V

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• Value — Benefit to a customer and their users delivered by a service
• Value proposition — A promise of Value to be delivered and a belief from the customer/client of value that will be experienced. A value proposition can apply to an entire organisation, or parts thereof, or client accounts, or Products or Services.
• Virtual machine image — A representation of the file system of a virtual machine, usually including a pre-configured operating system (OS) environment and a set of pre-installed applications.
• Virtual organisation — A group of people (e.g. scientists, researchers) with common interests and requirements, who need to work collaboratively and/or share resources (e.g. data, software, expertise, CPU, storage space) regardless of geographical location. They join a VO in order to access resources to meet these needs, after agreeing to a set of rules and Policies that govern their access and security rights (to users, resources and data). The VOs of EGI are listed in the 'Operations Portal': https://operations-port
• Virtual organisation manager — An individual responsible for the membership registry of a VO including its accuracy and integrity.
• Virtual Research Community — A group of large-scale research collaborations, or a number of separate VOs grouped according to research domain or computational technique. The group shares information and experience in achieving their goals through the usage of an e-Infrastructure (e.g., best practices, applications, training material).
• Virtual Research Environment — Domain specific environments or combination of environments that provide the researcher with easy access to the services deployed to enable their data analysis activities, whether through command line interfaces or higher-level generic tools that simplify the data analysis process.
• Virtual team — A group of individuals spread across different organisations that are brought together for typically small scale projects, which cut across existing organisational structures
• Vulnerability Assessment — Vulnerability Assessment is the proactive examination of software in order to find vulnerabilities that may exist. While this work is no longer being carried out by EGI members work is continuing.