Sales Order/Cash Receipt Multiplicity Assignment

For each of the following scenarios, a different payment agreement is described. Using what you know about multiplicities, determine them in each relationship (the minimum next to Sales Order can be skipped, however it is dependent on whether or not processes other than sales are recorded in the database).

Scenario 1:

Company A sells bookcases designed to specification. Company A allows its customers to pay in monthly installments, as occasionally the bookcases can be quite expensive. Company A generally requires its customers to pay an initial $50 upon agreement of sale, but will allow its customers who have been particularly loyal to skip the initial payment. Company A also allows their loyal customers to pay for multiple bookcase orders in the same payment, although this is certainly not required.

Scenario 2:

Company B is a travel agency. Company B requires payment upon the first consultation, and then accepts one more payment when the travel agent books the travel for the customer (usually 2-3 weeks later). Each customer payment is for only one sale.

Scenario 3:

Company C sells used (but not rare) books. Customers always pay up-front, and for one sale at a time. Installments are not accepted.

Scenario 4:

Company D sells electronics. While a down payment is allowed, it is not required. Customers can pay in a maximum of 4 weekly installments. Customers do not pay for more than one sale at a time.

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