I am working on importing a large amount of DAM Assets from an other CMS. These assets are tagged and there is an established taxonomy. How can i import the established taxonomy in an automated manner. Do i have to create the tagging taxonomy manually or is there any i can import them in an automated manner.
Also an associated question, since the size of the assets is large around 1 TB, what would be best way to migrate such large amount of DAM Assets?
This sounds like you should write an AEM Service to assit you. You can use the Tag Manager API.
To import a large number of DAM Assets - you can also write a custom tool that reads something like an XML file and updates the DAM. See this article - it will give you an idea:
This article posts files to the DAM!