Question $2($Marks: $10)$

Answer all the questions below.

Q$\mathrm{.}2\mathrm{.}1$ Define functional requirements. $(2)$

Q$\mathrm{.}2\mathrm{.}2$ Users may suggest many requirements, but the analyst together with the users

need to identify which functions are important.

Discuss the need to prioritise requirements.

$(5)$

Q$\mathrm{.}2\mathrm{.}3$ List three headings that form part of the System Vision Document.