<keywords>
 
 
 Key words are terms that apply to the topic or map.
Usage information
The content of the <keywords> element can
        be used to optimize the rendered output:
- Processors might add metadata to the output format to facilitate search engine optimization.
- Processors might use the content of
            <indexterm>elements to generate an index for a document.
While the <keyword> element can be used
        inline, the <keywords> element is not an
        inline element. The <keywords> element only
        appears in the <topicmeta> or
          <prolog>, and it is used to specify
        keywords that apply to the topic.
Processing expectations
All <keyword> and
          <indexterm> elements contained in the
          <keywords> element are considered part of
        the topic or map metadata. How the content of these elements is
        processed depends on the output medium.
Content model
(<indexterm> | <keyword>)*
Contained by
Contained by
Inheritance
- topic/keywords
The <keywords> element is a base element type. It is defined in the topic module.
Attributes
The following attributes are available on this element: universal attributes.
The following attributes are available on this element: universal attributes.
Example
This section is non-normative.
The following code sample shows how several key words can be associated with a topic that is related to installing software:
<prolog>
    <metadata>
        <keywords>
            <keyword>installing</keyword>
            <keyword>prerequisites</keyword>
            <keyword>wizards</keyword>
        </keywords>
    </metadata>
</prolog>