Applying and parameterizing advanced visualization tools for solving
different problems can be difficult for users, who are not necessarily
visualization experts. The visualization community has begun to address this
problem by developing assistive approaches under different labels. In this
work, we propose an initial version of a characterization scheme for guidance
in visualization. With the help of the characterization, the visualization
community will be able to categorize existing approaches and to identify
white spots, which are so far underrepresented and require more research.