Types of SDLC Models
2.6.1 Waterfall Model Description: Sequential, linear approach where each phase must be completed before the next begins. Key Characteristics: Sequential phases with limited overlap. Heavy emphasis on planning, schedules, budgets, and documentation. Formal sign-offs after each phase. Strengths: Suitable for less experienced teams. Easy to track progress. Ensures quality, reliability, and maintainability. Weaknesses: Inflexible and