Bill Barnes and Tom Freeman opened their BSN bicycle shop in 2010. Not counting Jake-a friend who helps out occasionally at the store-Bill and Tom are the only employees. The shop occupies a small commercial space that was once a restaurant. The former kitchen now stores spare parts and provides space for bicycles repairs while the former dining area in the front is now the retail sales area. The "corporate office" is just a desk and file cabinet in the back corner of the retail area. Bill and Tom are more friends and bicycling enthusiasts than businessmen. They've pretty much sunk their life savings into the shop and are anxious that it succeed. In the first year of operations, they worked hard to convert the space into its present condition, which includes an old-timey sign above the door with their name "BSN Bicycles." With all the other work that had to be done the first year, marketing efforts have been limited to chatting with friends, distributing flyers at bicycle races and similar sporting events, and placing a few ads on the Internet. Similarly, the owners haven't paid much attention to accounting tasks. Who has time with all the other things that must be done? But at least two things are now clear to the owners: (1) some of their loyal customers prefer to buy items on credit, and (2) all of their suppliers want to be paid on time. Right now, BSN's "customer credit system" is a box of 3" x 5" cards. Each handwritten card contains customer information on the front and invoice information on the back (Figure 15-19). When a customer pays an invoice, one of the owners simply crosses off the invoice information on # 1234 Dan Denaldson 123 Maple Drive, Invoice # Amount tas v Date New City, Virginia o2345 235.23 home phone: (435) 765-6654 work: ? cell: J056 (232) 122-843 Visa card : a34-445-S432-0976 expires:Rlaor (A) The front of a 3x5 BSN customer card. (B) The back of a 3x5 BSN customer card. FIGURE 15-19 A customer record for the BSN company. CHAPTER 15 / Organizing and Manipulating the Data in Databases 485 the card. The "supplier accounts system" is similar, except that the vendor box of 3" x 5" cards is green, whereas the customer box is gray. Jake is a student at the local university. He is taking an AIS course that includes a segment on Microsoft Access. He is still learning about database theory, but thinks that converting the shop's current "accounting systems" to a DBMS might be a good idea. He thinks, for example, that BSN needs a customer table and a vendor (supplier) table. He also thinks that BSN will need an inventory table to keep track of inventory, but that even more tables might be required. Can you help them? Requirements 1. Identify the resources, events, and agents for BSN's accounting systems. Draw one or more E-R diagrams that illustrate the relationships between these items. 2. Identify the tables that you would need to create a working database for the company's receiv- ables, payables, and inventory. 3. Using Access or another DBMS required by your instructor, create at least three records for each of the tables you identified in part 2. Hints: (1) Use the information on the front of the 3" x 5" card in Figure 15-19 for the customer record structure. (2) The data fields for the Vendors table should include the vendor ID, vendor name and address information, phone number, fax number, and contact person. (3) The data fields for the Inventory table should include item number, item description, units (e.g., dozen, each, etc.), unit cost, unit retail sales price, and quantity on hand. 4. Create relationships for your various tables. 5. Document your work by printing the relationships window. 15-16. BSN Bicycles II (Creating Queries in Access) Business has been growing at BSN Bicycles, and the store owners have been using their Access database to store information about their customers. Now that the store is a little more established, the owners are thinking more about how best to attract more customers to their store. One idea is to see where their current customers live. The owners also want a complete list of their credit customers. Requirements 1. If you have not already done so, create a database for BSN and the customer's table described in Case 15-17. Be sure to create at least 10 customer records for the company, including one with your name. Several of the customers should live in the states of Texas (TX) and Massachusetts (MA), and several customers should have zip code "12345." The customers in TX and MA and the customers with zip code 12345 do not have to be the same. 2. If you have not already done so, create several invoices for your customers. 3. Create a query that selects all customers living in TX or MA. 4. Create a query that selects all customers living in zip code 12345. 5. Create a query that selects all customers living in TX who also have zip code 12345. 6. Create a query that selects all credit customers. (Hint: Use the word "Yes" for the criteria in this query.)