Change event.name attribute into top-level event name field

CHANGELOG.md

@@ -29,6 +29,9 @@ release.
 
 ### Events
 
+- Change `event.name` attribute into top-level event name field.
+  ([#4320](https://github.com/open-telemetry/opentelemetry-specification/pull/4320))
+
 ### Baggage
 
 ### Resource

specification/logs/api.md

@@ -173,8 +173,7 @@ formatted as an [event](./data-model.md#events).
 
 **Parameters:**
 
-* The [`Name`](https://github.com/open-telemetry/semantic-conventions/blob/main/docs/general/events.md)
-  of the Event.
+* [Event Name](./data-model.md#event-name) (required)
 * [Timestamp](./data-model.md#field-timestamp) (optional)
 * [Observed Timestamp](./data-model.md#field-observedtimestamp) (optional). If unspecified
   the implementation SHOULD set it equal to the current time.

specification/logs/data-model.md

@@ -15,6 +15,7 @@
     + [Type `map`](#type-mapstring-any)
   * [Field Kinds](#field-kinds)
 - [Log and Event Record Definition](#log-and-event-record-definition)
+  * [Field: `EventName`](#field-eventname)
   * [Field: `Timestamp`](#field-timestamp)
   * [Field: `ObservedTimestamp`](#field-observedtimestamp)
   * [Trace Context Fields](#trace-context-fields)
@@ -197,6 +198,7 @@ Here is the list of fields in a log record:
 
 Field Name     |Description
 ---------------|--------------------------------------------
+EventName      |Name that identifies the class / type of event.
 Timestamp      |Time when the event occurred.
 ObservedTimestamp|Time when the event was observed.
 TraceId        |Request trace id.
@@ -211,6 +213,13 @@ Attributes     |Additional information about the event.
 
 Below is the detailed description of each field.
 
+### Field: `EventName`
+
+Type: string.
+
+Description: Name that identifies the class / type of event.
+This name SHOULD uniquely identify the event structure (both attributes and body).
+
 ### Field: `Timestamp`
 
 Type: Timestamp, uint64 nanoseconds since Unix epoch.

specification/versioning-and-stability.md

@@ -249,7 +249,7 @@ Semantic Conventions defines the set of fields in the OTLP data model:
     of well-known values.
   - For log records that are [Log Events](logs/event-api.md)
     - The following data provided to [emit event](logs/event-api.md#emit-event):
-      - The event name (the value of the `event.name` attribute)
+      - The event name
 
 Things not listed in the above are not expected to remain stable via semantic
 convention and are allowed (or expected) to change. A few examples: