In the following description, explain when the term account is used as an application domain concept and when as a solution domain concept:
“Assume you are developing an online system for managing bank accounts for mobile customers. A major design issue is how to provide access to the accounts when the customer cannot establish an online connection. One proposal is that accounts are made available on the mobile computer, even if the server is not up. In this case, the accounts show the amounts from the last connected session.”
The ?rst two occurrences of “account” are application domain concepts while the last two occurrences are solution domain concepts. The phrases “accounts are made available on the mobile computer” and “the accounts show the amounts from the last connected session” denote a solution domain concept that gives users the illusion that they are accessing their bank accounts on their mobile computer. However, the actual bank account is not on the mobile computer.
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