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Unformatted text preview: and physical design, in which the first describes what it will do and the second describes how it will be achieved. During programming developers imply practical specifications for the system functionality and programmers translate them in computer languages, so it becomes a computer program. Testing intends to check if the computer codes function properly and to find any errors in them. Implementation is the phase in which an old system is replaces with the new one; it has three main versions where in direct (and risky one) the old system is cut of and the new launched, in pilot the new system begins to work in a certain area first, and in phased two systems are combined gradually launching new components. In operation phase companys employees practically use and test new implemented system, while in maintenance developers may update the system for new changes and endlessly debug it....
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This note was uploaded on 06/26/2011 for the course XBIS219 XBIS219 taught by Professor Reider during the Spring '10 term at University of Phoenix.
- Spring '10