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Source of System Errors

For some time now, we have known where the source of system errors is in the systems development life cycle (SDLC). At least 60 to 80 percent of the errors in a system can be traced back to faulty requirements being developed in the requirements-definition phase. The remaining 20 to 40 percent of errors are attributable to all of the other phases combined.

It is imperative, therefore, that a thorough and rigorous analysis be performed to reveal the requirements of the Web site. Otherwise, the developers and programmers are set off on the wrong azimuth, and the eventual site implementation, while technically correct, bears little resemblance to the needs of the users, since these needs were not identified early on.

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