diff --git a/app/src/main/java/com/github/swent/echo/data/model/AssociationHeader.kt b/app/src/main/java/com/github/swent/echo/data/model/AssociationHeader.kt
index 7c6d5513c..e42abafec 100644
--- a/app/src/main/java/com/github/swent/echo/data/model/AssociationHeader.kt
+++ b/app/src/main/java/com/github/swent/echo/data/model/AssociationHeader.kt
@@ -3,6 +3,13 @@ package com.github.swent.echo.data.model
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 
+/**
+ * A simplified version of the Association data class, used to embed into other data classes
+ * avoiding to embed the complete heavy Association data class.
+ *
+ * @property associationId the unique id of the association
+ * @property name the name of the association
+ */
 @Serializable
 data class AssociationHeader(
     @SerialName("association_id") val associationId: String,
diff --git a/app/src/main/java/com/github/swent/echo/data/model/DataModel.kt b/app/src/main/java/com/github/swent/echo/data/model/DataModel.kt
index dce402f98..50357c628 100644
--- a/app/src/main/java/com/github/swent/echo/data/model/DataModel.kt
+++ b/app/src/main/java/com/github/swent/echo/data/model/DataModel.kt
@@ -1,5 +1,9 @@
 package com.github.swent.echo.data.model
 
+/**
+ * Supertype for other data classes having a unique id. Provides a unified way to get the unique id
+ * of the object.
+ */
 sealed class DataModel {
     fun getId(): String =
         when (this) {
diff --git a/app/src/main/java/com/github/swent/echo/data/model/EventCreator.kt b/app/src/main/java/com/github/swent/echo/data/model/EventCreator.kt
index 776b5fc7f..81e198035 100644
--- a/app/src/main/java/com/github/swent/echo/data/model/EventCreator.kt
+++ b/app/src/main/java/com/github/swent/echo/data/model/EventCreator.kt
@@ -4,7 +4,8 @@ import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 
 /**
- * A creator of an event.
+ * A creator of an event. A simplified version of the Event data class, used to embed into other
+ * data classes avoiding to embed the complete heavy Event data class.
  *
  * @property userId The ID of the user who created the event.
  * @property name The name of the creator. This same name as in the [UserProfile] corresponding to