Is possible SIT and UAT in same server?

Hi,

Our IT would like using one server (All-in-one) for SIT and UAT purpose, and deploy a SmartForms and Workflow without any changed (e.g. no change on workflow name)

I suppose should be need two server for SIT and UAT, but is it possible separate two different area/site/channel/db for SIT and UAT in one server? So that deploy the SmartForms and Workflow can be without any changed.