Why Software Systems Fail Essay

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Why Software Systems Fail 1.0 IntroductionIn this report I will be concentrating on the failure of software systems. To understand why software systems fail we need to understand what are software systems. Software systems are a type of information system. This is because a software system is basically a means for hardware to process information. Flynn’s definition of an information system is:"An information system provides procedures to record and make available information, concerning part of an organization, to assist organization-related activities."Humans have been processing information manually for thousands of years, but with the vast increase of demand for knowledge this century has meant that a new method of information…show more content…
Political / Commercial pressures - This can lead to developers skipping parts of the system to save time or money. There are also cases of rivalry between sub-contractors, which damages the design of the system.Incorrect analysis and assumptions - Predictions based on incorrect assumptions of the real world or its behaviour.Not properly tested software implemented in a high risk environment - This is almost guaranteed to lead to systems failure.Poor user-interface - Makes it difficult or even impossible for the user to operate the software system.Incorrect fit between software and hardware - Incorrect specification of the hardware type in the brief, or upgrading the hardware without upgrading the software (or vice-versa).Inadequate training given to the operators - The people who have to use the software are not taught properly how to use the software system or they are expected to learn on their own. Over reliance on the software system - The operators expect their software system to work in all conditions and to perform miracles for them.I will be looking at these types of systems failure with examples. 2.1 Poor software design- the Denver airport automated luggage handling systemAn example of poor software design is the Denver International Airport luggage
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