QUESTION $2$

$2\mathrm{.}1$ Based on your understanding as Advanced industrial engineering personnel, where can one apply Activity Diagrams? $(3)$

$2\mathrm{.}2$ Outline at least four determinations that an Activity Diagram can be used for, by the system analyst? $(4)$

$2\mathrm{.}3$ Differentiate between the communication diagram and Activity diagrams $(4)$