SAP S/4 Hana Landscape

Hi Experts,

I m little confused.

We have ECC 6.0 EHP6 ready to migrate in S/4 Hana 1709.

In ECC we have 3 server

Dev, Quality, PRD

For migration we have to make copy of PRD and will migrate that copy PRD. If all things are Ok then should we have to make DEV and Quality from copy PRD which we have migrated to Hana?

Unable to find proper help.

Thanks

Chandrajit