Unable to see and imagine how software, only a small change will entail a series of major changes of the software. Thus, unpredictability, imagine the software will be developed like so many potential factors do have to change the software. Potential difficulties from the start or is in the process of implementation also makes the software more difficult to visualize. Software exists to a certain shape, can be considered invisible, nor have a document or picture about Software, it is difficult to imagine it.
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