it focuses on the user session as if it were running in a single conversational process, completely hiding the complexity of maintaining state across user interactions. Because the 4GL and other tools such as the screen designer work only with the DDS dictionary, which also holds the database schemas, there is considerable reuse of metadata that is rarely achieved with other 4GLs. References Sources The Architecture of OpenVME. Nic Holt. ICL publication 55480001. Undated (probably around 1995) External links VME - Into the Future, Fujitsu UK. Virtual Machine Environment Computer-related introductions in 1974 Multics-like