[[ecs-glossary]]
=== Glossary of {ecs} Terms

[[ecs-glossary-ecs]]
ECS::
*Elastic Common Schema*. The Elastic Common Schema (ECS) is a document schema
for Elasticsearch, for use cases such as logging and metrics.
ECS defines a common set of fields, their datatype,
and gives guidance on their correct usage.
ECS is used to improve uniformity of event data coming from different sources.