Reconciling topic and map metadata elements

The <topicmeta> element in maps can contain numerous metadata elements. These metadata elements can have an effect on the parent <topicref> element, any child <topicref> elements, and – if a direct child of the <map> element – on the .

For each element that can be contained in the <topicmeta> element, the following table addresses the following questions:
How does it apply to the topic?
This column describes how the metadata specified within the <topicmeta> element interacts with the metadata specified in the referenced topic. In most cases, the properties are additive. For example, when a topic reference in a map contains <category>installation</category>, <category>installation</category> is added during processing to any metadata that is specified in the topic prolog.
Does it cascade to other topics in the map?
This column indicates whether the specified metadata element cascades to nested <topicref> elements. For example, when a topic reference in a map contains <author>Jane Doe</author>, <author>Jane Doe</author> is added during processing to the metadata for all child topic references. Some elements do not cascade.
What is the purpose when specified on the <map> element?
The map element permits metadata to be specified for the map. This column describes the effect that an element has when specified at this level.
When set on the <map> element, does it apply to all topics referenced in the map?
When specified on the <map> element element, some metadata elements then apply to all the topics that are referenced in the map.
Table 1. <topicmeta> elements and their properties
Element How does it apply to the topic? Does it cascade to child <topicref> elements? What is the purpose when set on the <map> element? When set on the <map> element, does it apply to all topics referenced in the map?
<audience> Add to the topic Yes Specify an audience for the map Yes
<author> Add to the topic Yes Specify an author for the map Yes
<category> Add to the topic Yes Specify a category for the map Yes
<copyright> Add to the topic Yes Specify a copyright for the map Yes
<critdates> Add to the topic Yes Specify critical dates for the map Yes
<data> Add to the topic No, unless specialized for a purpose that cascades No stated purpose No
<foreign> Add to the topic No, unless specialized for a purpose that cascades No stated purpose No
<keytext> Not added to the topic No No stated purpose No
<keywords> Add to the topic No No stated purpose No
<metadata> Add to the topic Yes Specify metadata for the map Yes
<othermeta> Add to the topic No Define metadata for the map Yes
<permissions> Add to the topic Yes Specify permissions for the map Yes
<prodinfo> Add to the topic Yes Specify product info for the map Yes
<publisher> Add to the topic Yes Specify a publisher for the map No
<resourceid> Add to the topic No Specify a resource ID for the map itself No
<shortdesc> Applies only to links created based on this occurrence in the map No Provide a description of the map No
<source> Add to the topic No Specify a source for the map No
<titlealt> Add to the topic before its <titlealt> elements No Specify an alternative title for the map No
<ux-window> Not added to the topic No Definitions are global, so setting at map level is equivalent to setting anywhere else. No