Abstract: Card-sorting exercises are used to understand how users would intuitively group or sort information topics, in order to better design an instrument that provides these topics, such as a website. When a user is not familiar with some of the topics, they are allowed to leave these items unsorted, in order that wild guesses do not skew the results. The algorithm verifies that the unsorted items are unfamiliar, then tracks instances of unsorted items so that these responses are mathematically removed from the calculations.

Abstract: Card-sorting exercises are used to understand how users would intuitively group or sort information topics, in order to better design an instrument that provides these topics, such as a website. When a user is not familiar with some of the topics, they are allowed to leave these items unsorted, in order that wild guesses do not skew the results. The algorithm verifies that the unsorted items are unfamiliar, then tracks instances of unsorted items so that these responses are mathematically removed from the calculations.

Abstract: A method and system for dynamically representing cluster analysis results. In accordance with the method and system of the present invention, a hierarchical tree is graphically displayed. The hierarchical tree represents cluster analysis of relationships between multiple items utilizing an initial distance constraint value, wherein the graphical display includes a graphically alterable threshold indicator positioned within the hierarchical tree that graphically marks the distance constraint value. The presentation of the graphical display of the hierarchical tree is dynamically altered to reflect a user-determined distance constraint value, in response to user-controlled alteration of the graphical position of the threshold indicator, such that upon changing a distance constraint for a cluster analysis, the hierarchical tree which graphically represents the cluster analysis is dynamically altered.