Comparing Data Models

You can compare two data models or an online database with a data model and view the differences between them. The differences between the data models are highlighted in different colors.

This task explains how to compare the data models:

  1. From the menu bar, select File > Open Model to open a data model file.

  2. Repeat Step 1 to open a second data model file to be compared.

    Note: To compare a data model file with an active database, connect to a database through the Connection tab.

  3. From the menu bar, select Model > Differences.

    The Data Model Differences window appears.
     

The Data Model 1 list displays the active data model.

  1. From the Data Model 2 list, select the data model/database to be compared (with respect to Data Model 1).

  2. In the Options to Compare list, select the required data model element or elements to be compared, by clicking the relevant options.

  3. In the Difference Report File field, enter the name of the file to store the data model differences.

  4. Click Browse to save the file to a location of your choice.

  5. Click OK.

    The differences between the data models are displayed in different colors in the Browser View.

Setting Color Scheme

When you compare data models, the differences between the elements of the data models are displayed in different colors.

This task explains how to change the default color scheme:

  1. From the menu bar, select Model > Legend.

    The Legend window appears.

  2. You can set the default color conventions in the Legend window.

    This table describes the color conventions:

    Color 

    Difference

    Red

    Modeling item not found.

    Magenta

    Parentage is different.

    Blue

    Meta Model Properties are different

    Green

    No difference.

  3. To change the default color settings in the Legend window, click the color palette.

    The Choose Color Scheme window appears.

  4. Select the required color, and then click OK.