Software Development Lifecycle Flashcards

What is the primary purpose of a Prototype in the SDLC?

Answer: Validate requirements and gather early user feedback

Prototypes are working models used to clarify requirements and get stakeholder feedback before committing to full development.

In Scrum, how is the length of a sprint typically defined?

Answer: It is a fixed time-box, commonly one to four weeks

Scrum sprints are fixed-duration time-boxes that provide a consistent rhythm, typically ranging from one to four weeks.

Which document captures all known bugs, their severity, and their current status during a project?

Answer: Defect log (bug tracker)

A defect log or bug tracker records each identified issue with priority, severity, assignee, and resolution status.

What is 'refactoring' in software development?

Answer: Restructuring existing code without changing its external behavior

Refactoring improves internal code structure — readability, maintainability, or performance — while preserving existing functionality.

Which SDLC model delivers software in incremental releases, each adding more functionality?

Answer: Incremental model

The Incremental model develops and delivers the system in segments, providing usable software at the end of each increment.

What is the purpose of a Requirements Traceability Matrix (RTM)?

Answer: Map requirements to corresponding test cases to ensure full coverage

An RTM links each requirement to its design element, code module, and test case to verify nothing is missed.

In software project management, what does 'scope creep' refer to?

Answer: Gradual and uncontrolled expansion of project requirements beyond the original plan

Scope creep occurs when new requirements are added without adjusting schedule or budget, threatening project success.