1) The purchasing process for a firm is as follows:

The Captains Club is a small merchandise discount store that sells everything from grocery items to automotive parts. The Captains Club is able to secure low prices by buying in bulk and by operating out of a leased warehouse. In addition, only paid members are allowed to shop at a Captains Club location. The following is a description of the yearly member renewal process. For which you will need to prepare a context diagram and a level 0 data flow diagram.

At or near the first day of each month, an accounts receivable clerk queries the membership database to identify whose membership expires during the following month. For example, on January 1^st a query is executed to identify memberships that expire during February. A membership renewal list is printed for use in preparing individual invoices and for documentation. Using the computer and the membership renewal list, an accounts receivable clerk prepares each individual invoice for members. This process automatically updates accounts receivable records. The computer prints two copies of the invoice. The original invoice is sent to the customer and the invoice copy is stored numerically in a filing cabinet. The membership list is also stored in a filing cabinet, but is filed by date.

When payment checks are received they are immediately processed. First, a copy is made and stored alphabetically in customer files. Next, accounts receivables records are updated and customers are given another year of shopping privileges. Finally at the end of the day, checks are endorsed and deposited in the bank.

Prepare the Table of Entities and Activities (10 pts), the Context diagram (15 pts), the Level 0 Logical Data Flow Diagram (25 pts)