Waterfall Model.pptxWaterfall Model.pptx

Waterfall model in software engineering

1. Waterfall Model Structured Software Process

2. The Waterfall model is a classic sequential software development process . It follows a linear progression through distinct phases such as requirements, design, implementation, testing, and maintenance. This model emphasizes completing each phase fully before moving to the next, ensuring clarity and structured progress throughout the project lifecycle. Introduction

3. Waterfall Model Overview

4. The Waterfall model is a linear and sequential approach to software development. It aims to deliver complete, well-documented products by strictly following defined phases. This method suits projects with clear requirements and less need for iterative revisions, providing predictable timelines and scope control. Definition and Purpose

5. Key Characteristics This model features strict phase completion with no overlap, making project tracking straightforward. Its main traits include documented requirements upfront, systematic progress from one stage to another, and an emphasis on thorough testing after implementation. However, it lacks flexibility for changes during later stages.

6. Advantages and Limitations The Waterfall model offers clear structure and easy progress tracking, making it ideal for projects with well-defined requirements. Its sequential approach minimizes overlapping tasks and simplifies project management. However, it is inflexible to changes during development, and issues found late in the process can be costly. Lack of iterative feedback limits adaptability to evolving client needs.

7. Phases and Diagram

8. This phase involves gathering and documenting all functional and non-functional requirements from stakeholders. It serves as a foundation for the entire project, ensuring clarity of client expectations. Accurate and detailed requirements are critical because changes later in the process are difficult and costly to incorporate. Requirements Analysis

9. Design, Implementation, and Testing The design phase translates the requirements into system architecture and specifications. Implementation follows with actual coding of modules. Once development is complete, the testing phase rigorously evaluates the system to identify and fix defects. Each phase is completed fully before moving on, ensuring systematic progress and quality control.

10. Deployment and Maintenance Deployment involves delivering the completed system to the client environment. Post-deployment, the maintenance phase handles updates, bug fixes, and possible enhancements. Although changes are possible, the process is less flexible due to the rigid Waterfall structure, emphasizing proactive planning in earlier phases.

11. Conclusions The Waterfall model is a structured and disciplined approach effective for projects with stable requirements. Its clear phase separation supports straightforward management and documentation. However, its inherent rigidity requires thorough upfront planning and limits responsiveness to change, making it less suitable for dynamic or evolving projects.

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