![]() It can also fetch stock quotes from the stock exchange. ![]() System: This is responsible for notifying the member about the order status and transactions. It can also create and update accounts, perform login and logout, and cancel membership.Īdmin: This can create and update accounts, perform login and logout, cancel membership, and block or unblock members. Member: This actor can search the stock, place an order to buy or sell stocks, create an account, start a membership, add stocks to the wishlist, add buying and selling limits as well as perform transactions in three ways. Now, we’ll define the main actors of our online stock brokerage system. Our system is a "stock brokerage." Actors Let's build the use case diagram of the online stock brokerage system and understand the relationship between its different components.įirst, we’ll define the different elements of our online stock brokerage, followed by the complete use case diagram of the system.
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