1. Log into the big data platform and enters the personal center.
2. In the menu bar on the left side of the personal center, click "Submit Data" in the "My Data" to compose metadata.
3. Fill in the data in this order: Overview -> Data Resource Provider -> Reference -> Keywords -> Thumbnail -> Data Files -> Attachments
4. Click on the "Submit" button to publish the data.
5. Click on the "Review" menu to find the metadata you submitted, and its status shows "Submitted". You can also view metadata that has been reviewed and is being reviewed.