HOMEWORK:

For UML class diagram given below, identify the classes and their relationships and multiplicity. Based on your understanding of the class diagram $($below$),$ write a paragraph explaining all classes and their relationships.

Design and draw UML class diagram with attributes, behavior, and class relationships for the following scenario: Model a system for an airline management system that manages flights and pilots$-$

a$.$ An airline operates flights.

b$.$ Each airline has an ID$.$

c$.$ Each flight has an ID$,$ a departure airport, and an arrival airport.

d$.$ An airport as a unique identifier.

e$.$ Each flight has a pilot and a co$-$pilot, and it uses an aircraft of a certain type.

f$.$ A flight also has a departure time and an arrival time.

g$.$ An airline owns a set of aircrafts of different types.

h$.$ An aircraft can be in a working state, or it can be under repair.

i$.$ In a moment an aircraft can, be landed or airborne.

j$.$ A company has a set of pilots: each pilot has an experience level: $1$ is minimum, $3$ is maximum.

k$.$ A type of aircraft may need several pilots, with a different role $($e$.$g$.$: captain, co$-$pilot, navigator$).$