4.

Boch Toyota is a leading automobile distribution company with branches scattered across the US mainland. The company is desirous

of keeping track of its sale of multiple product lines and products at various locations on a monthly and yearly basis. Sale is tracked in

terms of number of units sold as well as the equivalent sale amount.

4.1 Construct a database conceptual schema that best represents this scenario, and illustrate it in an ERD. Your model may include additional attributes not mentioned in the case providing that you consider them essential. However, no additional entity should be introduced than those implied or mentioned in the case. [16]