What is activity diagram and why is it required draw the activity diagram for an ATM transaction?
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What is activity diagram and why is it required draw the activity diagram for an ATM transaction?
Activity Diagram is an important behavioral diagram in the UML diagram to describe the dynamic aspects of the system. Activity Diagrams are often used in business process modeling for instance, to illustrate how ATM withdrawal actually works.
What are the symbols for the activity diagram?
Activity Diagram Symbols
| Name | Use |
|---|---|
| Control Flow / Edge | Used to represent the flow of control from one action to the other |
| Object Flow / Control Edge | Used to represent the path of objects moving through the activity |
| Activity Final Node | Used to mark the end of all control flows within the activity |
What is class diagram in ATM system?
In a class diagram, each class acts as a template, or blueprint, for a type of object that can exist in the system. Each class has attributes and methods. Attributes are the characteristics of the class and represent data elements that will need to be stored for the class.
Which algorithm is used in ATM?
To get a low power consuming and ultra-high speed encryption at the ATM machine, an optimized and wavelet based AES algorithm is proposed. In this system biometric and cryptography techniques are used together for personal identity authentication to improve the security level.
How does ATM algorithm work?
An ATM, a.k.a. Cash Withdrawal Machine, uses a computer program to interact with the customer and count the number of banknotes to dispense based on the customer’s requested amount.
How is cryptography used in ATM cards?
Key Takeaways Credit card encryption is a security measure used to reduce the likelihood of credit or debit card information being stolen. It makes it impossible to access the credit card information without the corresponding encryption key that lets the merchant and financial institution conduct their transactions.
What is fork in activity diagram?
A Fork notation in a UML Activity Diagram is a control node that splits a flow into multiple concurrent flows. This will have one incoming edge and multiple outgoing edges. A join node is a control node that synchronizes multiple flows. This will have multiple incoming edges and one outgoing edge.
What is state in activity diagram?
Action or Activity State – An activity represents execution of an action on objects or by objects. We represent an activity using a rectangle with rounded corners. Basically any action or event that takes place is represented using an activity.
What is activity model?
Activity modeling is about creating a diagram that represents the dynamic aspects of a system by showing the flow of control from one action to another, and is one of the main UML modeling techniques.
How do ATM machines read money?
The cash-dispensing mechanism has an electric eye that counts each bill as it exits the dispenser. The bill count and all of the information pertaining to a particular transaction is recorded in a journal.
What is ATM key?
In the ATM world, keys – or sets of binary numbers – are used to protect PIN secrecy. To reduce the risk of fraud, several EFT networks require deployers to use a unique key for each ATM; no two machines in a network should have the same key.
What is Event state and transition?
The event state diagram is shown below. Each event is assigned one of these states as it passes through the Event Gateway. Each state transition corresponds to an updated event received from the ObjectServer. The event states are shown with an associated color as follows: Red indicates an active problem state.
What is branch in activity diagram?
An activity diagram is a variant of a state diagram in which most, if not all, the states are activity states. Thus, much of the terminology follows that of state diagrams. Conditional behavior is delineated by branches and merges. A branch has a single incoming transition and several guarded outgoing transitions.
