What is the difference between functional and non functional requirement? [closed]
What is the difference between functional and non-functional requirements in the context of designing a software system? Give examples for each case. LBushkin A functional requirement describes what a software system should do, while non-functional requirements place constraints on how the system will do so. Let me elaborate. An example of a functional requirement would be: A system must send an email whenever a certain condition is met (e.g. an order is placed, a customer signs up, etc). A related non-functional requirement for the system may be: Emails should be sent with a latency of no