This certification has been developed in accordance with the guidelines from the European Federation of Psychologists' Associations The distributor of Diversity Icebreaker has made public the documentation it had submitted to Det Norske Veritas. In 2016, the Diversity Icebreaker has successfully passed the Det Norske Veritas Germanischer Lloyd triennial recertification. This time the distributor of Diversity Icebreaker also made the documentation public. Further conceptual work needs to be carried out for comparing the three categories with other psychological tools concerning for instance communication preferences, problem solving styles and thinking styles. The connection between the use of Diversity Icebreaker as a tool to measure as well as the development of the categories during the seminar, mix several theoretical traditions (psychology, sociology and linguistics). So far, it is not clear how this can be handled theoretically and which practical implications that will follow. Despite that Diversity Icebreaker is widely used and there are much information available, there are few articles published in referee based journals.