"In the early 2000s retailers started using faceted search, leading to its ubiquity as of 2012 in their online storefronts."

- In a nutshell -
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* Faceted search, also called faceted navigation or faceted browsing, is a technique for accessing information organized according to a faceted classification system,

* allowing users to explore a collection of information by applying multiple filters.

* A faceted classification system classifies each information element along multiple explicit dimensions, called facets, enabling the classifications to be accessed and ordered in multiple ways rather than in a single, pre-determined, taxonomic order.

- Features -
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These are the module parameters:

- Section - Parent section of categories to be shown.
- Category List Mode - 1, 2, 3, ... 9 Levels.
- Order - Alphabetically / Id / Counter Desc / Position / Random
- Show Counter - Hits / Entries
- Hide Empty Categories - Yes / No
- Category List Mode - Start Level - 1, 2, 3, ... 9 Levels.
- Count - The number of items to display (default is 100).

- Requirements -
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SobiPro 1.1 (recommended), or superior / SobiPro 1.0.8 is supported in compatibility mode
Joomla 3 / Joomla 2.5, or superior
PHP 5.3, or superior
MySQL 5.5 (recommended), or superior

- Change Log -
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--- Updates in 5.4.0 - 17th June 2014
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* NEW: Faceted Search Module
* Usability improvements
* Improved Help / New tutorials
* FOF v2.2.1, Backbone JS v1.1.5, Font Awesome v4.1