William H. DeLone Ephraim R. McLean Information Systems Success: The Quest for the Dependent Variable The DeLone & McLean Study It is an attempt to find THE dependant variable to measure I/S success. The study is a review of research on information systems between 1981 &1988. Among these the research was fitted into DeLone & McLeans 6 dependant variables. The 6 dependant variables were found to be related and interdependent and so create an I/S success model. DeLone & McLean I/S Success Model How good is the hardware Is it quick, reliable? How useful are the features? Is the database relevant and accurate? What is the response time? System Quality What the output is Completeness Relevance Precision If output is a report Clarity Conciseness Readability Physical appearance Measures of Information Quality are subjective and so include a measure of User Satisfaction cross linkage. Information Quality Answers how or why an information system is used Amount of time used Type of information gathered Motivation to use Whether used directly or chauffeured Information Use User Perceptions Whos satisfaction should be measured: the direct users or the users who relies on the information produced by the I/S? This is a easy and reliable tool to measure I/S success and produces very reliable information. But attitudes about the I/S must be separated from those about computers in general User Satisfaction Effect on performance, decisions, and productivity Time to decision Improved productivity Effectiveness Individual Impact Cost reduction as a result of using the I/S Improved profit made by using I/S Cost/Benefit and Return on Investment (ROI) Productivity gains as a result of I/S Major problem in isolating I/S Organizational Impact from other impacts (a hard metric to measure) Organizational Impact In I/S success research there are many variables that can be measured. Pick those, which are most relevant to your research I/S success is a multi-dimensional construct and should be measured as such. The result is is the I/S success Model (arrows indicate direction of effect). Relevant Findings Parallels some of the KEC Checkpoints from Davidson Provides content for these same Checkpoints 3. Consumers (Use & User Satisfaction) 5. Values (System & Information Quality) 6. Process Evaluation (System & Information Quality) 7. Outcome Evaluation (Individual & Organizational Impacts) 8 & 9. Comparative cost-effectiveness (Organizational Impact) Big question: how to know and understand the variables in the six measures & how to control for them? Conclusion