| Subject | English | Japanese |
| comp. | n use case | ユース・ケース |
| comp., MS | use case | ユース ケース (A collection of scenarios which make up a behaviorally related sequence of interactions that a user performs in a dialog with a system) |
| comp. | n use case | ユースケース |
| comp., MS | use case diagram | ユース ケース図 (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)) |