Entscheidungsnavi v5.5

With version 5.5, up-to-date tutorials are available for all seven steps. At the same time, a progress control has been implemented to prevent errors or confusion if one wants to make subsequent changes in sub-steps. Subsequent changes to the decision model are still possible, but should now only apply to the main steps. In some menu items, the navi has been given a new and, in our opinion, somewhat fancier look.