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 Evolutionary Development This model is based on the idea of ​​developing an initial implementation that will generate user comments so that improvements can be made through multiple versions until a sufficient system can be developed. Apart from having separate activities this model provides quick and simultaneous feedback There are 2 types in this model Evolutionary programming     Where the purpose of the process is to work with the customer to generate needs and deliver the final system to the user / customer. Development begins with the parts of the system that are understood. The system is developed by adding features as suggested by the customer. Modeling Where the purpose of evolutionary development in this type is to find out the needs of the customer and develop a better definition of requirements for the system. The model / example is focused on researching parts of customer needs that are less understood. Evolutionary programming is important when it is difficult to make de

 The software process model is still the object of research, but now there are many different general models or paradigms of software development, including: Waterfall approach Contains a series of process activities as described above and presented in a separate process, such as requirements specification, software design implementation, testing and so on. After each step is defined, it is signed off and development continues in the next step.  Waterfall This model has been obtained from other engineering processes. This model offers a more realistic way of making software. The steps that are important in this model are Determination and analysis of specifications Services, constraints and objectives resulted from consultation with system users. Then they are created in a form that is understandable to both the user and the development staff. System and software design The system design process divides the requirements into software or hardware systems. This process produces a whole s