Following use case diagram represents a Sales Order System. However some parts of the diagram are missing. Missing parts are numbered as 1, 2 and 3. Which of the following option gives the names of these relationships correctly. Enter Customer 2 Data Order Product Place Order 2 Arrange Payment 1 1 1 3 Local National International Insufficient Order Order Order Product
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- Complete Each Entity's relationship. ex) A CUSTOMER makes many ORDERAnd if ther is any errors or unnecessary part please fix it. It could be a position of primary key or attributes. Please set the resonable relationship with this image.Create a Crow’s Foot ERD to include the following business rules for the “ProdCo company” 1. Each sales representative writes many invoices. 2. Each invoice is written by one sales representative. 3. Each sales representative is assigned to one department. 4. Each department has many sales representatives. 5. Each customer can generate many invoices. 6. Each invoice is generated by one customer.Use ER Assistant to draw your diagram. Draw a generalization hierarchy containing Employee, Administrator, and Faculty entities. The Employee entity is the supertype, and the Administrator and Faculty entities are the subtypes. The Employee entity has attributes as follows: EmpNo (primary key), EmpName, and EmpAddress. The Administrator entity has attributes as follows: AdmTitle, AdmContractLength The Faculty entity has attributes as follows: FacTenure, FacRank The generalization hierarchy should be disjoint but not complete.
- Problem⦁ Identify the entity⦁ Identify the entity’s attribute⦁ Identify the primary and foreign Keys⦁ Identify relationship between Entities⦁ Identify the Cardinality constraints Question 2⦁ a professor teaches zero, one or many classes and a class is taught by one professor⦁ a course may generate zero, one or many classes and a class comes from one course⦁ a class is held in one room but a room has many classesCreate a Crow's Foot ERD to include the following business rules for the ProdCo company:a. Each sales representative writes many invoices.b. invoice is written by one sales representative.c. Each sales representative is assigned to one department.d. Each department has many sales representative.e. Each customer can generate many invoicesd. Each invoice is generated by one customerUse the following business rules to create a Crow’s Foot Entity Relationship Diagram. Write all appropriate connectivities and cardinalities in the ERD. Add other linking entities as needed. • A department employs many employees, but each employee is employed by one department. • Some employees, known as “rovers,” are not assigned to any department. • A division operates many departments, but each department is operated by one division. • An employee may be assigned many projects, and a project may have many employees assigned to it. • A project must have at least one employee assigned to it. • One of the employees manages each department, and each department is managed by only one employee. • One of the employees runs each division, and each division is run by only one employee.
- In an ERD, entities do not have columns. Instead which of the following is used to describe the entity's characteristics? Group of answer choices attributes degrees instances relationshipsIn the ER diagram for a Point of Sale system, there are entities such as Cashier, Product,Checkout, Transaction, CheckoutStand, Return, Inventory, etc. Here inventory records each storagelocation and its capacity. Sometimes, a customer may need to come back to pickup their items afterchecking out while most of the time they leave the store with their purchases. Which of the following is thebetter design for manage transactions?A) Add an attriute to transaction to indicate whether goods have been pickuped or notB) Create two subtyeps of TransactionC) Create a weak entity Pickup to link with TransactionD) Add a relationship between Transaction and ProductI need an ER diagram for the following information For Hotel: HotelID (unique) and ANoOfRooms (number of rooms in the hotel) For Hotel: HotelID (unique) and ANoOfFloors (number of floors in the hotel) For each Room: RNO (partially unique, unique in the hotel) and ANoOfBeds (number of beds in the room) For each customer: CID (unique), CName (unique), For each manager: MID (unique), MFullName (composed of MFName and MLName), MBonus (not every manager has a bonus), MSalary, multiple MPhones For each employee: EID (unique), EName Each hotel has one or more rooms Each room is located on exactly one floor Each room is cleaned by one or two employees Each employee cleans 1-3 floors Each employee cleans 6-15 rooms Each customer has one or many rooms Each customer has booked one or mamy rooms Each room is booked by a customer or no one Each floor has one or many rooms Each manager resides in exactly one room Each manager resides on exactly one floor Each hotel either has one manager residing…
- Entity Relationship Diagram of the business, as shown in the case. Completely and correctly specify all Entities, Relationships and Attributes Order: has one or many items; half by member half by anonymous member (no member number)Has: order number, each order item has total cost (with and without gst), number of store, cashier who took the order, member number (if provided), date on which the order was places, and, if the order is not picked up in-person, the date on which the order is shipped. Order-Item (one of the 1600 products):to identify: useorder number as well as a small “item sequence number” (which is unique within each order). product number, quantity ordered and the actial "unit price paid" If a valid member number is on the order, the system should use the product’s special “member price”, otherwise the product’s “regular price” is used. The average order includes 11 distinct order-items. Member (places 5 orders per month on avg):last name, given names, email…What is NOT another name for an associative entity? Linking table Bridge entity Composite entity Strong entityJUST DRAW ME THE Entity-Relationship Diagram (ERD) Before 7:20 PM pleaseHere is all the entities, attributes and their relationshipsEntities: Customer Item Purchase Payment Coffee Card Attributes for Each Entity: Customer: CustomerID (Primary Key) FirstName LastName Email Phone Address Item: ItemID (Primary Key) ItemType (e.g., Beverage, Bakery, Coffee Card) ItemName Description Price Purchase: PurchaseID (Primary Key) CustomerID (Foreign Key) PurchaseDate TotalAmount Payment: PaymentID (Primary Key) PurchaseID (Foreign Key) PaymentMethod (e.g., Cash, Credit Card) PaymentAmount Coffee Card: CardID (Primary Key) CustomerID (Foreign Key) Balance Relationships: Customer-Item (Many-to-Many): A customer can purchase multiple items. An item can be purchased by multiple customers. Customer-Purchase (One-to-Many): A customer can have multiple purchases. Each purchase is associated with one customer. Purchase-Item (Many-to-Many): Each purchase can include multiple items. An…