What is WaterFall Model?The Waterfall Model was the first Process Model to be introduced. 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. The waterfall model is the earliest SDLC approach that was used for software development. Show
In "The Waterfall" approach, the whole process of software development is divided into separate phases. The outcome of one phase acts as the input for the next phase sequentially. This means that any phase in the development process begins only if the previous phase is complete. The waterfall model is a sequential design process 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. As the Waterfall Model illustrates the software development process in a linear sequential flow; hence it is also referred to as a Linear-Sequential Life Cycle Model. What are the different phases of the waterfall model?
All these phases are cascaded to each other in which progress is seen as flowing steadily downwards (like a waterfall) through the phases. The next phase is started only after the defined set of goals is achieved for the previous phase and it is signed off, so the name "Waterfall Model". What are the pros and cons of the waterfall methodology?Advantages of the Waterfall Model
Disadvantages of Waterfall Model
When to use the waterfall model?
Which software development method uses a linear structured development cycle that completes each step before continuing to the next phase?The waterfall methodology uses a sequential or linear approach to software development. The project is broken down into a sequence of tasks, with the highest level grouping referred to as phases.
In which phase of the SDLC life cycle is the feasibility study done to determine if the project is worth pursuing?The preliminary investigation sometimes is called a feasibility study. The goal of this part of the phase is to determine if the project is worth pursuing.
Which type of software is copyrighted and distributed for free for a trial period and then requires you to send payment to continue using the program?Shareware is commercial software that is distributed free to users, eventually either requiring or encouraging users to pay for the continued support of the software. You might see shareware in formats that paywall advanced features or offer the full package for a limited time.
What type of software monitors all incoming and outgoing traffic for your computer and blocks suspicious activity?A Firewall is a network security device that monitors and filters incoming and outgoing network traffic based on an organization's previously established security policies.
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