In Fluid Topics, it is possible to group together documents that share metadata so that they appear as a single result in the Search page. Documents that are clustered together are more user-friendly than a long list of individual documents.
Different variants ot the Time Machine User Guide share the following metadata: Version, Audience and Language. For this particular document, Audience and Language are monovalued, i.e., only one value exists for each of these metadata keys. Version is multivalued, i.e., more than one value exists for this metadata key. It is possible to cluster results based on the Version metadata key.
Without clustering, variants of the Time Machine User Guide appear as separate results:
When clustered by the Version metadata key, all versions of the Time Machine User Guide appear as a single search result:
Types of clusters
Fluid Topics uses one of three types of clusters to gather results from the same source:
- The metadata value selector when it is possible to distinguish a document by the values of a single metadata key.
- The document selector to distinguish between two documents that share a topic with the same title.
- The variant drawer when it is not possible to distinguish a document by the values of a single metadata key.