Add a field to the `Doctor` subtype in ClaimCenter

As part of an example of adding a field to a contact subtype, extend the Doctor entity in ClaimCenter.

Before you begin

If you have not done so already, follow the instructions for installing ContactManager in Installing ContactManager. Additionally:

You must have integrated ContactManager with ClaimCenter as described in Integrating ContactManager with Guidewire core applications.
If you do not have any users or claims defined, you can load sample data for both applications. See Load sample data for ContactManager.

Start Guidewire Studio™ for ClaimCenter.
At a command prompt, navigate to the ClaimCenter installation folder and enter:
```
gwb studio
```
In the Project window, navigate to configuration > config > Extensions > Entity.
Double-click Doctor.eti to open it in the Entity editor.
Click subtype at the top of the Element hierarchy.
Click the drop-down list for and choose column.
Enter the following values for the new column:

Name Value

name BoardCertified_Ext

type bit

nullok false

desc Is the doctor Board certified in the specialty?

default false
Regenerate the Data Dictionary to ensure that your changes were correct.
At a command prompt, navigate to the ClaimCenter installation folder and enter:
```
gwb genDataDictionary
```

Name	Value
name	`BoardCertified_Ext`
type	`bit`
nullok	`false`
desc	`Is the doctor Board certified in the specialty?`
default	`false`