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Registry

Definitions:

  A service that allows developers to easily store images as they are created, tag and catalog images for identification and version control to aid in discovery and reuse, and find and download images that others have created.
Sources:
NIST SP 800-190

  An authoritative, centrally-controlled store of information. Web services use registries to advertise their existence and to describe their interfaces and other attributes. Prospective clients query registries to locate required services and to discover their attributes.
Sources:
NIST SP 800-95 from Open Grid Services Architecture Glossary of Terms