Evaluating System Effectiveness

1
Evaluating System Effectiveness

• Chapter 22

2
Overview of the effectiveness evaluation process

• Identify the objectives of the IS
• Select the measures to be used
• Identify data sources
• Obtain ex ante values for measures
• Obtain ex post values for measures
• Assess the system impact

3
A model of IS Effectiveness
System quality
Inf. quality
Perceived ease of use
Computer self-efficacy
Perceived usefulness

• Use
• Amount
• type

IS satisfaction
Individual impact
Organizational impact