1) Your client has stipulated that open-source software is to be used. Is this a functional; or non-functional requirement? How early in this life-cycle model can this requirement be handled? Explain your answer.[11.3]

2) Why is there an advantage to using an interpreted language for implementing a rapid prototype, rather than a compiled language? Is there a disadvantage? [11.20]

3) When performing the requirements workflow for a bank payroll product, why is it inadvisable to model the product with Tellers and employees as actors? [11.9]