Publishing a dataset
When you create or edit any datasets in Rational® Test Automation Server, you can publish your changes to the Git repository. Therefore, when you publish a dataset, other members in the project can use your dataset in their test assets run, if required.
You must have created, edited, or deleted dataset assets in Rational Test Automation Server.
The Changes page lists dataset assets that are modified. You can publish all datasets or a single dataset listed in the Changes page to the Git repository by selecting the appropriate checkboxes.

Rational Test Automation Server processes one publish request at a time. Therefore, when multiple users attempt to publish the same dataset, the request that reaches first from the users is processed. The other users receive an error message, and they are unable to publish.
When you modify the dataset and publish it to the Git repository, the other members who have access to that dataset can view the updated dataset.
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Edit - If you want to make any last-minute updates to the dataset before publishing.
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Discard - To remove the changes that you made to the dataset asset.
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Save As - To save a copy of dataset.
You have published the modified dataset into the Git repository.