Management information and control system question and answer

A Management Information System ICT Revision Questions and Answers

Five approaches to systems building are:
• traditional systems lifecycle
• prototyping
• application software package
• end user development
• outsourcing
Describe one advantage and disadvantage of each approach.
Answer
Traditional systems lifecycle
Advantage
Useful for large projects that need formal specifications and tight management control over each stage
Disadvantage
Rigid and costly, not well suited for unstructured, decision oriented applications

Prototyping
Advantage
Encourages end user involvement in development and iteration of system
Disadvantage
Rapid creation can result in systems that have not been properly tested or documented

Application software package
Advantage
Eliminated need for writing software cuts down on design, testing, installation and maintenance
Disadvantage

Software may not meet precise specifications, software may not be changed easily

End user development
Advantage
Improved requirements determination, increased end-user participation in development
Disadvantage
Quality of software quality not easily controlled

Outsourcing
Advantage
Save development costs, no need for internal information systems staff Disadvantage
Less control over information systems, dependency on external vendors



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