Add monitor terms to glossary (#21173)

* Add monitor terms to glossary

* Apply suggestions from code review

Co-authored-by: Kaylyn <[email protected]>

* Update archetypes/glossary.md

* Update content/en/glossary/terms/conditional_variables.md

---------

Co-authored-by: Kaylyn <[email protected]>

Author: estherk15

archetypes/glossary.md

@@ -2,6 +2,10 @@
 # Glossary Term
 title: {{ replace .Name "-" " " | title }}
 
+# (optional) Core products related to this term, allows top level filtering in UI.
+core_product:
+    - core_product
+
 # (optional) Array of synonyms
 synonyms:
     - synonym1
@@ -12,4 +16,4 @@ related_terms:
     - related_term1
     - related_term2
 ---
-Add glossary term definition and markdown here.
+Add glossary term definition and markdown here. 

content/en/glossary/terms/alerting_type.md

@@ -0,0 +1,11 @@
+---
+title: alerting type
+core_product:
+    - alerts
+synonyms:
+    - alert grouping
+related_terms:
+    - simple alert
+    - multi alert
+---
+Alerts are grouped automatically based on your selection of the `group by` aggregation step when defining your metric. Any added aggregations result in a "multi alert" type, and no aggregation is a "simple alert" type. For more information, <a href="/monitors/configuration/?tab=thresholdalert#alert-grouping">see the documentation</a>.

content/en/glossary/terms/anomaly.md

@@ -0,0 +1,9 @@
+---
+title: anomaly
+core_product:
+    - alerts
+    - metrics
+related_terms:
+    - outlier
+---
+Anomaly detection is an algorithmic feature that identifies when a metric behaves differently than it has in the past. It takes into account trends, seasonal day-of-week, and time-of-day patterns. It is suited for metrics with strong trends and recurring patterns that are hard to monitor with threshold-based alerting. For more information, <a href="/monitors/types/anomaly/">see the documentation</a>.

content/en/glossary/terms/change_alert.md

@@ -0,0 +1,8 @@
+---
+title: change alert
+core_product:
+    - alerts
+related_terms:
+    - threshold alert
+---
+A change alert compares the absolute or relative (%) change in value between N minutes ago and now against a given threshold. The compared data points aren't single points but are computed using the parameters in the alert conditions section. For more information, <a href="/monitors/types/metric/?tab=change#choose-the-detection-method">see the documentation</a>.

content/en/glossary/terms/conditional_variables.md

@@ -0,0 +1,6 @@
+---
+title: conditional variables
+core_product:
+    - alerts
+---
+Conditional variables use if-else logic to display a different message depending on the state of the monitor and the details of how it was triggered. For more information, <a href="/monitors/notify/variables/?tab=is_alert#conditional-variables">see the documentation</a>.

content/en/glossary/terms/evaluation_frequency.md

@@ -0,0 +1,8 @@
+---
+title: evaluation frequency
+core_product:
+    - alerts
+related_terms:
+    - evaluation window
+---
+The evaluation frequency defines how often Datadog performs the monitor query. For most configurations, the evaluation frequency is 1 minute, which means that every minute, the monitor queries the selected data over the selected evaluation window and compares the aggregated value against the defined thresholds. For more information, <a href="/monitors/configuration/?tab=thresholdalert#evaluation-frequency">see the documentation</a>.

content/en/glossary/terms/evaluation_window.md

@@ -2,6 +2,8 @@
 title: evaluation window
 core_product:
   - alerts
+related_terms:
+  - evaluation window
 ---
 The evaluation window is the look back timeframe of the data that the monitor aggregates and uses to compare against the defined thresholds.
 For more information, <a href="/monitors/configuration/?tab=thresholdalert#evaluation-window">see the documentation</a>.

content/en/glossary/terms/multi-alert.md

@@ -2,6 +2,9 @@
 title: multi alert
 core_product:
   - alerts
+related_terms:
+  - simple alert
+  - alerting type
 ---
 A multi alert applies the alert to each source according to the monitor's group parameter. An alert notification is sent for each group that meets the set conditions.
 For more information, <a href="/monitors/configuration/?tab=thresholdalert#alert-grouping">see the documentation</a>.

content/en/glossary/terms/outlier.md

@@ -0,0 +1,8 @@
+---
+title: outlier
+core_product:
+    - alerts
+related_terms:
+    - anomaly
+---
+Outlier detection is an algorithmic feature that allows you to detect when a specific metric group behaves differently than its peers. For more information, <a href="/monitors/types/outlier">see the documentation</a>.

content/en/glossary/terms/simple_alert.md

@@ -0,0 +1,9 @@
+---
+title: simple alert
+core_product:
+    - alerts
+related_terms:
+    - multi alert
+    - alerting type
+---
+Monitor alerts that aggregate over all reporting sources. You receive one alert when the aggregated value meets the set conditions. For more information, <a href="/monitors/configuration/?tab=thresholdalert#alert-grouping">see the documentation</a>.

content/en/glossary/terms/threshold_alert.md

@@ -0,0 +1,8 @@
+---
+title: threshold alert
+core_product:
+    - alerts
+related_terms:
+    - change alert
+---
+Monitor detection method that compares metric values to a static threshold. Threshold alerts are the default detection method for metric monitors. For more information, <a href="/monitors/types/metric/?tab=threshold#choose-the-detection-method">see the documentation</a>.