Learn to identify non-functional test requirements and create modern concise documents that can be shared and published quickly to the important stakeholders in the application lifecycle process. Unlike functional requirements which focus on what an application does, non-functional requirements focus on how it performers, specifically how fast it performs. This requires an understand of how each tier of the application is working. We usually collaborate with he application architect and the QA teams to get the information we need to establish an SLA, measure throughput and establish the maximum capacity for that application.