This is my information systems architecture for Citicorp. If you have any questions about it, you can contact me at my e-mail address anniejong.salazar@me.com

1. Our Promise For consumers and institutions to have accurate, up-to-the-minute access to financial information and their cash and credit regardless of their location or means of access. CITIGROUP GLOBAL INFORMATION SYSTEM (CGIS) © 2011 Citigroup

2. Technical Features State-of-the-art Highly scalable Fault-tolerant Multi-tasking Real-time Distributed, geographically-independent Demand-based information sharing CITIGROUP GLOBAL INFORMATION SYSTEM (CGIS) © 2011 Citigroup

3. Data Access Layer Implementation CITIGROUP GLOBAL INFORMATION SYSTEM (CGIS) © 2011 Citigroup

4. Technical Implementation Sun Microsystems Blade Servers running Sun OpenSolariscrontab, shell scripts, perl Oracle RDBMS stored procedures, triggers Java JDBC and core Java Adobe Creative Suite 5 with Master Collection with Dreamweaver front-end: WYSWYG HTML tool Oracle Weblogic Webserver Apple Computer iPhone, iPad Apps using Mac OS-X Snow Leopard with Objective-C CITIGROUP GLOBAL INFORMATION SYSTEM (CGIS) © 2011 Citigroup

5. Compute the penalty on not keeping the minimum balance in a checking account. create or replace package minbal_penalty as function compute_new_bal(intcurrent_bal, intmin_bal, intinterest_rate) return;end; created or replace function compute_new_bal(NUMBER current_bal IN, NUMBER min_bal IN, NUMBER interest_rate IN) return NUMBER is begin if current_bal < min_bal then new_bal := new_bal + current_bal * (interest_rate * .01); else new_bal:= current_bal; end if; return new_bal; end; / CITIGROUP GLOBAL INFORMATION SYSTEM (CGIS) © 2011 Citigroup

6. Oracle PL/SQL Stored Procedures and Functions Assess a bank fee on an account with a balance that does not meet the minimum balance requirement. The current bank balance is $10,000 The minimum balance is $25,000 not to assess a penalty The penalty interest rate is 1.5% per month CITIGROUP GLOBAL INFORMATION SYSTEM (CGIS) © 2011 Citigroup

7. Java JDBC interface Java JDBC code calls Oracle stored procedures, which reside on their database server to maximize throughput, or transmission speed. CHANGING THE DATABASE import java.sql.* public class InterestRate () { /* Connect to database */ class.forName( “sun.jdbc.cdbc.JdbcOdbcDriver”); Database = DriverManager.getConnection(url.userID.password); /* Call stored procedure with JDBC code */ … } CITIGROUP GLOBAL INFORMATION SYSTEM (CGIS) © 2011 Citigroup

8. // COMPUTE YOUR BALANCE AFTER A MINIMUM-BALANCE PENALTY cs= this.con.prepareCall("{call COMPUTE_BALANCE_AFTER_PENALTY(?,?,?,?)}"); cs.setFloat(1, currentBalArg); cs.setFloat(2, minimumBalWithoutPenalty); cs.setFloat(3, penaltyInterestAssesssed); cs.setFloat(4, endingBalanceArg); cs.registerOutParameter(4, Types.NUMERIC); cs.execute(); // Hand data off to presentation layer // This could be: // For web browsers: embedded HTML // For mobile devices; Apple Computer // Objective-C for iPhone, iPad } CITIGROUP GLOBAL INFORMATION SYSTEM (CGIS) © 2011 Citigroup

9. // REVIEW CREDIT CARD INFORMATION public static void viewCreditCardBalance(Connection con) throws SQLException { String query = "select TRANS_DATE, MERCHANT_NAME, PRICE from CC_ACCT_TRAN"; try (Statement stmt = con.createStatement()) { ResultSetrs = stmt.executeQuery(query); while (rs.next()) { Date transactionDate= rs.geDate(”TRANS_DATE"); String merchantName= rs.getInt(”MERCHANT"); float price = rs.getFloat("PRICE"); System.out.println(transactionDate+ ", " + merchantName+ ", " + price); } } catch (SQLException e) { JDBCTutorialUtilities.printSQLException(e); } CITIGROUP GLOBAL INFORMATION SYSTEM (CGIS) © 2011 Citigroup