System Development Life Cycle
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1
What does SDLC stand for?
System Development Life Cycle
2
What is another name for SDLC?
Applications development cycle
3
What is the purpose of SDLC?
To establish a structured approach to systems analysis and design
4
What does structured analysis use to plan and manage system development?
The SDLC concept
5
What kind of projects traditionally used SDLC?
Large, complex projects requiring extensive development periods (more than 1 year)
6
What are criticisms of SDLC?
It can be complicated, results may not satisfy the user, and it can be expensive in money, time, and effort
7
What does the SDLC model usually include?
Five steps providing a common understanding of phases and activities
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What is the first SDLC phase?
Systems Planning
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What is the purpose of Systems Planning?
To perform a preliminary investigation to evaluate an IT-related business opportunity or problem
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What is the deliverable of Systems Planning?
Preliminary investigation report
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What is the second SDLC phase?
Systems Analysis
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What is the purpose of Systems Analysis?
To build a logical model of the new system
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What techniques are used in Systems Analysis?
Fact-finding techniques like interviews and surveys
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What is the deliverable of Systems Analysis?
System requirements document
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What is the third SDLC phase?
Systems Design
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What is the purpose of Systems Design?
To create a physical model that satisfies documented requirements
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What is the deliverable of Systems Design?
System design specification
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What is the fourth SDLC phase?
Systems Implementation
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What happens in Systems Implementation?
The new system is constructed, tested, documented, and installed
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What is the deliverable of Systems Implementation?
A completely functioning and documented information system
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What is the fifth SDLC phase?
Systems Security and Support
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What is the purpose of Systems Security and Support?
To ensure the system is secure, reliable, maintainable, and scalable
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What are maintenance changes?
Corrections of errors and adaptations to environmental changes
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What are enhancements in Systems Security and Support?
New features and benefits to maximize return on IT investment
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What are security controls in SDLC?
Safeguards against external and internal threats
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What does scalable design mean?
The system can expand to meet new business requirements and volumes
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What is a systems development methodology?
A standard process followed to analyse, design, implement, and maintain an IS
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Why is systems development methodology important?
It ensures consistency, reduces time and cost, encourages user involvement, and improves quality
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What does a systems development methodology help produce?
Complete and accurate design specifications and documentation
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How does systems development methodology affect user requirements?
It helps ensure user requirements are met
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What is the Waterfall Methodology?
A specific method for implementing SDLC
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Is the Waterfall Methodology the same as SDLC?
No, it is not equivalent to SDLC itself
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What is the main problem with the Waterfall Methodology?
Its inflexible division of a project into separate stages
34
Why is the Waterfall Methodology unsuitable in some cases?
Because commitments are made early and it is difficult to react to changing requirements
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