Question

In the ER diagram for a Point of Sale system, there are entities such as Cashier, Product, Checkout, Transaction, ChecjoutStand, Return, Inventory, etc. Here inventory records each storage location and its capacity. Assume we need to track certain products are bundled and must be sold together. Which of the following is the correct design?

A) Create Bundle entity to link with product
B) Create a recursive relationship for Product
C) Create Bundle as a weak entity of Product
D) Create Bundle as a subtype of Product

Answer 1

Option A is the correct design to track bundled products in a Point of Sale system ER diagram. A Bundle entity should be created to link with the Product entity, allowing products to be represented as both individual items and parts of a bundle.

Step-by-step explanation:

If we need to track products that are bundled and must be sold together in a Point of Sale system, the design should support the representation of a bundle of products as a single purchasable item. The correct approach to model this would be:

• A) Create a Bundle entity to link with the Product entity. This way, we can define a bundle as a collection of products that are sold together. Each Bundle would have its own attributes like BundleID, BundleName, etc., and would be related to the Product entity through a relationship that indicates which products are part of each bundle.

Therefore, option A is the correct design because it allows products to be treated both as individual items when necessary and as parts of a bundle for sales purposes. The Bundle entity acts as an aggregator for products that must be sold together and provides a cleaner way to manage product groupings in the ER diagram.