1) Should DEV TEST and PROD be projects or sites? My understanding is that sites cannot communicate with each other so we won't be able to move a workbook from DEV to TEST if they are set up as 2 different sites. Am i right?
P.S: We have just 1 physical machine, so won't be having 3 different server environment as such. We just need to configure them either as site or project and have a functionality that allows movement of dashboards from dev to test and test to prod.