EPM-HTML>

<p><u>Definition from IAI</u>: This enumeration defines the different types of building element parts:</p>

<ul>

<li><b>INSULATION</b>: The part provides thermal insulation, for example as insulation layer between wall panels in sandwich walls or as infill in stud walls.</li>

<li><b>PRECASTPANEL</b>: The part is a precast panel, usually as an internal or external layer in a sandwich wall panel.</li>

<li><b>USERDEFINED</b>: User-defined accessory</li>

<li><b>NOTDEFINED</b>: Undefined accessory</li>

</ul>

<blockquote><small><font color=""#0000FF"">

HISTORY  New Enumeration in IFC 2x4.

</font></small></blockquote>

</EPM-HTML>"

1191;IfcDiscreteAccessoryTypeEnum;"<EPM-HTML>

<p><u>Definition from IAI</u>: This enumeration defines the different types of discrete accessories:</p>

<ul>

<li><b>ANCHORPLATE</b>: An accessory consisting of a steel plate, shear stud connectors or welded-on rebar which is embedded into the surface of a concrete element so that other elements can be welded or bolted onto it later.</li>

<li><b>BRACKET</b>: An L-shaped or similarly shaped accessory attached in a corner between elements to hold them together or to carry a secondary element.</li>

<li><b>SHOE</b>: A column shoe or a beam shoe (beam hanger) used to support or secure an element.</li>

<li><b>USERDEFINED</b>: User-defined accessory</li>

<li><b>NOTDEFINED</b>: Undefined accessory</li>

</ul>

<blockquote><small><font color=""#0000FF"">

HISTORY  New Enumeration in IFC 2x4.

</font></small></blockquote>

</EPM-HTML>"

1200;IfcFastenerTypeEnum;"<EPM-HTML>

<p><u>Definition from IAI</u>: This enumeration defines the different types of fasteners, except for mechanical fasteners:</p>

<ul>

<li><b>GLUE</b>: A fastening connection where glue is used to join together elements.</li>

<li><b>MORTAR</b>: A composition of mineralic or other materials used to fill jointing gaps and possibly fulfilling a load carrying role.</li>

<li><b>WELD</b>: A weld seam between parts of metallic material or other suitable materials.</li>

<li><b>USERDEFINED</b>: User-defined fastener</li>

<li><b>NOTDEFINED</b>: Undefined fastener</li>

</ul>

<blockquote><small><font color=""#0000FF"">

HISTORY  New Enumeration in IFC 2x4.

</font></small></blockquote>

</EPM-HTML>"

1211;IfcMechanicalFastenerTypeEnum;"<EPM-HTML>

<p><u>Definition from IAI</u>: This enumeration defines the

different types of mechanical fasteners:</p>

<ul>

<li><b>ANCHORBOLT</b>: A special bolt which is anchored into conrete, stone, or brickwork.</li>

<li><b>BOLT</b>: A threaded cylindrical rod that engages with a similarly threaded hole in a nut or any other part to form a fastener. The mechanical fastener often also includes one or more washers and one or more nuts.</li>

<li><b>DOWEL</b>: A cylindrical rod that is driven into holes of the connected pieces.</li>

<li><b>NAIL</b>: A thin pointed piece of metal that is hammered into materials as a fastener.</li>

<li><b>NAILPLATE</b>: A piece of sheet metal with punched points that overlaps the connected pieces and is pressed into their material.</li>

<li><b>RIVET</b>: A fastening part having a head at one end and the other end being hammered flat after being passed through holes in the pieces that are fastened together.</li>

<li><b>SCREW</b>: A fastener with a tapered threaded shank and a slotted head.</li>

<li><b>SHEARCONNECTOR</b>: A ring connector that is accepted by ring keyways in the connected pieces; or a toothed circular or square connector that is pressed into the connected pieces.</li>

<li><b>STAPLE</b>: A doubly pointed piece of metal that is hammered into materials as a fastener.</li>

<li><b>STUDSHEARCONNECTOR</b>: Stud shear connectors are cylindrical fastening parts with a head on one side. On the other side they are welded on steel members for the use in composite steel and concrete structures.</li>

<li><b>USERDEFINED</b>: User-defined mechanical fastener</li>

<li><b>NOTDEFINED</b>: Undefined mechanical fastener</li>

</ul>

<blockquote><small><font color=""#0000FF"">

HISTORY  New Enumeration in IFC 2x4.

</font></small></blockquote>

</EPM-HTML>"

1245;IfcConnectionTypeEnum;"<EPM-HTML>

<p>This enumeration defines the different ways how path based elements (such as <I>IfcWallStandardCase</I>) can connect, as shown in Figure 65.</p>

<blockquote class=""history"">HISTORY New type in IFC Release 2.0</blockquote>

<table><tr><td>

<TABLE BORDER=""1"" CELLPADDING=""2"" CELLSPACING=""2"">

<TR>

<TD WIDTH=""260"" VALIGN=""TOP"" ALIGN=""LEFT"">

<P>L-Shape Connection </P>

<UL>

<LI>RelatingConnectionType: AtStart</LI>

<LI>RelatedConnectionType: AtStart</LI>

</UL></TD>

<TD WIDTH=""300""><IMG SRC=""figures/IfcConnectionTypeEnum-Fig03.gif""

WIDTH=""143"" HEIGHT=""132"" BORDER=""0""></TD>

</TR>

<TR>

<TD WIDTH=""260"" VALIGN=""TOP"" ALIGN=""LEFT"">

<P>L-Shape Connection </P>

<UL>

<LI>RelatingConnectionType: AtEnd</LI>

<LI>RelatedConnectionType: AtStart</LI>

</UL></TD>

<TD WIDTH=""300""><IMG SRC=""figures/IfcConnectionTypeEnum-Fig01.gif""

WIDTH=""193"" HEIGHT=""132"" BORDER=""0""></TD>

</TR>

<TR>

<TD WIDTH=""260"" VALIGN=""TOP"" ALIGN=""LEFT"">

<P>T-Shape Connection </P>

<UL>

<LI>RelatingConnectionType: AtPath</LI>

<LI>RelatedConnectionType: AtStart</LI>

</UL></TD>

<TD WIDTH=""300""><IMG SRC=""figures/IfcConnectionTypeEnum-Fig02.gif""

WIDTH=""145"" HEIGHT=""133"" BORDER=""0""></TD>

</TR>

</TABLE>

</td></tr>

<tr><td><p class=""figure"">Figure 65 &mdash; Connection types</p></td</tr>

</table>

</EPM-HTML>"

1257;IfcBeamTypeEnum;"<EPM-HTML>

<p><u>Definition from IAI</u>: This enumeration defines the

different types of linear elements an <i>IfcBeamType</i> object

can fulfill:</p>

<ul>

<li><b>BEAM</b>: A standard beam usually used horizontally.</li>

<li><b>JOIST</b>: A beam used to support a floor or ceiling.</li>

<li><b>HOLLOWCORE</b>: A wide often prestressed beam with a

hollow-core profile that usually serves as a slab component.</li>

<li><b>LINTEL</b>: A beam or horizontal piece of material over an

opening (e.g. door, window).</li>

<li><b>SPANDREL</b>: A tall beam placed on the facade of a

building. One tall side is usually finished to provide the

exterior of the building. Can be used to support joists or slab

elements on its interior side.</li>

<li style=""list-style-type:none"">

<blockquote><small>NOTE  They are also referred to as ""spandrel

panels"", which are parts of a facade and sometimes have

supporting consoles for floor slabs

integrated.</small></blockquote>

</li>

<li><b>T_BEAM</b>: A beam that forms part of a slab construction

and acts together with the slab which its carries. Such beams are

often of T-shape (therefore the English name), but may have other

shapes as well, e.g. an L-Shape or an Inverted-T-Shape.</li>

<li style=""list-style-type:none"">

<blockquote><small>NOTE  In order to distinguish beams by shape,

the assigned <i>IfcProfileDef</i> subtypes provide the shape type

and, if using a subtype of

<small>IfcParameterizedProfileDef</small>, also the shape

parameterization.</small></blockquote>

</li>

<li><b>USERDEFINED</b>: User-defined linear beam element.</li>

<li><b>NOTDEFINED</b>: Undefined linear beam element</li>

</ul>

<blockquote><small><font color=""#0000FF"">HISTORY  New Enumeration

in Release IFC2x Edition 2.</font></small><br>

<small><font color=""#FF0000"">IFC2x4 CHANGE  The enumerators

HOLLOWCORE and SPANDREL have been

added.</font></small></blockquote>

</EPM-HTML>"

1273;IfcColumnTypeEnum;"<EPM-HTML>

<p><u>Definition from IAI</u>: This enumeration defines the

different types of linear elements an <i>IfcColumnType</i> object

can fulfill:</p>

<ul>

<li><b>COLUMN</b>: A standard column element usually used

vertically.</li>

<li><b>USERDEFINED</b>: User-defined linear element.</li>

<li><b>NOTDEFINED</b>: Undefined linear element</li>

</ul>

<blockquote><small>NOTE: This enumeration has been mainly

introduced to allow further detailing of the type information in

future releases of IFC.</small></blockquote>

<blockquote><small><font color=""#0000FF"">HISTORY New Enumeration

in Release IFC2x Edition 2.</font></small></blockquote>

</EPM-HTML>"

1284;IfcMemberTypeEnum;"<EPM-HTML>

<p><u>Definition from IAI</u>: This enumeration defines the

different types of linear elements an <i>IfcMemberType</i> object

can fulfill:</p>

<ul>

<li><b>BRACE</b>: A linear element (usually sloped) often used

for bracing of a girder or truss.</li>

<li><b>CHORD</b>: Upper or lower longitudinal member of a truss,

used horizontally or sloped.</li>

<li><b>COLLAR</b>: A linear element (usually used horizontally)

within a roof structure to connect rafters and posts.</li>

<li><b>MEMBER</b>: A linear element within a girder or truss with

no further meaning.</li>

<li><b>MULLION</b>: A linear element within a curtain wall system

to connect two (or more) panels.</li>

<li><b>PLATE</b>: A linear continuous horizontal element in wall

framing, e.g. a head piece or a sole plate.</li>

<li style=""list-style: none"">

<blockquote><small>NOTE  This head piece or sole plate shall not

be mixed up with planar elements, such as sheets and panels, that

are handled as <i>IfcPlate</i> (and

<i>IfcPlateType</i>).<br></small></blockquote>

</li>

<li><b>POST</b>: A linear member (usually used vertically) within

a roof structure to support purlins.</li>

<li><b>PURLIN</b>: A linear element (usually used horizontally)

within a roof structure to support rafters</li>

<li><b>RAFTER</b>: A linear elements used to support roof slabs

or roof covering, usually used with slope.</li>

<li><b>STRINGER</b>: A linear element used to support stair or

ramp flights, usually used with slope.</li>

<li><b>STRUT</b>: A linear element often used within a girder or

truss.</li>

<li><b>STUD</b>: Vertical element in wall framing.</li>

<li><b>USERDEFINED</b>: User-defined linear element.</li>

<li><b>NOTDEFINED</b>: Undefined linear element</li>

</ul>

<blockquote><font color=""#0000FF"" size=""-1"">HISTORY: New

Enumeration in Release IFC2x Edition 2.</font></blockquote>

<blockquote><font color=""#FF0000"" size=""-1"">IFC2x Edition 2

Addendum 1 CHANGE  The additional identifiers CHORD, PLATE, STUD

are added.<br>

IFC2x Edition 3 CHANGE  The additional identifier MULLION has

been added.</font></blockquote>

</EPM-HTML>"

1309;IfcWallTypeEnum;"<EPM-HTML>

<p><u>Definition from IAI</u>: This enumeration defines the

different types of walls an <i>IfcWallType</i> object can

fulfill:</p>

<ul>

<li><b>STANDARD</b>: A standard wall, extruded vertically with a

constant thickness along the wall path.</li>

<li><b>POLYGONAL</b>: A polygonal wall, extruded vertically,

where the wall thickness varies along the wall path.</li>

<li><b>SHEAR</b>: A wall having a non-rectangular cross section

along the wall path.

<ul style=""list-style:none;"">

<li><small>NOTE The potentially misleading term shall not impose

a particular resistance against shear forces, but a particular

shape.</small><br></li>

</ul>

</li>

<li><b>ELEMENTEDWALL</b>: A stud wall framed with studs and faced

with sheatings, sidings, wallboard, or plasterwork.</li>

<li><b>PLUMBINGWALL</b>: A pier, or enclosure, or encasement,

normally used to enclose plumbing in sanitary rooms.</li>

<li><b>MOVABLE</b>: A movable wall that is either movable, e.g. a

folding wall, or a sliding wall, or can be easily removed as a

removable partitioning or mounting wall. Movable walls do

normally not define space boundaries and often belong to the

furnishing system.</li>

<li><b>USERDEFINED</b>: User-defined wall element.</li>

<li><b>NOTDEFINED</b>: Undefined wall element</li>

</ul>

<blockquote><font color=""#0000FF"" size=""-1"">HISTORY  New

Enumeration in Release IFC2x Edition 2.</font></blockquote>

<blockquote><small><font color=""#FF0000"">IFC2x2 ADDENDUM CHANGE 

The enumerator <i>POLYGON</i> has been changed to

<i>POLYGONAL</i>.</font></small><br>

<small><font color=""#FF0000"">IFC2x3 CHANGE  The enumerators

<i>ELEMENTEDWALL</i> and <i>PLUMBINGWALL</i> have been

added.</font></small><br>

<small><font color=""#FF0000"">IFC2x4 CHANGE  New enumerator

MOVABLE has been added.</font></small></blockquote>

</EPM-HTML>"

1328;IfcSlabTypeEnum;"<EPM-HTML>

<p>

<u>Definition from IAI</u>: This enumeration defines the

available predefined types of a slab. The

<i>IfcSlabTypeEnum</i> can be used for slab occurrences,

<i>IfcSlab</i>, and slab types, <i>IfcSlabType</i>. A

special property set definition may be provided for each

predefined type.

</p>

<blockquote>

<p>

<font color=""#0000FF""><small>HISTORY  New type in IFC

Release 2.0</small></font>

</p>

</blockquote>

<table border=""1"" cellpadding=""2"" cellspacing=""2"" width=

""80%"">

<tbody>

<tr>

<td valign=""top"">

<b>Floor</b>

</td>

<td valign=""top"">

The slab is used to represent a floor slab.<br>

</td>

</tr>

<tr>

<td valign=""top"">

<b>Roof</b>

</td>

<td valign=""top"">

The slab is used to represent a roof slab (either

flat or sloped).<br>

</td>