Description

This is my first assignment in College. The language using is C language.

Brief description / purpose

A fast food restaurant,OZJ Restaurant needs to efficiently bill customers and keep records of the different types of foods used up.

I have been hired to develop a simple Fast Food Order & Billing System that will enable the restaurant to bill their customers quickly, and at the end of the day produce a Daily Sales Report.

The restaurant sells 4 types of Combo meals consisting of different combinations of food products with prices as shown in the table below:

COMBO	Food Description	Price (RM)
A	2pc Fried Chicken + Coke + French Fries	10.00
B	Chicken/Beer Burger + Coke + French Fries	15.00
C	Double Cheese Burger + Coke + French Fries	18.00
D	Spaghetti with Chicken Chop + Coke + French Fries	24.00

For example, a customer who orders 3 sets of Combo C will be charged 3 x RM 18.00 = RM 54.00. He will also need to pay an extra 10% for SST (Sales / Service Tax). So the total he need to pay is RM 59.40.

After the last customer for the day, a Daily Sales Report will be produced, showing the summary of the sales for that day.

Method of Solution

Structure Chart

Flow Charts

Added features

The feature that i added is display the error when the customer pays the amount smaller than total that need to pay.

The reason for adding this feature is to remind the customer are paying the wrong amount of payment that cannot done the payment.So the customer can confirm the amount needed to pay again.

Program Testing & Outputs

Run senario 1: More than 1 customer - same combo ordered twice by same customer

	Inputs			Expected Results / Outputs
Cust#	Combo ordered	Qty	Payment	Combo Charges	SST (10%)	Total charges	Change to be given
1	C A C	10 2 10	500.00	18 * 10 = 180 10 * 2 = 20 18 * 10 = 180 Total = 380	38.00	418.00	82.00
2	C B	5 5	200.00	18 * 5 = 90 15 * 5 = 75 Total = 165	16.50	181.50	18.50
				Total Combo Sales: A 2 * 10 = 20 B 5 * 15 = 75 C 25 * 18 = 450 D 0 * 24 = 0 ------ ----- 32 545	54.50	599.00

Run Senario 2 : 1 customer only – order all combos, different quantities

	Inputs			Expected Results / Outputs
Cust#	Combo ordered	Qty	Payment	Combo Charges	SST (10%)	Total charges	Change to be given
1	A B C D	1 2 3 4	210.00	10 * 1 = 10 15 * 2 = 30 18 * 3 = 54 24 * 4 = 96 Total = 190	19.00	209.00	1.00
				Total Combo Sales: A 1 * 10 = 10 B 2 * 15 = 30 C 3 * 18 = 54 D 4 * 24 = 96 ------ ----- 10 190	19.00	209.00

Run 3 scenario : 3 Customer - Order total 90 of combo A with different payment

	Inputs			Expected Results / Outputs
Cust#	Combo ordered	Qty	Payment	Combo Charges	SST (10%)	Total charges	Change to be given
1	A	30	600.00	10 * 30 = 300	30.00	330.00	270.00
2	A	30	500.00	10 * 30 = 300	30.00	330.00	170.00
3	A	30	400.00	10 * 30 = 300	30.00	330.00	70.00
				Total Combo Sales: A 90 * 10 = 900 B 0 * 15 = 0 C 0 * 18 = 0 D 0 * 24 = 0 ------ ----- 90 900	90.00	990.00

Constants & variables

#define SST    0.10
#define MENUA 10.00
#define MENUB 15.00
#define MENUC 18.00
#define MENUD 24.00

int quanA, quanB, quanC, quanD; 
int counterA = 0, counterB = 0, counterC = 0, counterD = 0;
int tempA, tempB, tempC, tempD,counterAllcom;
int cusNum = 1, pay;
double comCharge, chargeSST, totalSale, sstTotal;
char orderIn, nextCus;

Constants	Value	Type	Purpose
SST	0.10	double	To define the value of SST ( Service & Sales Tax )
MENUA	10.00	double	To define the price of combo A
MENUB	15.00	double	To define the price of combo B
MENUC	18.00	double	To define the price of combo C
MENUD	24.00	double	To define the price of combo D

Variables	Type	Purpose
quanA	int	To store the quantity of combo A that current customer order.
quanB	int	To store the quantity of combo B that current customer order.
quanC	int	To store the quantity of combo C that current customer order.
quanD	int	To store the quantity of combo D that current customer order.
counterA	int	To store the total quantity of combo A.
counterB	int	To store the total quantity of combo B.
counterC	int	To store the total quantity of combo C.
counterD	int	To store the total quantity of combo D.
counterAllcom	int	To store the total of all combo sales daily.
cusNum	int	To count the number of customer daily.
pay	int	To store the payment of customer.
comCharge	double	To store the total need to pay of current customer.
chargeSST	double	To store the total SST the customer need to pay.
sstTotal	double	To store the total of SST that charged on all combo sales daily.
totalSale	double	To store the total sales of all combo daily.
orderIn	char	To store the current order of combo that customer wants.
nextCus	char	To store the input of casher and check is there still have customer today.