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Added link to a newly released, non-commercial guide on the technique. |
Added links to the two commercial tree-testing tools on the market. |
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== Tools ==
Tree testing was originally done on paper (typically using [[index cards]]), but can now also be conducted using specialized software such as [http://www.optimalworkshop.com/treejack Treejack] and [http://www.userzoom.co.uk/software/tree-testing/ UserZoom].
== References ==
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