What is the distinction between functional and nonfunctional

What is the distinction between functional and nonfunctional requirements?

Solution

Answer:

Simple difference between functional and non functional requirements is that functional requirement tell the software what you need to do and non-functional requirement instructs the software how exactly you have to do.

For example : sending a message in the network only when conditions are met is functional

The message should be sent with latency. Functional can be anything like documentation , data manuplation and so on. Non - functional specifies the creteria only.