Glossary of terms

Glossary of terms
Alarm
A notification that is triggered when a metric or expression crosses a threshold.
Metric
A time-ordered set of data points that are published to CloudWatch.
Namespace
A container for CloudWatch metrics.
Dimension
A name/value pair that is used to identify a metric.
Statistics
A set of data points that are used to calculate a single value.
Period
The length of time associated with a particular statistic.
Unit
The unit of measure associated with a particular statistic.
Logs
A service that allows you to store and monitor log data.
Log Groups
A container for log streams.
Log Streams
A sequence of log events that share the same source.
Events
A service that allows you to respond to state changes in your AWS resources.
Rules
A set of criteria used to trigger an event.
Targets
The resources that are invoked when an event is triggered.
Dashboards
A graphical representation of your CloudWatch metrics and alarms.
Annotations
A way to add contextual information to your dashboards.
Insights
A service that allows you to analyze log data in near real-time.
Queries
A set of criteria used to filter log data.
Monitors
A service that allows you to monitor the performance of your applications.
Synthetics
A service that allows you to monitor the availability of your applications.
Canaries
A type of synthetic monitor that allows you to test the performance of your applications.
Trace
A service that allows you to trace the performance of your applications.
X-Ray
A service that allows you to analyze and debug distributed applications.
Agent
A software agent that collects and sends data to CloudWatch.
API
A set of programming interfaces that allow you to access CloudWatch data.
CLI
A command line interface that allows you to access CloudWatch data.