diff --git a/lc-eo-changestream/src/main/java/lc/eo/changestream/ChangeSet.java b/lc-eo-changestream/src/main/java/lc/eo/changestream/ChangeSet.java
index 1893e0a9f3bfa567ee680632959695cb8e4538d0..8091b68ce7a87195a8f9c4108c7b716642e12f09 100644
--- a/lc-eo-changestream/src/main/java/lc/eo/changestream/ChangeSet.java
+++ b/lc-eo-changestream/src/main/java/lc/eo/changestream/ChangeSet.java
@@ -5,6 +5,13 @@ import lc.eo.EOLoop;
 
 import java.util.HashSet;
 
+/**
+ * This class provides a change set which gathers an atomic set of changes which have occurred in a
+ * {@link ChangeStream}.
+ *
+ * @author C. Alexander Leigh
+ * @since mk1
+ */
 public class ChangeSet {
     private final HashSet<EO> objectsDirty = new HashSet<>();
     private final HashSet<EOLoop> loopsDirty = new HashSet<>();
diff --git a/lc-eo-changestream/src/main/java/lc/eo/changestream/ChangeStream.java b/lc-eo-changestream/src/main/java/lc/eo/changestream/ChangeStream.java
index 771fa77cb78e98e9d605a3cff3efc8aa1cf57700..efc3005d4b86f8245166f3c9d643c7fa0451d399 100644
--- a/lc-eo-changestream/src/main/java/lc/eo/changestream/ChangeStream.java
+++ b/lc-eo-changestream/src/main/java/lc/eo/changestream/ChangeStream.java
@@ -7,6 +7,12 @@ import lc.eo.EditTracker;
 
 import java.io.Serializable;
 
+/**
+ * This class monitors {@link EO} graphs for changes and stores them in {@link ChangeSet} objects.
+ *
+ * @author C. Alexander Leigh
+ * @since mk1
+ */
 public class ChangeStream implements EditTracker {
     private ChangeSet changeSet = new ChangeSet();