11. Adherence to the non-functional requirements is also validated post-deployment by monitoring the production systems. 12. The IFPUG functional sizing methodology does not change when measuring the non-functional requirements using SNAP. 13. General analysis compares the proposed part to the functional requirements of that part when installed. 14. Functional requirements for a social business technology platform include:15. Form was no longer to be defined solely by its functional requirements or minimal appearance. 16. The SNAP model consists of four categories and fourteen sub-categories to measure the non-functional requirements . 17. Non functional requirements are not limited to use cases. 18. By IFLA Working Group on the Functional Requirements for Subject Authority Records ( FRSAR ). 19. It usually has no performance or non-functional requirement details. 20. Other non-functional requirements will trace to other system components and be verified at that level.