Refresher/m/SDLC/Requirements

References
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Requirements
Requirements - Part 2
   
Requirements - Part 2
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 Non-functional requirement: Execution qualities and Evolution qualities
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 Execution qualities: observable at run time, e.g. security and usability
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 Evolution qualities: embodied in the software static structure, e.g. testability, maintainability, extensibility and scalability
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 High performance: C++ providing close to real time processing
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 High usability: best practices in UI, e.g. WPF
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 WPF business case: massive increase in testability through separation of program logic fron the UI
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 High security: SSL, DMZ, and a dozen other best practices in security
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 Techniques for requirements: user stories, functional specification, and UI mockups
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 Requirements tracing: documenting the life of and tracking the changes to requirements
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 Forward tracing: ability to show system impact when a requirement is changed
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 Backward tracing: ability to show user impact when the system is changed
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 Sample requirements tool: Open Source Requirements Management Tool