Versioning is the storage and management of particular variations of an earlier or original type of information, for security, analytical, and control purposes.

Virtualisation is a framework or methodology of partitioning one physical device or resource into multiple execution environments, thereby enabling each the appearance and capabilities of running independently. Devices or resources include servers, storage devices, networks and operating systems.

A Virtual Private Network (VPN) offers a personalized enterprise IP network service among several sites, belonging to either a single organization or collaborating organisations, over an IP network such as the Internet. VPN connections can include remote access and routed connections to private networks over a public or shared network.

The Voice Extensible Markup Language (VXML) is a markup language applied in user interfaces that use automatic speech recognition (ASR) and text-to-speech synthesis (TTS).