Answer:B. Data Flow Process Model.
Explanation:Use case is a term in Computer software and systems engineering to describe the actions and steps taken between the role which is also known as an actor and the system,it was first introduced by Ivar Jacobson to the world in the year 1992.
Use case is very important and valuable tool in requirement analysis technique and it has been extensively utilized in modern approaches to software engineering.
Typically,Online Commercial Bank is the type of financial institution that has membership requirements. This financial institution providesservices for businesses, organizations and individuals. Services includes offering current, deposit and saving accounts as well as giving out loans to businesses.
The value of foreign goods purchased exceeded the value of goods sold to foreigners during the current year.