Role of Management Information Systems in Enhancing Decision-Making in Large-Scale Organizations

Abstract

Background: Larger-scale organizations frequently rely on Management Information Systems (MIS) to optimize data collection, integration, and analysis, ultimately shaping more informed managerial and strategic decisions worldwide. Objective: This study aims to investigate how MIS adoption enhances decision-making effectiveness in large-scale entities by evaluating system integration, information quality, and user acceptance, especially under rapidly evolving contemporary market conditions. Methods: In a six-month empirical study (January–June 2023) conducted at the Department of Management of Information Systems, Texas A&M University–Texarkana, we employed a mixed-methods design integrating quantitative surveys (n=200) and qualitative interviews (n=25). Data were analyzed using descriptive statistics, correlation analyses, and thematic coding to explore the influence of MIS features on organizational decision-making outcomes. Additionally, a pilot test validated instrument. Results: Quantitative findings revealed a 42% improvement in decision-making speed (SD=3.5) among departments utilizing MIS compared to those relying on conventional methods (p<0.05). Moreover, organizations deploying integrated MIS experienced a 38% reduction in erroneous decisions (SD=2.7), suggesting significantly enhanced data accuracy (p=0.02). Survey responses indicated that 77% of participants (SD=4.1) perceived MIS as indispensable for strategic planning, while 68% (SD=3.2) reported heightened managerial confidence in data-driven analyses. Qualitative interviews supported these outcomes, highlighting real-time data access and streamlined communication as key contributors to effective decision-making. Overall, these results underscore MIS as a factor in driving both operational efficiency and strategic agility. Notably, a correlation coefficient (r=0.68, p<0.01) affirmed MIS’s beneficial role. Conclusions: These findings confirm that MIS significantly enhance organizational decision-making by promoting data-driven cultures, increasing accuracy, and advancing strategic agility across large-scale enterprises, fostering long-term competitiveness.