I worked 5y at an Enterprise Search vendor. For us there, Enterprise application was: * to be used "within" a large org or corporations (vs web facing apps) *

I worked 5y at an Enterprise Search vendor. For us there, Enterprise application was: * to be used "within" a large org or corporations (vs web facing apps) * which deployment/usage is through the overall organization (not just departmental (=specialized app) this is why often the 2 types of license sold were "corporate or Enterprise license" with 1 important parameter: the number of employees (per seats) of the corp * Most of the time, installed within the firewall on the corps own servers (vs cloud) * if modern architecture the app to be deployed globally should have "connectors"/connectivity so that it can communicate with other pre existing systems * very often deployed by system integrators or at 3 to 4 x the price by the engineers of the Enterprise App vendor