May 2017
Intermediate to advanced
230 pages
7h 27m
English
Content preview from Mastering Non-Functional Requirements
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Capacity
This NFR defines the ways in which the system is expected to scale-up by increasing capacity, hardware, or adding machines based on business objectives.
Capacity is delivering enough functionality required for the end users. A request for a web service to provide 1,000 requests per second when the server is only capable of 100 requests a second, may not succeed. While this sounds like an availability issue, it occurs because the server is unable to handle the requisite capacity.
A single node may not be able to provide enough capacity, and one needs to deploy multiple nodes with a similar configuration to meet organizational capacity requirements. Capacity to identify a failing node and restart it on another machine or VM is a NFR. ...
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