The TMS helps a company to manage employees, vehicles, and trips. The

system loads data of employees, vehicles, and trips from text files when

the program starts. Then the program displays a menu so that a user can

choose what to do$.$ Such as displaying data, finding data, and saving

data into text files.

A company TMS application initially loads data on employees, vehicles,

and trips from text files.

The format of a driver record contains data like

$1,$John,Smith,$1990-02-10,42$ Victoria St$.$ Hurstville

NSW$,2456,10001,$AVAILABLE

A driver$$s record contains an employee number, first name, last name,

date of birth, address, postcode, license number, and status.

The format of a mechanic record contains data like

$6,$Paris,Hilton,$1990-02-10,1$ Hilton St$.$ Melbourne

Vic,$3000,$A$1234567,$SUPPORT

A mechanical record contains the same $6$ fields as a driver. The last two

fields are qualification number and experience.

The format of a truck record contains data like

AL$08$UK$,50000\mathrm{.}00,5000\mathrm{.}00$

Each truck record contains a registration number, capacity, and weight.

The format of a trip record contains data like

$1,2015-01-12,1,$PKR$768$

$5$

$1,$Sydney,Melbourne

$2,$Melbourne,Hobart

$3,$Hobart,Perth

$4,$Perth,Adelaide

$5,$Adelaide,Wollongong

A trip consists of a trip number, trip date, driver$$s employee number,

truck registration number, and trip leg information.

Each trip may have one or more trip legs. An integer number below a trip

number indicates how many total trip legs. Then it is followed by the

number of rows for the trip legs of the trip. Each trip leg consists of

a leg number, departure city name, and destination city name.

After loading the data into the containers, the TMS displays a menu and

gets the user$$s requirements.

The program can display all employees, trucks and trips according to the

user$$s requirements.

The program can search and display an employee, a truck or a trip

information if it exists.

A user can input trip information and add the new trip to the container.

The program can save data of employees, trucks, and trips from the

containers to text files. develop a Design Class Diagram for the TMS above