Design and operate document-based data models. Covers preparing and quality-assuring the data, methodologically sound analysis, visualising results and presenting them audience-appropriately as a basis for decisions.Design and operate document-based data models. Covers preparing and quality-assuring the data, methodologically sound analysis, visualising results and presenting them audience-appropriately as a basis for decisions.Design and operate document-based data models. Covers preparing and quality-assuring the data, methodologically sound analysis, visualising results and presenting them audience-appropriately as a basis for decisions.