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| Russian | English |
| вариант использования | use case (A collection of scenarios which make up a behaviorally related sequence of interactions that a user performs in a dialog with a system) |
| схема вариантов использования | use case diagram (A diagram that shows the external actors who will interact with your system and how they will use it. The diagram consists of a system boundary, actors, use cases, and use case relationships (communicates, uses, and extends)) |