School of Computing has a small library not associated with the university’s main library. The library has a collection of information systems textbooks and computer science journals. The library uses an Excel spreadsheet to manage the library, and the challenge is that when borrowers get books from the library, they return them late or sometimes never return them. The borrowers include students and all school computing staff. You were approached to write a software program to track late returns and non-returned books.

Identify two common types of requirement discovery in the context of the library system