The Video KB describes about the three different methods to create a topic.

1. From database - we can connect manually to the database and select the source table, so that DIH will create a staging table in the staging repository. DIH will append two columns in the staging table which tracks the publication id and publication date.
2. Manually - we can create staging tables manually and DIH will create those tables and add two columns for publication id and publication date.
3. From workflow definiton file - we need to import the workflow from PowerCenter repository manager and upload the workflow into the DIH console. DIH will parse the target table and create a staging table in the staging repository. In this case we need to manually add two columns - for publication instance id and publication date.