Facets

A facet augments catalogue searches. More than one facet is used in a typical Arena configuration. In general, facets display index values for selected fields. A search may be executed by clicking one of the fields. Depending on the configuration, it will refine the search already executed, or make a new search using the cluster value of the facet.

This portlet is used for catalogue records; it is articles equivalent to the portlet Articles: facets when it comes to articles.

See also: Articles: facets

Facets are used in two ways:

• For an initial search, facets are used to limit the search. This produces a subset of the existing search results – it does not modify the search criteria.
• In search details facets are used to expand the search. A facet may be clicked upon to remove it, which expands the search. When viewing a title, other facets may also be displayed, such as to find other titles by the same author, which will start a new search.

There are four types of facets for catalogue searches:

• Discovery facet: This will drill-down to refine a search. After activation, the content of the facet reflects the new search result. For example, a search result may include a number of different media, and you can select to make a new search with only book by clicking books in the facet. A facet portlet with this setting should always be available with the result sets from catalogue search (default).
• Inspirational facet: This does not relate to a search and it not used for catalogue searches. It works like a table of contents and can be used on an articles page, as a form of menu to find articles.
• Single item facet: This refers to a detail presentation of one record or article. It is used to perform related searches; for example, to find further titles by the same author. It should be available on the detail presentation of a catalogue record page (default).
• Subject facet: This facet is used to show the connection between catalogue records and articles. Subject words from the Catalogue record portlet are used for the connection. This facet will enable the user to go to articles related to the specified record or go to records related to the specified article. It should be placed on the detail presentation of a catalogue record or article page. Thus; if subject words have been added to articles, and this Facet portlet (configured as subject facet) has been added to the article details page, links in this portlet will lead to catalogue records with the same subject words as the article.

Configuration

Setting	Description	Comment
Facet display order	Select in which order to display the facets by clicking the arrow up or down
Facet history maximum count	Each time you click on a term in a facet, the search result is redefined. Likewise, the search result is redefined when you unclick the term that you have clicked on in the facet. Define the number of clicked terms in a facet that the facet can remember, that is, how many clicks back it can redefine the search result.	Default: 4 Most often the other facet terms disappear when you select a term (since the search result is redefined for the selected term), for example in the facet By. But sometimes, for example in the facet Subject, some terms can still be valid even though you filter on another term. You can then select one more term and “add” that to the already selected filter. This you can do xx times before the facet forgets the first one (you cannot redefine the search result unclicking that one anymore) and adds the last one instead.
Facets to be displayed	Choose from Author, Holding branch, Category, Classification, Code, Content Type Facet, Department, Entity type, Language, Original language, Target Audience, Media Class, Organization, Publication year, Resource, Type, Shelf mark, Subject, Series, User tags	Default: Author, Content Type Facet, Entity type, Language, Target Audience, Media Class, Publication year, Subject and User tags
Facets with hit numbers	Select the facets to show with number of hits	Default: all fields
Fuzzy search	Select which fields to display in a fuzzy search.	The fields need to be the same in the following portlets: Catalogue record, Facets, Results list, Search results, Tags: tag cloud.
Fuzzy search similarity factor	Value for the fuzzy search factor, between 0 and 1. The higher the value, the more should the search result resemble the original search string.	This value needs to be the same in the following portlets: Catalogue record, Facets, Results list, Search results, Tags: tag cloud. Default: 0.5
Number of facets shown	Number of facets to show in each facet	If there are more than the defined number, there will be a Show more link. Default: 5
Organization	Shows the organization hierarchy for a branch	Default: true
Search facet type	Select which type of facet to use	The facet type decides how the facet is used.
Show Help link		Default: false
URL to catalogue search results	The page where to show the search result.	Default: search