This process places the user in a central position for both determining system requirements and ensuring they are met.
The benefits of these systems include not only improvements in user efficiency, but also others, such as reduced training costs, reduced user errors, reduced maintenance costs, and increased customer satisfaction. However, the chief requirements in these kinds of systems become to understand the users' information needs. As we argued earlier, the systems analysts cannot determine information needs scientifically, rather the system analysts are required to obtain this needs by projecting an extrovert interpersonal style that fits more closely to an art form.
Design evaluations and maintenance are carried out with users of the systems (Smith and Dunckley, 2002). Although we believe that most of maintenance is routine, but in critical cases how systems are made usable so that users do not suffer their work requires an understanding of working around the system. This phase again clearly shows that maintenance is not a science but often depends on the experience of the users and systems analysts.
Rapid iterations of design and evaluation are often carried in ongoing fashion from early design through implementation. The evaluation steps are performed using an interactive prototyping application that evolves slowly into the final system.
Again, we must understand...
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