diff --git a/src/ORM/HasMany.php b/src/ORM/HasMany.php
deleted file mode 100644
index a8a422f..0000000
--- a/src/ORM/HasMany.php
+++ /dev/null
@@ -1,21 +0,0 @@
-<?php
-
-namespace ORM;
-
-class HasMany {
-
-    private $foreignObject;
-    private $remoteField;
-    private $localElement;
-
-    function __construct($foreignObject, $remoteField, $localElement) {
-        $this->foreignObject = $foreignObject;
-        $this->remoteField = $remoteField;
-        $this->localElement = $localElement;
-    }
-
-    function get() {
-        return $this->foreignObject::findMany(Array($this->remoteField => Array('=', $this->localElement->id)));
-    }
-
-}
diff --git a/src/ORM/HasOne.php b/src/ORM/HasOne.php
deleted file mode 100644
index 23996eb..0000000
--- a/src/ORM/HasOne.php
+++ /dev/null
@@ -1,22 +0,0 @@
-<?php
-
-namespace ORM
-;
-
-class HasOne{
-
-    private $foreignObject;
-    private $remoteField;
-    private $localElement;
-
-    function __construct($foreignObject, $remoteField, $localElement) {
-        $this->foreignObject = $foreignObject;
-        $this->remoteField = $remoteField;
-        $this->localElement = $localElement;
-    }
-    
-    function get(){
-        return $this->foreignObject::findOne(Array($this->remoteField => Array('=', $this->localElement->id)));
-    }
-    
-}
diff --git a/src/ORM/BelongsTo.php b/src/ORM/Relations/BelongsTo.php
similarity index 65%
rename from src/ORM/BelongsTo.php
rename to src/ORM/Relations/BelongsTo.php
index bc48f27..a605fb2 100644
--- a/src/ORM/BelongsTo.php
+++ b/src/ORM/Relations/BelongsTo.php
@@ -1,7 +1,19 @@
 <?php
 
-namespace ORM;
+namespace ORM\Relations;
 
+/**
+ * BelongsTo
+ *
+ * Defines that, this object is part of an other class.
+ * The local field must match the id of an other class.
+ *
+ * Table Post    = (id, name, content)
+ * Table Comment = (id, name, content, postid)
+ *
+ * This relation will be created on the comment class
+ * Making reference to the post class
+ */
 class BelongsTo {
 
     private $foreignObject;
diff --git a/src/ORM/BelongsToMany.php b/src/ORM/Relations/BelongsToMany.php
similarity index 67%
rename from src/ORM/BelongsToMany.php
rename to src/ORM/Relations/BelongsToMany.php
index 9f6b385..0877f0e 100644
--- a/src/ORM/BelongsToMany.php
+++ b/src/ORM/Relations/BelongsToMany.php
@@ -1,7 +1,22 @@
 <?php
 
-namespace ORM;
+namespace ORM\Relations;
 
+use ORM\DBInstance;
+use ORM\Collection;
+
+/**
+ * Belongs to Many
+ *
+ * Defines that this object is related to many other instances
+ * of other classes throw a pivot table.
+ *
+ * Table Post    = (id, name, content)
+ * Table Tag     = (id, name)
+ * Table Post_Tag = (id, postid, tagid)
+ *
+ * This relation will be created in both classes
+ */
 class BelongsToMany {
 
     private $localObject;
@@ -12,6 +27,17 @@ class BelongsToMany {
     private $remoteFilter;
     private $remoteLimit;
 
+    /**
+     * Build the Connection
+     *
+     * @param mixed $localObject
+     * @param mixed $foreignObject
+     * @param mixed $pivotTable
+     * @param mixed $localInPivot
+     * @param mixed $remoteInPivot
+     * @param mixed $remoteFilter
+     * @param mixed $remoteLimit
+     */
     function __construct($localObject, $foreignObject, $pivotTable, $localInPivot, $remoteInPivot, $remoteFilter = Array(), $remoteLimit = Array()) {
         $this->localObject = $localObject;
         $this->foreignObject = $foreignObject;
diff --git a/src/ORM/BelongsToManyExtended.php b/src/ORM/Relations/BelongsToManyExtended.php
similarity index 93%
rename from src/ORM/BelongsToManyExtended.php
rename to src/ORM/Relations/BelongsToManyExtended.php
index f0c7e00..369a71b 100644
--- a/src/ORM/BelongsToManyExtended.php
+++ b/src/ORM/Relations/BelongsToManyExtended.php
@@ -1,6 +1,9 @@
 <?php
 
-namespace ORM;
+namespace ORM\Relations;
+
+use ORM\DBInstance;
+use ORM\Collection;
 
 class BelongsToManyExtended {
 
diff --git a/src/ORM/Relations/HasMany.php b/src/ORM/Relations/HasMany.php
new file mode 100644
index 0000000..1b408ae
--- /dev/null
+++ b/src/ORM/Relations/HasMany.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace ORM\Relations;
+
+/**
+ * HasMany
+ *
+ * Defines that, this object has many instances of other Object
+ *
+ * Table Post    = (id, name, content)
+ * Table Comment = (id, name, content, postid)
+ *
+ * This relation will be created on the Post class
+ * Making reference to the Comment class
+ */
+class HasMany
+{
+
+    private $foreignObject;
+    private $remoteField;
+    private $localElement;
+
+    /**
+     * Return the Relation
+     *
+     * @param mixed $foreignObject
+     * @param mixed $remoteField
+     * @param mixed $localElement
+     */
+    function __construct($foreignObject, $remoteField, $localElement)
+    {
+        $this->foreignObject = $foreignObject;
+        $this->remoteField = $remoteField;
+        $this->localElement = $localElement;
+    }
+
+    /**
+     * Get the data of the relation
+     */
+    function get()
+    {
+        return $this->foreignObject::findMany(array($this->remoteField => array('=', $this->localElement->id)));
+    }
+
+}
diff --git a/src/ORM/Relations/HasOne.php b/src/ORM/Relations/HasOne.php
new file mode 100644
index 0000000..484d751
--- /dev/null
+++ b/src/ORM/Relations/HasOne.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace ORM\Relations;
+
+/**
+  * Has One
+  *
+  * Defines that, this object has a child only one object in other class.
+  *
+  * Table user  = (id, name)
+  * Table phone = (id, number, userid)
+  *
+  * This relation will be created on the User class
+  * making reference to the Phone class
+ */
+class HasOne
+{
+
+    private $foreignObject;
+    private $remoteField;
+    private $localElement;
+
+    function __construct($foreignObject, $remoteField, $localElement)
+    {
+        $this->foreignObject = $foreignObject;
+        $this->remoteField = $remoteField;
+        $this->localElement = $localElement;
+    }
+
+    function get()
+    {
+        return $this->foreignObject::findOne(array($this->remoteField => array('=', $this->localElement->id)));
+    }
+
+}