There are generally six stages, requirement analysis, design, implementation, testing, deployment and maintenance. Analysis is where the requirements are laid out so that the design phase can figure out how to best implement them. Implementation is where most of the work happens, leading to black and white box testing. After the testing phase, the product is rolled out to customers, and the maintenance phase is ongoing from that point on.
Waterfall is one of the software development life cycle model. Waterfall model has five stages.
It consists of different stages of software life cycle.
A waterfall model is a process that was used to develop and manufacture a product before computers became so commonplace. Because it was too cost prohibitive to make changes after the fact, a company used a waterfall model to develop their product. The stages of a waterfall modes are: Conceive, Design, Implement, Test, Deliver.
When we are talking about a big project we Use Water fall model. Water fall model has total of five stages.
Yes, waterfall model is non applicable in some areas. Reason being that we can not go back to the previous stage if we missed something , we have to restart the process.
An incremental model is evolution of waterfall model in which the model is designed ,implemented and tested in increment manner. After the first increment a part of the product is send to the customer and the subsequent is provided in the later stages of increments.
An incremental model is evolution of waterfall model in which the model is designed ,implemented and tested in increment manner. After the first increment a part of the product is send to the customer and the subsequent is provided in the later stages of increments.
In waterfall model, once we come out of the phase, there is no chance of modifying it again. This is one of the major drawback for waterfall model.
Linear sequential model is also called as classic life cycle method, which is also known as waterfall model =>this waterfall model in software process model involes five stages 1. communication 2.planning 3.modeling 4.construction 5.deployment
1)whenever we are developing a small application we go for waterfall model.2)when we have a short term project.3)when we are sure that the requirement never changes.These are the stages in which we adopt the waterfall model.
Advantage of waterfall model : It is simple and easy to use. Dis Advantage of waterfall model : no user feedbacks are taken.
I will try to answer this quickly as I don't have much time. As the name suggests, the waterfall model follows the path of an waterfall. It starts in the first stage of orientation, and ends at the release. It can only go one way (to the end goal) and the stages are very strict (you cant go back to a earlier stage). The Spiral model understands that reality doesn't always follow theory, and that an project should be designed to follow that reality. There are multiple prototypes released, and phases can be repeated until the desired result is reached (hence the spiral). The iterative model combines those two, making (IMHO) the waterfall model more ready for the real world. You should try googling yourself, I found lots of info about the differences in this article about the advantages of the waterfall model: http://www.waterfall-model.com/the-waterfall-model-avantages-and-disadvantages