COCOA was a program and markup language for generating word counts and concordances written in FORTRAN, from the University College Cardiff and the Atlas Computer Laboratory. It produced keyword-in-context concordances and word frequency profiles for texts, and was considered to be a powerful, highly flexible program for punched card computers.

Version Variation Visualization is an interrelated set of free, usable prototypes for visualizing and exploring culturally important works in relation to their world-wide translations. It allows users to explore either the inlcuded corpora or their own texts via time-maps, alignment maps, parallel views or a concordance view accommodating multiple translations in the same viewer. Version Variation Visualization is particularly valuable for its focus on translation and re-translation of text, and its capacity to accommodate and show multiple version of the same text or passage.