Christoph Samitsch investigates whether decision-making efficiency is being influenced by the quality of data and information. Results of the research provide evidence that defined data quality dimensions have an effect on decision-making performance as well as the time it takes to make a decision. Contents Recent research of data and information quality, as well as decision support systems Presentation of factors influencing decision-making efficiency Presentation of research method including results Target Groups Researchers and students in the field of Information Systems, Computer Science, Information Science, and Management Professionals in the field of Data Science, Software Engineering, Data Warehousing, Strategic Management The Author Christoph Samitsch studied Management, Communication & IT at Management Center Innsbruck (MCI), Austria.