1. Connect ERBuilder to a Firebird database

Firstly, download and install ERBuilder Data Modeler (Download for Free), then run it and follow the steps below to reverse engineer your Firebird database:

To create your connection:

• Click on the New connection button from the start window.

• Or Select File > Manage connections. 

• Then click on the button with the plus sign in the Manage connection form.

• To use Firebird with ERBuilder, you need to fill in the following required fields to do this:

          - Set the name of your connection;
          - Select Firebird from the DBMS list;
          - Set your server to localhost;
          - Set your user Id and password;

• Select the location for the *.firebird file by clicking on the button with the file icon.

• Click the “Apply changes” button to create your connection. Now that your connection is created you can check if it connecting to your database by clicking on the “Test connection” button.

• If everything was set correctly a message saying connected successfully should appear. To finish, click the Ok button to save.