Marketing research involves systematically gathering, recording, and analyzing data related to marketing problems or opportunities. The marketing research process includes setting objectives, defining the research problem, assessing the value of research, designing a proposal, specifying data collection methods, selecting samples, collecting and analyzing data, and presenting results in a final report. Marketing research techniques include interviews, questionnaires, attitude measurement, Likert scales, semantic differential scales, projective techniques, group discussions, focus groups, postal research, diary panels, in-home scanning, telephone research, observation, and in-store testing. A marketing information system is a set of procedures and methods for regularly collecting, analyzing, and presenting marketing information to support marketing decisions. It consists of a data bank