Transcription of Making the Business Case for Software Performance …
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Making the Business Case for Software Performance …
1 INTRODUCTIONP erformance responsiveness and scalability is amake-or-break quality for Software . Yet, despite wide-spread recognition of the importance of Performance tothe success of a project, many Software products can-not be used as they are initially implemented due toperformance problems. They fail to respond rapidlyenough to user actions or to handle the number oftransactions that occur under peak load Performance failures cost the Software industrymillions of dollars every year. The costs of performancefailures include: Increased Operational Costs Poor perfor-mance means that your staff needs more timeto complete key tasks, or that you need morestaff to complete these tasks in the sameamount of time. In extreme cases, users maybypass the automated system altogether infavor of faster manual processes. Increased Development Costs One companydiscovered, during integration testing, that anonline transaction that should have taken 10seconds could not be completed in less that 60seconds.
2 Software performance engineering (SPE) [Smith and Williams, 2002], [Smith, 1990] provides a systematic, quantitative approach to constructing software systems
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