Manage Expectations

An Expectation is a verifiable assertion about your data. They make implicit assumptions about your data explicit, and they provide a flexible, declarative language for describing expected behavior. They can help you better understand your data and help you improve data quality.

To learn more about Expectations, see Expectation.

Prerequisites

• You have set up your environment and the GX Agent is running.

• You have a Data Asset.

Create an Expectation

1. In GX Cloud, click Data Assets.

2. In the Data Assets list, click the Data Asset name.

3. Click the Expectations tab.

4. Click New Expectation.

5. Select an Expectation type, enter the column name, and then complete the optional fields.

   If you prefer to work in a code editor, or you want to configure an Expectation from the Expectations Gallery, click the JSON Editor tab and define your Expectation parameters in the code pane.

6. Click Save.

7. Optional. Repeat steps 1 to 4 to add additional Expectations.

8. Optional. Run a Validation. See Run a Validation.

Edit an Expectation

1. In GX Cloud, click Data Assets.

2. In the Data Assets list, click the Data Asset name.

3. Click the Expectations tab.

4. Click Edit Expectations for the Expectation that you want to edit.

5. Edit the Expectation configuration.

   If you prefer to work in a code editor, or you configured an Expectation from the Expectations Gallery, click the JSON Editor tab and edit the Expectation parameters in the code pane.

6. Click Save.

Delete an Expectation

1. In GX Cloud, click Data Assets.

2. In the Data Assets list, click the Data Asset name.

3. Click the Expectations tab.

4. Click Delete Expectation for the Expectation you want to delete.

5. Click Yes, delete Expectation.

Related documentation

• Manage Expectation Suites