00431nas a2200145   4500000000100000000000100001008004100002260002000043100002200063700002400085700002300109700002000132700001800152245011500170       2020                            d  bSpringer Nature1 aDaniela Borissova1 aMagdalena Garvanova1 aZornitsa Dimitrova1 aAndrea Pandulis1 aIvan Garvanov00aDecision Support Framework for Composing of Different Questionnaires Based on Business Model with Optimization