--- /dev/null
+
+.. http://creativecommons.org/licenses/by/4.0
+
+.. _glossary:
+
+Glossary
+========
+
+.. _glossary-asdc:
+
+ASDC
+----
+
+The ECOMP resource catalog. We assume the existince and usage of ASDC, though for near term testing purposes, we use a mock version of the catalog.
+We assume all DCAE artifacts: components like collectors, CDAP applications, data formats (see below), etc, are onboarded and searchable in the catalog.
+Further, we assume that every catalog artifact has a *UUID*, a globally unique identifier that identifies that artifact.
+
+.. _glossary-component:
+
+Component
+---------
+
+Refers to a DCAE service component which is a single micro-service that is written to be run by the DCAE platform and to be composeable to form a DCAE service.
+
+.. _glossary-data-format:
+
+Data format
+-----------
+
+Artifact that describes a data structure and schema.
+
+.. _glossary-onboarding-catalog:
+
+Onboarding catalog
+------------------
+
+The onboarding catalog is the intermediary store for project details, component specifications and data formats. This is to be used by component developers through the `dcae-cli` to browse and to launch existing components and push their own component artifacts in preparation to move their component to the ASDC resource catalog.