QA for Online Banking System

There is an online banking system. In here the process of transferring banking transactions in to online database id occurred. The steps of it are

1. Banking assistants use the system and enter transactions for the system.
2. Authorized person get accessed to the local database for transferring all transactions for temporary online database.
3. Authorized person get accessed to temporary online database and transfer all transaction data in to online database.
4. Users can access details about their account transactions after transferring them in to online database.

We have to use mysql for checking the database connection and transaction data in database. So we used mysql for it.

Also there is a system for user to check their bank accounts. We have to check that system also by using black box testing.