I have spent over 12 months working in the Data Virtualisation space. One thing that I have found hard is explaining what it actually is! So have a look at TIBCO® Data Virtualization | TIBCO Software for details on TIBCO's offering, where TIBCO Data Virtualization 2-Minute Explainer | TIBCO Software is a good introduction. The article at also gives some context to using Data Virtualisation. I have also found the following useful: