###### 3.1.5.1.4 hasKind

The <hasKind> element specifies that the contained hierarchy expresses KIND-OF relationships between subjects.

In a KIND-OF hierarchy, the child subject is a particular variety of the parent subject. A KIND-OF hierarchy is sometimes known as an IS-A, generic, or subsumption hierarchy.

###### Contains

Doctype | Content model
subjectScheme | ( (topicmeta) (optional) then (data or data-about or subjectdef or subjectHead or topicref or (anchorref or keydef or mapref or topicgroup or topichead or topicset or topicsetref) ) (any number) )

###### Contained by

Doctype | Content model
subjectScheme | subjectScheme, subjectdef

###### Inheritance

- map/topicref subjectScheme/hasKind

###### Example

This examples specifies that cars, trucks, and motorcycles are kinds of vehicles. In addition, compact, sedan, and station wagon are each a kind of car, while pickup and van are each a type of truck.

    <subjectScheme>
      <hasKind>
        <subjectdef keys="vehicle" navtitle="Vehicle">
          <subjectdef keys="car" navtitle="Passenger car">
              <subjectdef keys="compact" navtitle="Compact car"/>
              <subjectdef keys="sedan" navtitle="Sedan"/>
              <subjectdef keys="stationWagon" navtitle="Station wagon"/>
          </subjectdef>
          <subjectdef keys="truck" navtitle="Truck">
              <subjectdef keys="pickup" navtitle="Pickup truck"/>
              <subjectdef keys="van" navtitle="Van"/>
          </subjectdef>
          <subjectdef keys="motorcycle" navtitle="Motorcycle"/>
        </subjectdef>
      </hasInstance>
    </subjectScheme>

###### Attributes

Name | Description | Data Type | Default Value | Required?
navtitle | Specifies the title of the topic as it will appear in the navigation or tables of contents that are generated from the map. Beginning with DITA 1.2, the preferred way to specify the navigation title in a map is with the navtitle element, available inside the topicmeta element. | CDATA | #IMPLIED | No
href | A pointer to the resource represented by the <topicref>. See 3.4.2.1 The href attribute for detailed information on supported values and processing implications. References to DITA content cannot be below the topic level: that is, you cannot reference individual elements inside a topic. References to content other than DITA topics should use the format attribute to identify the kind of resource being referenced. | CDATA | #IMPLIED | No
keys | Introduces one or more global identifiers for a resource referenced from a map. See 3.4.2.2 The keys attribute for details on how to use the keys attribute. | NMTOKEN | #IMPLIED | No
processing-role | Describes the processing role of the referenced topic. The processing default is "normal". normal Normal topic that is a readable part of the information. resource-only The topic is used as a resource for processing purposes, but is not a readable unit of information on its own. This topic should not be included in a rendered table of contents, and the topic should not be rendered on its own. | (normal | resource-only | -dita-use-​conref-​target) | #IMPLIED | No
scope | The scope attribute identifies the closeness of the relationship between the current document and the target resource. See 3.4.2.10 The scope attribute for more information on values. | (local | peer | external | -dita-use-​conref-​target) | #IMPLIED | No
format | The format attribute identifies the format of the resource being referenced. See 3.4.2.9 The format attribute for details on supported values. | CDATA | #IMPLIED | No
type | Describes the target of a reference. See 3.4.2.8 The type attribute for detailed information on supported values and processing implications. | CDATA | #IMPLIED | No
univ-atts attribute group (includes select-atts, id-atts, and localization-atts groups) | A set of related attributes, described in 3.4.1.3 univ-atts attribute group |  |  |
global-atts attribute group (xtrf, xtrc) | A set of related attributes, described in 3.4.1.2 global-atts attribute group |  |  |
class, outputclass, keyref | Class and outputclass are described in 3.4.1.9 Other common DITA attributes |  |  |

Previous Topic: 3.1.5.1.3 hasInstance

Next Topic: 3.1.5.1.5 hasNarrower

Parent Topic: 3.1.5.1 Subject scheme maps

Sibling Topics:

3.1.5.1.1 subjectScheme

3.1.5.1.2 schemeref

3.1.5.1.3 hasInstance

3.1.5.1.5 hasNarrower

3.1.5.1.6 hasPart

3.1.5.1.7 hasRelated

3.1.5.1.8 enumerationdef

3.1.5.1.9 elementdef

3.1.5.1.10 attributedef

3.1.5.1.11 defaultSubject

3.1.5.1.12 subjectHead

3.1.5.1.13 subjectHeadMeta

3.1.5.1.14 subjectdef

3.1.5.1.15 relatedSubjects

3.1.5.1.16 subjectRelTable

3.1.5.1.17 subjectRelHeader

3.1.5.1.18 subjectRel

3.1.5.1.19 subjectRole