Assessment item 3 Validation phase Value: 25% Due Date: 27-Jan-2019 Return Date: 18-Feb-2019 Length: 2000 words Submission method options: Alternative submission method Task back to top In the final...

iDine System Design
The overall system iDine consists of various subsystems as follows :
· Order Management subsystem
· Inventory Management subsystem
· Sales Analytics subsystem
· Customer Feedback subsystem
· Wait time subsystem
Each of these subsystem are inter-dependent and have UML which depend on one or more subsystem.
We observe the Order Management Subsystem and produce a simplified UML diagram for Order Management in the Restaurant.
The Order Management System consists of several database services for following requirements :
1. User Database
2. Menu Database
3. Realtime Order Database
4. Inventory Database
For the sake of implementation , we have simplified the various models and have 3 major classes and a manager class as follows :
    MenuItem
    Customer (acts as User)
    Order
    - Name : string
- Category : string
- Description : string
- itemID : int
- Price : int
    - orderID : int
- totalPrice : int
- done : boolean
    - itemCount : int
- itemID : int[]
- Quantity : int[]
- isComplete : boolean
    + getName()
+ getCategory()
+ getDescription()
+ getItemID()
+ getPrice()
+ toString()
    + getOrderID()
+ getTotalPrice()
+ isDone()
+ addPrice()
+ markDone()
    + getItemCount()
+ addItem()
+ getItemsID()
+ getQuantity()
+ isComplete()
+ markComplete()
The manager class is iDine. It reads the menu database from a text file “Menu.txt” and populates the MenuItem Class. Methods to add and manage new customers and orders are implemented which used orderID and customerID as their primary key for operations.
MenuItem.java
    
class MenuItem
{
    private String Name;
    private String Category;
    private String Description;
    private int ItemID;
    private int Price;
    public String getName()
    {
        return Name;
    }
    public String getCategory()
    {
        return Category;
    }
    public String getDescription()
    {
        return Description;
    }
    public int getItemID()
    {
        return ItemID;
    }
    public int getPrice()
    {
        return Price;
    }
    public void setName(String name)
    {
        this.Name = name;
    }
    public void setCategory(String cat)
    {
        this.Category = cat;
    }
    public void setDescription(String des)
    {
        this.Description = des;
    }
    public void setItemID(int id)
    {
        this.ItemID = id;
    }
    public void setPrice(int p)
    {
        this.Price = p;
    }
    public String toString()
    {
        String ans = ItemID+"\n"+Name+"\n"+Category+"\n"+Description+"\n"+Price+"\n";
        return ans;
    }
}
Order.java
    class Order
{
    private static int MAX_ITEMS = 20;
    private int itemCount;
    private int[] ItemID = new int[MAX_ITEMS];
    private int[] Quantity = new int[MAX_ITEMS];
    private boolean iComplete;
    public Order()
    {
        itemCount = 0;
        iComplete = false;
    }
    public int getItemCount()
    {
        return itemCount;
    }
    public void addItem(int id,int quantity)
    {
        ItemID[itemCount] = id;
        Quantity[itemCount] = quantity;
        itemCount++;
    }
    public int getItemsID(int x)
    {
        if(x            return ItemID[x];
        else
            return 0;
    }
    public int getQuantity(int x)
    {
        if(x            return Quantity[x];
        else
            return 0;    
    }
    public boolean isComplete()
    {
        return iComplete;
    }
    public void markComplete()
    {
        iComplete = true;
    }
}
Customer.java
    class Customer
{
        private int orderID;
        private int totalPrice;
        private boolean done;
        public Customer(int id)
        {
            orderID = id;
            totalPrice = 0;
            done = false;
        }
        public int getOrderID()
        {
            return orderID;
        }
        public int getTotalPrice()
        {
            return totalPrice;
        }
        public boolean isDone()
        {
            return done;
        }
        public void addPrice(int cost)
        {
            totalPrice+=cost;
        }
        public void markDone()
        {
            done=true;
        }
}
iDine.java
    import java.io.*;
import java.util.*;
import java.lang.*;
class iDine{
    private static final int MAX_CUSTOMERS = 50;
    private static final int MAX_MENU_ITEMS = 100;
    private static int custCount;
    private static Customer[] customers = new Customer[MAX_CUSTOMERS];
    private static int orderCount;
    private static Order[] orders = new Order[MAX_CUSTOMERS];
    public static int itemCount;
    private static MenuItem[] menu = new MenuItem[MAX_MENU_ITEMS];
    
    public static void initSystem()
    {
        custCount=1;
        orderCount=1;
        itemCount=0;
    }
    public static void displayMenu()
    {
        for (int i = 0; i < itemCount; ++i)
        {
            System.out.println(menu[i].toString());
        }
    }
    public static void addItem(int custID)
    {
        int orderID = customers[custID].getOrderID();
        System.out.println("Enter item no. to add : ");
        Scanner sc = new Scanner(System.in);
        int id =...