The Archon Bank of Cardassia (ABC) would like to develop an information system for handling accounts. The following is a summary of interviews with employees and customers of the bank. The bank has many different types of accounts. The basic type of account is called a savings account. Savings account customers do not get a monthly account statement. Instead, they have a passbook, which gets updated when they come in. Each passbook page has enough room to have up to ten transactions and, everytime the book is updated, the next transaction is printed immediately after the last one in the book. The bank already has the pass- book printers and printing software in place (we bought it from a third-party vendor). Customers are able to open and close accounts. They can withdraw or deposit money, or get the current balance. The current balance is displayed on an account update screen, which will be part of the teller's information system. This screen displays the account number, the customer's name, and the current balance of the account. An account is associated with a specific branch. Although we now support multibranch banking, every account is still assumed to have a "home" branch. A checking account is just like a savings account, except customers can also write checks on it. We sell checks for $30 for a box of 100. Once a customer uses 75 checks, or check #90 comes in, we send them a notice in the mail asking them if they want to purchase more checks. Account statements are sent out every month. Checking accounts do not have passbooks, and savings accounts do not have account statements. We charge $1,200 a year for private banking accounts (PBAs). PBAs are just like checking accounts. PBAs entitle customers to investment counselling services, as well as to other services unavailable to other clients. A PBA account can be held by only one customer, although a customer may have more than one PBA account. This is exactly like savings accounts. Checking accounts, however, can be joint. This means a checking account can be accessed by one or more customers (perhaps a husband and a wife). A current account is for our corporate customers. It works like a checking account, with a few extra features. For example, a quarterly account statement (which is exactly the same as a monthly account statement, except it is done for an entire quarter) is sent out, in addition to the regular monthly statements. The quarterly statement is sent in the same envelope as the statement for that month. Corporate customers also get to choose the number of checks they are sent (100, 250, 500, or 1,000) at a time. Current accounts are not joint and they cannot be accessed through an ATM. Furthermore, because of the different service needs of our corporate customers, we deal with them at special branches called "corporate branches." Corporate branches serve only corporate customers. They do not serve our retail (normal) customers. Corporate customers can be served at "retail branches," although they rarely do because the tellers in a retail branch do not have the necessary background to meet their special needs. More than one account can be accessible from a bank card. We currently give cards out to any customer who wants them. Customers access their accounts using two different methods: at an automated teller machine (ATM) or at a bank branch. ATMs enable customers to deposit to, withdraw from, and get balances from their accounts. They can also pay bills (this is basically a withdrawal) and transfer money between accounts (this is basically withdrawing from one account and depositing into another). Everything that can be done at a bank machine can also be done by a real live teller in a branch. The teller will have an information system that provides the screens to perform all of these functions. Additionally, tellers can also help customers to open and close their accounts, as well as print out account statements for the customer. The account statements are just like the monthly/quarterly statements, except they can be for any time period. For example, a customer could request a statement from the 15th of August to the 23rd of September, and we should be able to print that out on the spot. Monthly and quarterly account statements are normally printed out on the first Saturday of the following month. This is done by an automated batch job. Because we have started to put ATMs into variety stores and restaurants (in the past, we only had ATMs in branches), we now consider every ATM, including those in our "brick and mortar" branches, to be a branch as well. This means ATMs have branch IDs and addresses, just like a normal branch does. To manage the bank effectively, we split it up into collections of branches called "areas." An area is a group of between 10 and 30 branches. A branch is part of only one area, and all branches are in an area. Each area has a unique name and is managed by an "area manager." Area managers receive weekly transaction summary reports every Monday before 9 in the morning. This report summarizes the number and total amounts of all withdrawals, deposits, and bill payments performed at each branch (including ATMs) for the previous week. For brick and mortar branches, there is also an indication of how many accounts in total were at that branch at the beginning of the week, how many accounts were opened during the week, how many accounts were closed during the week, and how many accounts there are now. Finally, all these figures are summarized and outputted for the entire area.

Develop a use case diagram for the bank case study described in Chapter 1.

2. Identify the three most important use cases in your diagram from Question 1 and develop essential use cases for each. 3. Justify why the three use cases that you chose in Question 2 are the most important ones.