diff --git a/backend/src/main/java/com/nttdata/calender/changes/Change.java b/backend/src/main/java/com/nttdata/calender/changes/Change.java
index fdb93ce..d0fd1bc 100644
--- a/backend/src/main/java/com/nttdata/calender/changes/Change.java
+++ b/backend/src/main/java/com/nttdata/calender/changes/Change.java
@@ -157,28 +157,61 @@ public class Change {
                 return new ChangeResponse(entriesSize, changes);
         }
 
-        public boolean flagApproval(boolean approval, int status) {
-                boolean approvableStatus = (status == 1 || status == 10);
-                return approval && approvableStatus;
+        /**
+         * Determines if the change item can be approved based on the approval status
+         * and the current state.
+         *
+         * @param approval The flag indicating whether the change item has been
+         *                 approved.
+         * @param state   The current state of the change item.
+         * @return {@code true} if the change item can be approved, {@code false}
+         *         otherwise.
+         */
+        public boolean flagApproval(boolean approval, int state) {
+                boolean approvableState = (state == 1 || state == 10);
+                return approval && approvableState;
         }
 
-        public boolean flagCancel(String supportGroupId, int status) throws ARException {
+        /**
+         * Determines if the change item can be canceled based on the support group ID
+         * and the current state.
+         *
+         * @param supportGroupId The ID of the support group associated with the change item
+         * @param state         The current state of the change item
+         * @return {@code true} if the change item can be canceled, {@code false} otherwise.
+         * @throws ARException if an error occurs during the operation
+         */
+        public boolean flagCancel(String supportGroupId, int state) throws ARException {
                 var queryRoles = new Query.QueryBuilder("CTM:SupportGroupFuncRoleLookUp").addFieldId("Role", 1000000014)
                                 .build();
                 var role = api.queryFieldsById("\'Support Group ID\' = \"" + supportGroupId + "\"",
                                 queryRoles.getFieldIds(), queryRoles.getFormName(), null, 0, 0)
                                 .get(0).get(queryRoles.getFieldId("Role")).toString();
 
-                boolean approvableStatus = status == 1;
+                boolean approvableState = state == 1;
                 boolean isChangeManager = role.equals("Change Manager");
-                
-                return approvableStatus && isChangeManager;
+
+                return approvableState && isChangeManager;
         }
 
-        public boolean flagPermit(int status) {
-                return status == 0;
+        /**
+         * Determines if the change item has a permit based on the current state.
+         *
+         * @param state The current state of the change item.
+         * @return {@code true} if the change item has a permit, {@code false} otherwise.
+         */
+        public boolean flagPermit(int state) {
+                return state == 0;
         }
 
+        /**
+         * Checks if the logged in user is in the approval list for the specified change item.
+         *
+         * @param user     The username of the user to check
+         * @param changeNr The change number of the change item
+         * @return {@code true} if the user is in the approval list, {@code false} otherwise.
+         * @throws ARException if an error occurs during the operation
+         */
         public boolean inApprovalList(String user, String changeNr) throws ARException {
                 var queryApprovalList = new Query.QueryBuilder("ASF:OverviewConsole_TicketsJoinAPDetailSignature")
                                 .addFieldId("Approvers", 13207).build();
@@ -193,8 +226,7 @@ public class Change {
          * Returns the {@link Value} of an entry based on the provided description.
          *
          * @param entry       the {@link Entry} from which a value will be retrieved
-         * @param description the name of the field from which the value should be
-         *                    retrieved
+         * @param description the name of the field from which the value should be retrieved
          * @return the value of the entry
          */
         private Value getValue(Entry entry, String description) {
@@ -206,8 +238,7 @@ public class Change {
          * timestamp is null.
          *
          * @param entry       the {@link Entry} containing the timestamp value
-         * @param description the description of the field containing the timestamp
-         *                    value
+         * @param description the description of the field containing the timestamp value
          * @return the converted {@link Date} or null if the timestamp is null
          */
         private Date timestampToDateById(Entry entry, String description) {
diff --git a/backend/src/main/java/com/nttdata/calender/changes/ChangeItem.java b/backend/src/main/java/com/nttdata/calender/changes/ChangeItem.java
index 1f1f8f0..2c35558 100644
--- a/backend/src/main/java/com/nttdata/calender/changes/ChangeItem.java
+++ b/backend/src/main/java/com/nttdata/calender/changes/ChangeItem.java
@@ -160,40 +160,87 @@ public class ChangeItem {
         this.changeImplementerPersonId = changeImplementerPersonId;
     }
 
+    /**
+     * Retrieves the flag indicating whether the change item has a permit.
+     *
+     * @return {@code true} if the change item has a permit, {@code false}
+     *         otherwise.
+     */
     public boolean getFlagPermit() {
         return this.flagPermit;
     }
 
+    /**
+     * Sets the flag indicating whether the change item has a permit.
+     *
+     * @param flagPermit {@code true} if the change item has a permit, {@code false}
+     *                   otherwise.
+     */
     public void setFlagPermit(boolean flagPermit) {
         this.flagPermit = flagPermit;
     }
 
+    /**
+     * Retrieves the flag indicating whether the change item has been approved.
+     *
+     * @return {@code true} if the change item has been approved, {@code false}
+     *         otherwise.
+     */
     public boolean getFlagApprove() {
         return this.flagApprove;
     }
 
+    /**
+     * Sets the flag indicating whether the change item has been approved.
+     *
+     * @param flagApprove {@code true} if the change item has been approved,
+     *                    {@code false} otherwise.
+     */
     public void setFlagApprove(boolean flagApprove) {
         this.flagApprove = flagApprove;
     }
 
+    /**
+     * Retrieves the flag indicating whether the change item has been rejected.
+     *
+     * @return {@code true} if the change item has been rejected, {@code false}
+     *         otherwise.
+     */
     public boolean getFlagReject() {
         return this.flagReject;
     }
 
+    /**
+     * Sets the flag indicating whether the change item has been rejected.
+     *
+     * @param flagReject {@code true} if the change item has been rejected,
+     *                   {@code false} otherwise.
+     */
     public void setFlagReject(boolean flagReject) {
         this.flagReject = flagReject;
     }
 
+    /**
+     * Retrieves the flag indicating whether the change item has been canceled.
+     *
+     * @return {@code true} if the change item has been canceled, {@code false}
+     *         otherwise.
+     */
     public boolean getFlagCancel() {
         return this.flagCancel;
     }
 
+    /**
+     * Sets the flag indicating whether the change item has been canceled.
+     *
+     * @param flagCancel {@code true} if the change item has been canceled,
+     *                   {@code false} otherwise.
+     */
     public void setFlagCancel(boolean flagCancel) {
         this.flagCancel = flagCancel;
     }
 
     /**
-     * 
      * Gets the status reason of the change item.
      * 
      * @return String that represents the status reason of the change item.