A spiral model diagram is a diagram that illustrates the spiral model. The spiral model features Planning, Analysis, Development, and Testing. At each iteration of each feature the process is repeated. The spiral model is also known a the spiral lifecycle that is used in information technology(IT). The model is used to illustrate progress in large, expensive and complicated projects in the
. industry. It is very important to follow the steps in order to develop a fully functional system. The new system that will be implemented requires as much details as possible. There must be a preliminary diagram for the new system. There should also be a prototype diagram before moving forward in the development of the new system. After the first prototype is created, there should be a second prototype that improves on the first one. The diagram should illustrate details of the project. It should illustrate the goals, the alternatives and risk analysis.
