Last year, the government of Quebec asked Cognitive Group to do a heuristic evaluation (expert evaluating usability with a list of usability heuristics) and usability testing of their web portal. First, heuristic evaluation is not reliable because:
LeRoi Gourhan, a French Anthropologist, observed that during pre-historic times there was a close relationship between the evolution of the human brain and the hand. In science, the experimentation plays the role of the hand. There is a close relationship between new observations and new scientific ideas.