System Development Life Cycle Flashcards

What is a prototype in SDLC?

Answer: An early working model of a system used to gather user feedback

A prototype is a preliminary working model of a system built to demonstrate functionality and gather user feedback before full development begins.

In the context of SDLC, what is unit testing?

Answer: Testing individual components or modules in isolation

Unit testing involves testing individual software components or functions in isolation to verify each unit works correctly before integration.

Which SDLC phase converts system requirements into detailed technical specifications?

Answer: Systems design

The systems design phase translates business requirements from analysis into detailed technical specifications including architecture, data models, and interface designs.

What is the purpose of a data flow diagram (DFD) in SDLC?

Answer: To graphically represent how data flows through a system

A Data Flow Diagram (DFD) graphically depicts how data moves through a system, showing processes, data stores, and external entities.

The Spiral SDLC model is best known for incorporating:

Answer: Risk analysis and iterative refinement

The Spiral model combines iterative development with systematic risk analysis at each cycle, making it suitable for large, complex, high-risk projects.

What does 'parallel conversion' mean in SDLC implementation?

Answer: Running old and new systems simultaneously until the new system is verified

Parallel conversion runs both the old and new systems simultaneously, comparing outputs until confidence in the new system is established before fully switching.