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Waterfall Model Interview Questions & Answers - Learning Mode
COOLINTERVIEW.COM TESTING MODELS INTERVIEW QUESTIONS WATERFALL MODEL INTERVIEW QUESTIONS QUESTIONS & ANSWERS - LEARNING MODE

Waterfall Model Interview Questions & Answers - Learning Mode

The waterfall model is a sequential design process, used in software development processes, in which progress is seen as flowing steadily downwards (like a waterfall) through the phases of conception, initiation, analysis, design, construction, testing, production/implementation and maintenance. It is also referred to as a linear-sequential life cycle model. It is very simple to understand and use. In a waterfall model, each phase must be completed before the next phase can begin and there is no overlapping in the phases. Waterfall model is the earliest SDLC approach that was used for software development.

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Waterfall Model Interview Questions & Answers - Learning Mode
Try Waterfall Model Interview Questions & Answers - Exam Mode
Question: Explain Waterfall Model Supporting arguments?

Answer: Time spent early in the software production cycle can lead to greater economy at later stages. It has been shown that a bug found in the early stages (such as requirements specification or design) is cheaper in terms of money, effort and time, to fix than the same bug found later on in the process. ([McConnell 1996], p. 72, estimates that "a requirements defect that is left undetected until construction or maintenance will cost 50 to 200 times as much to fix as it would have cost to fix at requi Source: CoolInterview.com
Question: Explain some Advantages of Waterfall Model?

Answer: ► Testing is inherent to every phase of the waterfall model
► It is an enforced disciplined approach
► It is documentation driven, that is, documentation is produced at every stage Source: CoolInterview.com
Question: What is the waterfall model?

Answer: The waterfall model derives its name due to the cascading effect from one phase to the other. In this model each phase well defined starting and ending point, with identifiable deliveries to the next phase. Source: CoolInterview.com
Question: Explain Disadvantages of Waterfall Model?

Answer: he waterfall model is the oldest and the most widely used paradigm.
However, many projects rarely follow its sequential flow. This is due to the inherent problems associated with its rigid format. Namely:

► It only incorporates iteration indirectly, thus changes may cause considerable confusion as the project progresses.

► As The client usually only has a vague idea of exactly what is required from the software product, this WM has difficulty accommodating the natura Source: CoolInterview.com
Question: What is waterfall model?

Answer: The waterfall model is a sequential software development process, in which progress is seen as flowing steadily downwards (like a waterfall) through the phases of Conception, Initiation, Analysis, Design (validation), Construction, Testing and maintenance. Source: CoolInterview.com
Question: Explain Waterfall Modified models?

Answer: In response to the perceived problems with the pure waterfall model, many modified waterfall models have been introduced. These models may address some or all of the criticisms of the pure waterfall model.[citation needed] Many different models are covered by Steve McConnell in the "lifecycle planning" chapter of his book Rapid Development: Taming Wild Software Schedules. Source: CoolInterview.com
Question: What you meant by Criticize Waterfall Model?

Answer: The waterfall model is argued by many to be a bad idea in practice. This is mainly because of their belief that it is impossible for any non-trivial project to get one phase of a software product's lifecycle perfected, before moving on to the next phases and learning from them.

For example, clients may not be aware of exactly what requirements they need before reviewing a working prototype and commenting on it; they may change their requirements constantly. Designers and programmers m Source: CoolInterview.com
Question: Explain the waterfall model phases?

Answer: The waterfall model phases are followed in order:

1. Requirements specification
2. Design
3. Construction (AKA implementation or coding)
4. Integration
5. Testing and debugging (AKA Validation)
6. Installation
7. Maintenance Source: CoolInterview.com

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