First you have to create a mySQL database with read and write access.
Now the GUI can be started. On Windows you only have to execute the EDACC.jar file. On a Linux-like operating system you have to navigate with the comand line to the folder and type: java -jar "EDACC.jar".
Then the tables can be created in the database. For this you start edacc. Then you connect to your database which was created in point one with your database-ip, the port, the database-name and the username + password. Now you can crate the tables with the menu. You select "File" -> "Generate tables". If you have write-access on the selected database, the required tables are created.