Question
Draw a Sequence Diagram mapping the chronological(synchronous and asynchronous) object interactions, including conditional exception frames, for an ATM management system.
Answer :
Word Count : 613
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Skip in 10
A Sequence Diagram in an ATM management system represents the chronological flow of messages exchanged between different objects involved in completing an ATM transaction. It is a UML interaction diagram that focuses on the order of communication among objects over time. It includes synchronous calls, asynchronous messages, object lifelines, and conditional exception handling using combined fragments such as “alt” and “opt” frames. The main objects involved in an ATM system are Customer, ATM Interface, ATM Controller, Card Reader, Bank Server, Account Database, Cash Dispenser, and Receipt Printer. The interaction begins when the customer inserts an ATM card into the card reader. The Card Reader sends a synchronous request to the ATM Controller to read and validate the card information. The ATM Controller then communicates with the Bank Server to authenticate the card details. A simplified sequence flow can be represented as follows: ``` Customer ATM Card Reader Controller Bank Server Database | | | | | | | Insert Card | | | | | |------------>| | | | | | | Read Card | | | | | |------------->| | | | | | | Validate Card | | | | | |--------------->| | | | | | | Authenticate | | | | | |--------------->| |
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