Waterfall Development Model
Winston W. Royce introduced the Waterfall approach in 1970, comprising five sequential management phases. Each phase depends on deliverables from the preceding one. Waterfall is apt for projects, like software development, where the outcome is predetermined. It excels in scenarios demanding high predictability.
Waterfall Methodology Phases
There are five types of phases of the Waterfall methodology: Requirements, Design, Implementation, Verification, and Maintenance. Below, we discuss each phase.
- Requirement Gathering: This is the first step of starting the linear development model in this phase the main goal is to get the requirements from the stakeholders. At the very beginning of the project, we aim to get more and more information about the project from the client.
- Design: In the designing phase our focus is only on the prototype of the system and quick building of the design by the designing team. It is the second step of the waterfall model.
- ImplementationVerification: In this phase the only focus about the coating part in this step the coating is only the focus of the development team.
- VerificationreferVerification, generally refers to the testing part of the waterfall model in this only testing of the different components is to be done by the testing team.
- Maintainance: This is the final and last step of the classical waterfall method in which only the last part of the development team is to remain and which is the maintenance phase
Advantages of Waterfall Methodology
- Better for small projects: Waterfall model is considered to be a good choice for small projects.
- Cost efficient: It is cost efficiently along with time.
- No technical staff required: Waterfall model does not require hiring special technical staff to handle it.
- Detailed Documentation: Fully documentation is to be done.
- Easy to build: Basic model and easy to build.
Disadvantages of Waterfall Methodology
- Changes cannot be undone: No rollback is possible if in any case reverse is required so there is no rollback is possible.
- Not for big projects: Waterfall model is not suitable for big projects.
- Difficult to accommodate Change Requests: It is difficult to accommodate any change requests after the requirements specification phase is complete.
- Limited Flexibility: The Waterfall Model is a rigid and linear approach to software development, which means that it is not well-suited for projects with changing or uncertain requirements.
What are the Major Types of Project Management?
Leading a team demands unique skills and experience. Project management, with its diverse approaches, requires understanding. Navigating individual work styles, honing leadership skills, and achieving goals necessitate a nuanced grasp of the varied aspects of this challenging role. The following points help you to navigate through the major types of project management:
Table of Content
- What is Project Management?
- Major Types of Project Management
- Waterfall Development Model
- Agile Development Model
- Lean Development Model
- Six Sigma Development Model
- Critical Path Method (CPM)
- Conclusion
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