QUESTION $1$

Requirements Specification $($this is a fictional scenario$)$

Jim McKay Chevrolet Car Dealer contacted you to improve their inventory database. To proof your knowledge your company must create an initial model of the database. For simplicity, they asked to have a single$-$entity database. Below is the dialog between a senior DESIGNER and a CUSTOMER representative.

Designer: May you show me some sample data that you want to be stored in the database?

Customer: Yes, we want to keep information for our inventory. Some sample cars in our inventory are:

$2020$ Chevrolet Suburban LT; MPG: $14$ City $/21$ Hwy; VIN #: $1$GNSKHKC$8$LR$212807$; PRICE: $$64,148$;

$2020$ Chevrolet Silverado $1500$ WT; MPG: $15$ City $/19$ Hwy; VIN #: $3$GCNWAEF$8$LG$252540$; PRICE: $$28,185\mathrm{.}5$;

$2020$ Chevrolet Bolt EV Premier; MPG: $127$ City $/108$ Hwy; VIN #: $1$G$1$FZ$6$S$00$L$4121472$; PRICE: $$35,605$;

$2019$ Chevrolet Malibu LT $1$LT; VIN #: $1$G$1$ZD$5$ST$8$KF$112375$; Price: $$16,478$;

Designer: Are you selling only Chevrolet cars?

Customer: Yes

Designer: Based on what characteristics do you want to search or make other operations?

Customer: Year, model, trim, miles per gallon in the city or highway, VIN and price.

Designer: What properties are always provided for a car?

Customer: Year, model and VIN. Each car has a unique VIN.

Designer: I need to specify the maximum number of characters $($the length$)$ for various names. Looking at your data samples I identified the following: model $-$ max $13$ characters, trim $-$ max $12$ characters. Can you have larger names?