Glossary - meridor/perspective-backend GitHub Wiki

Instance - virtual machine (can be also called container, droplet and so on).
Project - a named set of instances. Corresponds to the entire cloud or one of its regions (if supported).
Image - a named copy of an instance state (can be also called snapshot). Some clouds like Openstack make difference between images and snapshots, but we use the same term for both.
Volume - an external disk attached to a running instance.
Flavor - a named combination of instance parameters such as number of CPUs, RAM, hard disk size and so one (can be also called instance type or droplet size).
Network - a named set of IP addresses. An instance can obtain one or more addresses from this set.
Keypair - initially just an SSH keypair, but in general - any credential used to remotely access to instance.
Console - a tool to look at instance real screen (like real monitor attached to server video slot).