Hi Iqbal,
XML schema's (XSD's) are a document type within Studio Pro which you only need to define design-time. It 'only' contains the structure of an XML which can be used for either an import or export mapping. So I expect the XSD to define your interface and therefore be environment agnostic, i.e. applicable to all environments (local / private cloud / on-premises / Mendix-cloud / Test / Acceptance / Production).
Good luck!
Johan