Describe Requirements Engineering. Illustrate how requirements get converted into Software Requirements Specification $($SRS$)?$

Estimate the effort and time required to develop a new software application using the COCOMO model. Calculate the persons required per month for $($Organic$,$ semidetached and embedded$)$ projects. Which one you preferred and why?

COCOMO Model Constants:

Software Projects

A

B

C

D

Organic

$2\mathrm{.}4$

$1\mathrm{.}05$

$2\mathrm{.}5$

$0\mathrm{.}38$

Semi$-$Detached

$3\mathrm{.}0$

$1\mathrm{.}12$

$2\mathrm{.}5$

$0\mathrm{.}35$

Embedded

$3\mathrm{.}6$

$1\mathrm{.}20$

$2\mathrm{.}5$

$0\mathrm{.}32$