#### 8.1.3.4 IfcPerson

| Personne
| Person

This entity represents an individual human being.

> NOTE Many countries have legislation concerning the identification of individual persons within databases. Although the intent of the IFC Model is to act as a specification for data exchange and sharing, an IFC file might in some situations be considered to be a database that enables identification of a particular person under the terms of such legislation. Users should be aware of the constraints of legislation that might apply in the places where IFC files are used.

> NOTE Entity adapted from person defined in ISO 10303-41.

> HISTORY New entity in IFC1.5.1.

> IFC4 CHANGE Attribute Id renamed to Identification. WHERE rule relaxed to allow omission of names if Identification is provided.

XSD Specification:

<xs:element name="IfcPerson" type="ifc:IfcPerson" substitutionGroup="ifc:Entity" nillable="true"/>
<xs:complexType name="IfcPerson">
<xs:complexContent>
<xs:extension base="ifc:Entity"/>
</xs:complexContent>
</xs:complexType>

EXPRESS Specification:

ENTITY IfcPerson;

Identification | : | OPTIONAL IfcStrippedOptional;
FamilyName | : | OPTIONAL IfcStrippedOptional;
GivenName | : | OPTIONAL IfcStrippedOptional;
MiddleNames | : | OPTIONAL LIST [1:?] OF IfcStrippedOptional;
PrefixTitles | : | OPTIONAL LIST [1:?] OF IfcStrippedOptional;
SuffixTitles | : | OPTIONAL LIST [1:?] OF IfcStrippedOptional;
Roles | : | OPTIONAL LIST [1:?] OF IfcStrippedOptional;
Addresses | : | OPTIONAL LIST [1:?] OF IfcStrippedOptional;

| INVERSE

EngagedIn | : | SET OF IfcPersonAndOrganization FOR ThePerson;

| WHERE

IdentifiablePerson | : | EXISTS(Identification) OR EXISTS(FamilyName) OR EXISTS(GivenName);
ValidSetOfNames | : | NOT EXISTS(MiddleNames) OR EXISTS(FamilyName) OR EXISTS(GivenName);

END_ENTITY;

Attribute Definitions:

Identification | : | Identification of the person.
FamilyName | : | The name by which the family identity of the person may be recognized. NOTE Depending on geographical location and culture, family name may appear either as the first or last component of a name.
GivenName | : | The name by which a person is known within a family and by which he or she may be familiarly recognized. NOTE Depending on geographical location and culture, given name may appear either as the first or last component of a name.
MiddleNames | : | Additional names given to a person that enable their identification apart from others who may have the same or similar family and given names. NOTE Middle names are not normally used in familiar communication but may be asserted to provide additional identification of a particular person if necessary. They may be particularly useful in situations where the person concerned has a family name that occurs commonly in the geographical region.
PrefixTitles | : | The word, or group of words, which specify the person's social and/or professional standing and appear before his/her names.
SuffixTitles | : | The word, or group of words, which specify the person's social and/or professional standing and appear after his/her names.
Roles | : | Roles played by the person.
Addresses | : | Postal and telecommunication addresses of a person. NOTE A person may have several addresses.
EngagedIn | : | The inverse relationship to IfcPersonAndOrganization relationships in which IfcPerson is engaged.

Formal Propositions:

IdentifiablePerson | : | Requires that the identification or/ and the family name or/ and the given name is provided as minimum information.
ValidSetOfNames | : | If middle names are provided, the family name or/ and the given name shall be provided too.

Inheritance Graph:

ENTITY IfcPerson

| ENTITY IfcPerson

Identification | : | OPTIONAL IfcStrippedOptional;
FamilyName | : | OPTIONAL IfcStrippedOptional;
GivenName | : | OPTIONAL IfcStrippedOptional;
MiddleNames | : | OPTIONAL LIST [1:?] OF IfcStrippedOptional;
PrefixTitles | : | OPTIONAL LIST [1:?] OF IfcStrippedOptional;
SuffixTitles | : | OPTIONAL LIST [1:?] OF IfcStrippedOptional;
Roles | : | OPTIONAL LIST [1:?] OF IfcStrippedOptional;
Addresses | : | OPTIONAL LIST [1:?] OF IfcStrippedOptional;

| INVERSE

EngagedIn | : | SET OF IfcPersonAndOrganization FOR ThePerson;

END_ENTITY;

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