Question

In: Computer Science

UPS relies on an information system. Shipped items are characterized by a unique item number, weight,...

UPS relies on an information system. Shipped items are characterized by a unique item number, weight, dimensions, destination, and delivery date. Shipped items are received into the UPS system at a single retail center. Retail centers are identified by a unique ID and address. Sending Shipped items to their destination can be made through one or more standard UPS transportations. These transportations are identified by a unique schedule-Number, a type (e.g., flight, truck), and a delivery-Route.

Create an Entity Relationship diagram that captures this information about the UPS delivery system. Make sure to present the constraints.

Expert Solution

Solution for creating Entity Relationship Diagram for UPS Delivery System

As per the above given details, the Entities and and attributes of the UPS Delivery System are as follows:

1. Entity: RetailCenter

Attributes: RCenterID, Address

Primary Key: RCenterID

2. Entity: ShippedItems

Attributes: ItemNumber, RCenterID, weight, dimensions, destination, DeliveryDate

Primary Key: ItemNumber

Foreign Key: RCenterID

3. Entity: ItemTransportation

Attributes: ScheduleNumber, ItemNumber, Type, DeliveryRoute

Primary Key: ScheduleNumber

Foreign Key: ItemNumber

ER Diagram

As per the above diagram, a Retail Center may received multiple Shipped Items . Sending items can be made through one or more standard UPS Transportation. Entity RetailsCenter is uniquely identified by RCenterID, Entity ShippedItems by ItemNumber and Entity ItemTransportation is by ScheduleNumber.

venereology answered 9 months ago

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