Model (prototype) are shown in Figure 3. In it, a process that was started by gathering requirements in the presence of representatives of both the developer and the client aimed at defining the overall goal of the systems software after this, at the same time noting all these requests can know and luợc profile the group required would need to be clarified. Then, perform a quick design focus convey these aspects through prototype to the customer can visualize, evaluate, complete all required for help system software. This not only helps to refine the requirements, but at the same time help our development team understand what more needed to be developed. Following the period as this prototype can be a waterfall model or cycle may well be a different model.Note, the prototype is often done quickly in a short time should not be built on the same development tools and environments of software construction phase actually later. Prototype did not set a goal of recycling used for real development stage then.
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