DEFINITION: VPN Application ABB is a System Software representing a system that delivers enterprise-focused communication services on a shared public network infrastructure and provides customized operating characteristics uniformly and universally across an enterprise.
Source: Gartner
(https://www.gartner.com/en/information-technology/glossary/vpn-virtual-private-network?msclkid=e8536498bbea11eca3a0e1316f87686f)