Some of the performance requirements the BA should consider:

  • Speed to complete a task
  • The accuracy of the results 
  • Safety to the operator 
  • Volumes of data to be held by the product 
  • Ranges of allowable values 
  • Throughput, such as the rate of transactions 
  • The efficiency of resource usage 
  • Reliability, often expressed as the mean time between failures 
  • Availability—the uptime or time periods when users can access the product 
  • Fault tolerance and robustness 
  • Scalability of most of the above

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