SDLC models: waterfall, spiral, agile
Software Engineering · Engineering
Study notes
Build a railway booking system: Waterfall would gather all requirements upfront, then design, code, test over 18 months, risking outdated needs. Agile delivers a working booking module in 2-week sprints, getting user feedback early. Spiral suits the safety-critical signaling: each loop prototypes and analyzes risks before committing. Model choice shapes success.