#Sequence diagram example for atm pro

This automated teller machine (ATM) UML use case diagram example was created using the ConceptDraw PRO diagramming and vector drawing software extended with the ATM UML Diagrams solution from the Software Development area of ConceptDraw Solution Park. It doesn’t matter how the system is actually implemented, as long as it looks like this to the user.' The lines between the actors and the use cases represent the interactions. The ellipses represent the use cases, which are descriptions of valuable work that can be performed with the system. (These can even be other computer systems, as is the case with “ATM.”) The box represents the boundary of your system.

#Sequence diagram example for atm free

Use case diagrams are intentionally simple to prevent you from getting bogged down in system implementation details prematurely.Įach stick person represents an “actor,” which is typically a human or some other kind of free agent. You can think of a scenario as a question that starts with: “What does the system do if.?” For example, “What does the auto-teller do if a customer has just deposited a check within the last 24 hours, and there’s not enough in the account without the check having cleared to provide a desired withdrawal?” Each of these “situations” is referred to as a scenario, and a use case can be considered a collection of scenarios. 'If you are designing an auto-teller, for example, the use case for a particular aspect of the functionality of the system is able to describe what the auto-teller does in every possible situation. This example of bank ATM UML activity diagram was created on the base of UML use case diagram of automated teller machine from the course 'Thinking in Java, 2nd edition, Revision 9' by Bruce Eckel published on the website of the Computer Science and Electrical Engineering Department of the University of Maryland, Baltimore (UMBC). This example of bank ATM sequence diagram was created using the ConceptDraw PRO diagramming and vector drawing software extended with the ATM UML Diagrams solution from the Software Development area of ConceptDraw Solution Park.

In the example, the Bank timeline has an X simply as an example (presumably the Bank does continue to exist).' An X on a timeline indicates that the component ceases to exist in some sense (unsure precisely how this is meant also). The narrow rectangles apparently show when a component is active (unsure precisely what 'active' means). The timelines are dotted rather than solid, and the name of the component is inside a box at the head of each timeline. Presumably the same semantic issues arise, but possibly not since UML semantics are not well-defined. 'A UML sequence diagram or SD is similar to an MSC but written with a different notation. This example of automated teller machine (ATM) UML sequence diagram was created on the base of figure 5 'Sequence diagram' on the webpage 'Message Sequence Charts and their Ilk' from the website of the University of California Irvine (UCI) Donald Bren School of Information and Computer Sciences.