By using the ATM Transaction system, create an Activity Diagram with the conditions that it must include the following concepts or notations: 1. Using Partitions 2. Activities and Actions 3. Draw the action execution sequence using Control Flow and the data exchange sequence using Object Flow 4. Control Buffer or Data Store (choose only one) 5. There is an Exception Handler

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Concurrency Control

The simultaneous occurrence of two or more operations is called concurrence and the situation is called concurrency. In concurrency, the function of one operation can affect the function of the other and put data integrity at risk. Hence, management for the control of concurrency is required. The management or controlling system in the Database Management System (DBMS) that coordinates concurrent access is called the concurrency control system.