What is Waterfall Model in SDLC? Advantages & Disadvantages of Waterfall Model

- What is SDLC in Software Engineering?
- Two main SDLC categories: Sequential and Iterative.
- What is Waterfall Model?
- Different Phases of Waterfall Model
1. Requirement Gathering
- Collects and documents customer needs.
- Creates Software Requirement Specification (SRS) document.
- Business analysts and product management teams involved.
2. Design Phase
- Creates design documents based on requirements.
- Front-end and back-end designs are developed.
- High-level and low-level designs finalized.
3. Implementation or Coding Phase
- Development team builds software from designs.
- Front-end and back-end development follows design documents.
- Communication protocols and technical details defined.
4. Testing Phase
- Ensures software meets requirements through thorough testing.
- Test cases planned and executed based on SRS document.
- Issues logged as bugs and sent back to development for fixing.
5. Deployment Phase
- Software goes live for customer use.
- DevOps team handles the deployment process.
6. Maintenance Phase
- Fixes bugs and improves the software post-deployment.
- Continuous updates and improvements are made.
Key Characteristics of the Waterfall Model
- Requires each phase to complete before moving forward.
- Emphasizes extensive documentation.
- Has a rigid and inflexible structure.
Advantages of the Waterfall Model
- Clear phases and milestones.
- Defined deliverables at each milestone.
Disadvantages of the Waterfall Model
- Inflexibility to accommodate changes.
- Late testing can be costly.
- Client sees the software only at the end.
- Resource planning challenges.
Table of Contents:
00:00 Introduction
00:35 What is SDLC
01:26 What is Waterfall Model
02:03 Different Phases of Waterfall Model
02:18 Requirement Gathering Phase
03:41 Design Phase
05:24 Implementation Phase
06:08 Testing Phase
07:27 Deployment Phase
07:53 Maintainance Phase
08:24 Key Characteristics of the Waterfall Model
09:03 Advantages of the Waterfall Model
09:22 Disadvantages of the Waterfall Model
#agile #management #programming #scrum #scrummaster #projectmanagement #projectmanager #businessanalyst