Why do we need "refresh"?

•The system runs as Server-Client. In other words, the user accesses the system, requests information-documents. The server transmits this information or documents to the requesting user.

•Therefore, the final version of the information or document on the server must be re-ordered by the client each time.

•In the light of these principles, the values in a table displayed on the screen do not show the last data in the system unless requested again by the client.

•To eliminate this problem, there is a "Refresh" button in the upper band of the tables.

•When the user presses this button, the last data registered in the system is ordered from the server and displayed to the user.

How can i refresh? 

•Refresh button is located at the top of the table.