Steps are a basic design. At this stage, design ideas will be "realized" in the crude, simple. This phase aims to help businesses to test whether giving false concept than many expected, and decide whether to adjust the concept is not. If the concept is feasible, it will move to the next step, if the concept has many unreasonable, it will consider the extent to change more or less. If the change is small, it will describe the changes attached to the plan and continue to implement, if the changes are substantial, it should go back to stage 1 and 2.
For the technology is at this step, coder will be designed in terms of the interface on top of the service and create one environment simulator to test the service and the user will be worth the ability to perform services or not.
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