Question: 1. Get Quote Use Case Brief Description Trading Customers get current and historical information about the trading price of securities. 2. Flow of Events 2.1

1. Get Quote Use Case Brief Description Trading Customers get current

1. Get Quote Use Case Brief Description Trading Customers get current and historical information about the trading price of securities. 2. Flow of Events 2.1 Basic Flow 1. Customer logs on 2. Customer selects "Get Quote function. 3. Customer selects stock trading symbol. 4. Get desired quote from Quote System. 5. Display quote. 6. Customer logs oft. 2.2 Alternative Flows Al Customer Gets Other Quotes A2 Unidentified Trading Customer A3 Quote System Unavailable A4 Quit AS Unknown Trading Symbol 3. Scenarios 3.1 Success Scenarios Customer gets a quote: Basic Flow Customer gets additional quotes: Basic Flow, Customer Gets Other Quotes 3.2 Failure Scenarios Invalid login: Basic Flow, Unidentified Trading Customer Quote system host link down: Basic Flow, Quote System Unavailable Trading customer enters an unknown trading symbol: Basic Flow, Unknown Trading Symbol Trading customer quits before completion: Basic Flow, Quit

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