DeLone Ephraim R McLean Information Systems Success The Quest for the Dependent Variable The DeLone amp McLean Study It is an attempt to find THE dependant variable to measure I ID: 237413
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Slide1
William H. DeLoneEphraim R. McLean
Information Systems Success: The Quest for the Dependent VariableSlide2
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
&
McLean’s
6 dependant variables.
The 6 dependant variables were found to be related and interdependent and so create an I/
S
success model.Slide3
DeLone & McLean I/S Success ModelSlide4
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 QualitySlide5
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 QualitySlide6
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 UseSlide7
User Perceptions
Who’s satisfaction should be measured: the direct user’s or the user’s 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 SatisfactionSlide8
Effect on performance, decisions, and productivity
Time to decision
Improved productivity
Effectiveness
Individual ImpactSlide9
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 ImpactSlide10
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 FindingsSlide11
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