Result the conception of final target size was put forward, an equation for calculating the movement time of target acquisition was obtained, and a new definition of index of difficulty was given.

The idea was to get an index number to help estimate the difficulty of implementing processing tasks (such as creating an XSLT transform) for a vocabulary and the typical USES for the vocabulary.

Most of the issues revolved around difficulty in bookmarking and refreshing pages, and the inability of search engines — which don't support frames — to index the appropriate content.