diff --git a/framework/rbac/Assignment.php b/framework/rbac/Assignment.php
index 1e21d37a55..1caab01f11 100644
--- a/framework/rbac/Assignment.php
+++ b/framework/rbac/Assignment.php
@@ -27,9 +27,9 @@ class Assignment extends Object
      */
     public $manager;
     /**
-     * @var string the business rule associated with this assignment
+     * @var string name of the rule associated with this assignment
      */
-    public $bizRule;
+    public $ruleName;
     /**
      * @var mixed additional data for this assignment
      */
diff --git a/framework/rbac/DbManager.php b/framework/rbac/DbManager.php
index e6d0da4bf6..c7e1d64c84 100644
--- a/framework/rbac/DbManager.php
+++ b/framework/rbac/DbManager.php
@@ -38,19 +38,27 @@ class DbManager extends Manager
      * with a DB connection object.
      */
     public $db = 'db';
+
     /**
-     * @var string the name of the table storing authorization items. Defaults to 'auth_item'.
+     * @var string the name of the table storing authorization items. Defaults to "auth_item".
      */
     public $itemTable = '{{%auth_item}}';
+
     /**
-     * @var string the name of the table storing authorization item hierarchy. Defaults to 'auth_item_child'.
+     * @var string the name of the table storing authorization item hierarchy. Defaults to "auth_item_child".
      */
     public $itemChildTable = '{{%auth_item_child}}';
+
     /**
-     * @var string the name of the table storing authorization item assignments. Defaults to 'auth_assignment'.
+     * @var string the name of the table storing authorization item assignments. Defaults to "auth_assignment".
      */
     public $assignmentTable = '{{%auth_assignment}}';
 
+    /**
+     * @var string the name of the table storing rules. Defaults to "auth_rule".
+     */
+    public $ruleTable = '{{%auth_rule}}';
+
     private $_usingSqlite;
 
     /**
@@ -102,13 +110,13 @@ class DbManager extends Manager
         if (!isset($params['userId'])) {
             $params['userId'] = $userId;
         }
-        if ($this->executeBizRule($item->bizRule, $params, $item->data)) {
+        if ($this->executeRule($item->ruleName, $params, $item->data)) {
             if (in_array($itemName, $this->defaultRoles)) {
                 return true;
             }
             if (isset($assignments[$itemName])) {
                 $assignment = $assignments[$itemName];
-                if ($this->executeBizRule($assignment->bizRule, $params, $assignment->data)) {
+                if ($this->executeRule($assignment->bizRule, $params, $assignment->data)) {
                     return true;
                 }
             }
@@ -233,15 +241,16 @@ class DbManager extends Manager
 
     /**
      * Assigns an authorization item to a user.
-     * @param mixed $userId the user ID (see [[\yii\web\User::id]])
+     *
+*@param mixed $userId the user ID (see [[\yii\web\User::id]])
      * @param string $itemName the item name
-     * @param string $bizRule the business rule to be executed when [[checkAccess()]] is called
+     * @param string $ruleName the business rule to be executed when [[checkAccess()]] is called
      * for this particular authorization item.
      * @param mixed $data additional data associated with this assignment
      * @return Assignment the authorization assignment information.
      * @throws InvalidParamException if the item does not exist or if the item has already been assigned to the user
      */
-    public function assign($userId, $itemName, $bizRule = null, $data = null)
+    public function assign($userId, $itemName, $ruleName = null, $data = null)
     {
         if ($this->usingSqlite() && $this->getItem($itemName) === null) {
             throw new InvalidParamException("The item '$itemName' does not exist.");
@@ -250,7 +259,7 @@ class DbManager extends Manager
             ->insert($this->assignmentTable, [
                 'user_id' => $userId,
                 'item_name' => $itemName,
-                'biz_rule' => $bizRule,
+                'biz_rule' => $ruleName,
                 'data' => $data === null ? null : serialize($data),
             ])
             ->execute();
@@ -259,7 +268,7 @@ class DbManager extends Manager
             'manager' => $this,
             'userId' => $userId,
             'itemName' => $itemName,
-            'bizRule' => $bizRule,
+            'bizRule' => $ruleName,
             'data' => $data,
         ]);
     }
@@ -371,7 +380,7 @@ class DbManager extends Manager
      * Saves the changes to an authorization assignment.
      * @param Assignment $assignment the assignment that has been changed.
      */
-    public function saveAssignment($assignment)
+    public function saveAssignment(Assignment $assignment)
     {
         $this->db->createCommand()
             ->update($this->assignmentTable, [
@@ -437,23 +446,24 @@ class DbManager extends Manager
      * It has three types: operation, task and role.
      * Authorization items form a hierarchy. Higher level items inheirt permissions representing
      * by lower level items.
+     *
      * @param string $name the item name. This must be a unique identifier.
      * @param integer $type the item type (0: operation, 1: task, 2: role).
      * @param string $description description of the item
-     * @param string $bizRule business rule associated with the item. This is a piece of
+     * @param string $rule business rule associated with the item. This is a piece of
      * PHP code that will be executed when [[checkAccess()]] is called for the item.
      * @param mixed $data additional data associated with the item.
      * @return Item the authorization item
      * @throws Exception if an item with the same name already exists
      */
-    public function createItem($name, $type, $description = '', $bizRule = null, $data = null)
+    public function createItem($name, $type, $description = '', $rule = null, $data = null)
     {
         $this->db->createCommand()
             ->insert($this->itemTable, [
                 'name' => $name,
                 'type' => $type,
                 'description' => $description,
-                'biz_rule' => $bizRule,
+                'biz_rule' => $rule,
                 'data' => $data === null ? null : serialize($data),
             ])
             ->execute();
@@ -463,7 +473,7 @@ class DbManager extends Manager
             'name' => $name,
             'type' => $type,
             'description' => $description,
-            'bizRule' => $bizRule,
+            'bizRule' => $rule,
             'data' => $data,
         ]);
     }
@@ -525,7 +535,7 @@ class DbManager extends Manager
      * @param Item $item the item to be saved.
      * @param string $oldName the old item name. If null, it means the item name is not changed.
      */
-    public function saveItem($item, $oldName = null)
+    public function saveItem(Item $item, $oldName = null)
     {
         if ($this->usingSqlite() && $oldName !== null && $item->getName() !== $oldName) {
             $this->db->createCommand()
@@ -544,7 +554,7 @@ class DbManager extends Manager
                 'name' => $item->getName(),
                 'type' => $item->type,
                 'description' => $item->description,
-                'biz_rule' => $item->bizRule,
+                'rule_name' => $item->ruleName,
                 'data' => $item->data === null ? null : serialize($item->data),
             ], [
                 'name' => $oldName === null ? $item->getName() : $oldName,
@@ -604,4 +614,45 @@ class DbManager extends Manager
     {
         return $this->_usingSqlite;
     }
-}
+
+    /**
+     * Removes the specified rule.
+     *
+     * @param string $name the name of the rule to be removed
+     * @return boolean whether the rule exists in the storage and has been removed
+     */
+    public function removeRule($name)
+    {
+        // TODO: Implement removeRule() method.
+    }
+
+    /**
+     * Saves the changes to the rule.
+     *
+     * @param Rule $rule the rule that has been changed.
+     */
+    public function saveRule(Rule $rule)
+    {
+        // TODO: Implement saveRule() method.
+    }
+
+    /**
+     * Returns rule given its name.
+     *
+     * @param string $name name of the rule.
+     * @return Rule
+     */
+    public function getRule($name)
+    {
+        // TODO: Implement getRule() method.
+    }
+
+    /**
+     * Returns all rules.
+     *
+     * @return Rule[]
+     */
+    public function getRules()
+    {
+        // TODO: Implement getRules() method.
+    }}
diff --git a/framework/rbac/Item.php b/framework/rbac/Item.php
index 67e4951faa..bacef3d33f 100644
--- a/framework/rbac/Item.php
+++ b/framework/rbac/Item.php
@@ -40,9 +40,9 @@ class Item extends Object
      */
     public $description;
     /**
-     * @var string the business rule associated with this item
+     * @var string name of the rule associated with this item
      */
-    public $bizRule;
+    public $ruleName;
     /**
      * @var mixed the additional data associated with this item
      */
@@ -66,7 +66,7 @@ class Item extends Object
     public function checkAccess($itemName, $params = [])
     {
         Yii::trace('Checking permission: ' . $this->_name, __METHOD__);
-        if ($this->manager->executeBizRule($this->bizRule, $params, $this->data)) {
+        if ($this->manager->executeRule($this->ruleName, $params, $this->data)) {
             if ($this->_name == $itemName) {
                 return true;
             }
@@ -146,17 +146,18 @@ class Item extends Object
 
     /**
      * Assigns this item to a user.
-     * @param mixed $userId the user ID (see [[\yii\web\User::id]])
-     * @param string $bizRule the business rule to be executed when [[checkAccess()]] is called
+     *
+*@param mixed $userId the user ID (see [[\yii\web\User::id]])
+     * @param Rule $rule the rule to be executed when [[checkAccess()]] is called
      * for this particular authorization item.
      * @param mixed $data additional data associated with this assignment
      * @return Assignment the authorization assignment information.
      * @throws \yii\base\Exception if the item has already been assigned to the user
      * @see Manager::assign
      */
-    public function assign($userId, $bizRule = null, $data = null)
+    public function assign($userId, Rule $rule = null, $data = null)
     {
-        return $this->manager->assign($userId, $this->_name, $bizRule, $data);
+        return $this->manager->assign($userId, $this->_name, $rule, $data);
     }
 
     /**
diff --git a/framework/rbac/Manager.php b/framework/rbac/Manager.php
index d1798e3f23..1ab494f04a 100644
--- a/framework/rbac/Manager.php
+++ b/framework/rbac/Manager.php
@@ -43,18 +43,13 @@ use yii\base\InvalidParamException;
  */
 abstract class Manager extends Component
 {
-    /**
-     * @var boolean Enable error reporting for bizRules.
-     */
-    public $showErrors = false;
-
     /**
      * @var array list of role names that are assigned to all users implicitly.
      * These roles do not need to be explicitly assigned to any user.
      * When calling [[checkAccess()]], these roles will be checked first.
      * For performance reason, you should minimize the number of such roles.
      * A typical usage of such roles is to define an 'authenticated' role and associate
-     * it with a biz rule which checks if the current user is authenticated.
+     * it with a rule which checks if the current user is authenticated.
      * And then declare 'authenticated' in this property so that it can be applied to
      * every authenticated user.
      */
@@ -63,48 +58,52 @@ abstract class Manager extends Component
     /**
      * Creates a role.
      * This is a shortcut method to [[Manager::createItem()]].
+     *
      * @param string $name the item name
      * @param string $description the item description.
-     * @param string $bizRule the business rule associated with this item
+     * @param string $ruleName name of the rule associated with this item
      * @param mixed $data additional data to be passed when evaluating the business rule
      * @return Item the authorization item
      */
-    public function createRole($name, $description = '', $bizRule = null, $data = null)
+    public function createRole($name, $description = '', $ruleName = null, $data = null)
     {
-        return $this->createItem($name, Item::TYPE_ROLE, $description, $bizRule, $data);
+        return $this->createItem($name, Item::TYPE_ROLE, $description, $ruleName, $data);
     }
 
     /**
      * Creates a task.
      * This is a shortcut method to [[Manager::createItem()]].
+     *
      * @param string $name the item name
      * @param string $description the item description.
-     * @param string $bizRule the business rule associated with this item
+     * @param string $ruleName name of the rule associated with this item
      * @param mixed $data additional data to be passed when evaluating the business rule
      * @return Item the authorization item
      */
-    public function createTask($name, $description = '', $bizRule = null, $data = null)
+    public function createTask($name, $description = '', $ruleName = null, $data = null)
     {
-        return $this->createItem($name, Item::TYPE_TASK, $description, $bizRule, $data);
+        return $this->createItem($name, Item::TYPE_TASK, $description, $ruleName, $data);
     }
 
     /**
      * Creates an operation.
      * This is a shortcut method to [[Manager::createItem()]].
+     *
      * @param string $name the item name
      * @param string $description the item description.
-     * @param string $bizRule the business rule associated with this item
+     * @param string $ruleName name of the rule associated with this item
      * @param mixed $data additional data to be passed when evaluating the business rule
      * @return Item the authorization item
      */
-    public function createOperation($name, $description = '', $bizRule = null, $data = null)
+    public function createOperation($name, $description = '', $ruleName = null, $data = null)
     {
-        return $this->createItem($name, Item::TYPE_OPERATION, $description, $bizRule, $data);
+        return $this->createItem($name, Item::TYPE_OPERATION, $description, $ruleName, $data);
     }
 
     /**
      * Returns roles.
      * This is a shortcut method to [[Manager::getItems()]].
+     *
      * @param mixed $userId the user ID. If not null, only the roles directly assigned to the user
      * will be returned. Otherwise, all roles will be returned.
      * @return Item[] roles (name => AuthItem)
@@ -117,6 +116,7 @@ abstract class Manager extends Component
     /**
      * Returns tasks.
      * This is a shortcut method to [[Manager::getItems()]].
+     *
      * @param mixed $userId the user ID. If not null, only the tasks directly assigned to the user
      * will be returned. Otherwise, all tasks will be returned.
      * @return Item[] tasks (name => AuthItem)
@@ -129,6 +129,7 @@ abstract class Manager extends Component
     /**
      * Returns operations.
      * This is a shortcut method to [[Manager::getItems()]].
+     *
      * @param mixed $userId the user ID. If not null, only the operations directly assigned to the user
      * will be returned. Otherwise, all operations will be returned.
      * @return Item[] operations (name => AuthItem)
@@ -139,16 +140,21 @@ abstract class Manager extends Component
     }
 
     /**
-     * Executes the specified business rule.
-     * @param string $bizRule the business rule to be executed.
+     * Executes the specified rule.
+     *
+     * @param string $ruleName name of the rule to be executed.
      * @param array $params parameters passed to [[Manager::checkAccess()]].
      * @param mixed $data additional data associated with the authorization item or assignment.
-     * @return boolean whether the business rule returns true.
-     * If the business rule is empty, it will still return true.
+     * @return boolean whether the rule execution returns true.
+     * If the rule is empty, it will still return true.
      */
-    public function executeBizRule($bizRule, $params, $data)
+    public function executeRule($ruleName, $params, $data)
     {
-        return $bizRule === '' || $bizRule === null || ($this->showErrors ? eval($bizRule) != 0 : @eval($bizRule) != 0);
+        $rule = $this->getRule($ruleName);
+        if ($rule) {
+            return $rule->execute($params, $data);
+        }
+        return true;
     }
 
     /**
@@ -170,7 +176,7 @@ abstract class Manager extends Component
      * @param mixed $userId the user ID. This should be either an integer or a string representing
      * the unique identifier of a user. See [[\yii\web\User::id]].
      * @param string $itemName the name of the operation that we are checking access to
-     * @param array $params name-value pairs that would be passed to biz rules associated
+     * @param array $params name-value pairs that would be passed to rules associated
      * with the tasks and roles assigned to the user.
      * @return boolean whether the operations can be performed by the user.
      */
@@ -182,22 +188,24 @@ abstract class Manager extends Component
      * It has three types: operation, task and role.
      * Authorization items form a hierarchy. Higher level items inheirt permissions representing
      * by lower level items.
+     *
      * @param string $name the item name. This must be a unique identifier.
      * @param integer $type the item type (0: operation, 1: task, 2: role).
      * @param string $description description of the item
-     * @param string $bizRule business rule associated with the item. This is a piece of
-     * PHP code that will be executed when [[checkAccess()]] is called for the item.
+     * @param string $ruleName name of the rule associated with the item.
      * @param mixed $data additional data associated with the item.
      * @throws \yii\base\Exception if an item with the same name already exists
      * @return Item the authorization item
      */
-    abstract public function createItem($name, $type, $description = '', $bizRule = null, $data = null);
+    abstract public function createItem($name, $type, $description = '', $ruleName = null, $data = null);
+
     /**
      * Removes the specified authorization item.
      * @param string $name the name of the item to be removed
      * @return boolean whether the item exists in the storage and has been removed
      */
     abstract public function removeItem($name);
+
     /**
      * Returns the authorization items of the specific type and user.
      * @param mixed $userId the user ID. Defaults to null, meaning returning all items even if
@@ -207,18 +215,20 @@ abstract class Manager extends Component
      * @return Item[] the authorization items of the specific type.
      */
     abstract public function getItems($userId = null, $type = null);
+
     /**
      * Returns the authorization item with the specified name.
      * @param string $name the name of the item
      * @return Item the authorization item. Null if the item cannot be found.
      */
     abstract public function getItem($name);
+
     /**
      * Saves an authorization item to persistent storage.
      * @param Item $item the item to be saved.
      * @param string $oldName the old item name. If null, it means the item name is not changed.
      */
-    abstract public function saveItem($item, $oldName = null);
+    abstract public function saveItem(Item $item, $oldName = null);
 
     /**
      * Adds an item as a child of another item.
@@ -227,6 +237,7 @@ abstract class Manager extends Component
      * @throws \yii\base\Exception if either parent or child doesn't exist or if a loop has been detected.
      */
     abstract public function addItemChild($itemName, $childName);
+
     /**
      * Removes a child from its parent.
      * Note, the child item is not deleted. Only the parent-child relationship is removed.
@@ -235,6 +246,7 @@ abstract class Manager extends Component
      * @return boolean whether the removal is successful
      */
     abstract public function removeItemChild($itemName, $childName);
+
     /**
      * Returns a value indicating whether a child exists within a parent.
      * @param string $itemName the parent item name
@@ -242,6 +254,7 @@ abstract class Manager extends Component
      * @return boolean whether the child exists
      */
     abstract public function hasItemChild($itemName, $childName);
+
     /**
      * Returns the children of the specified item.
      * @param mixed $itemName the parent item name. This can be either a string or an array.
@@ -252,15 +265,17 @@ abstract class Manager extends Component
 
     /**
      * Assigns an authorization item to a user.
+     *
      * @param mixed $userId the user ID (see [[\yii\web\User::id]])
      * @param string $itemName the item name
-     * @param string $bizRule the business rule to be executed when [[checkAccess()]] is called
+     * @param string $ruleName name of the rule to be executed when [[checkAccess()]] is called
      * for this particular authorization item.
      * @param mixed $data additional data associated with this assignment
      * @return Assignment the authorization assignment information.
      * @throws \yii\base\Exception if the item does not exist or if the item has already been assigned to the user
      */
-    abstract public function assign($userId, $itemName, $bizRule = null, $data = null);
+    abstract public function assign($userId, $itemName, $ruleName = null, $data = null);
+
     /**
      * Revokes an authorization assignment from a user.
      * @param mixed $userId the user ID (see [[\yii\web\User::id]])
@@ -268,12 +283,14 @@ abstract class Manager extends Component
      * @return boolean whether removal is successful
      */
     abstract public function revoke($userId, $itemName);
+
     /**
      * Revokes all authorization assignments from a user.
      * @param mixed $userId the user ID (see [[\yii\web\User::id]])
      * @return boolean whether removal is successful
      */
     abstract public function revokeAll($userId);
+
     /**
      * Returns a value indicating whether the item has been assigned to the user.
      * @param mixed $userId the user ID (see [[\yii\web\User::id]])
@@ -281,6 +298,7 @@ abstract class Manager extends Component
      * @return boolean whether the item has been assigned to the user.
      */
     abstract public function isAssigned($userId, $itemName);
+
     /**
      * Returns the item assignment information.
      * @param mixed $userId the user ID (see [[\yii\web\User::id]])
@@ -296,19 +314,52 @@ abstract class Manager extends Component
      * returned if there is no item assigned to the user.
      */
     abstract public function getAssignments($userId);
+
+    /**
+     * Removes the specified rule.
+     * @param string $name the name of the rule to be removed
+     * @return boolean whether the rule exists in the storage and has been removed
+     */
+    abstract public function removeRule($name);
+
+    /**
+     * Saves the changes to the rule.
+     *
+     * @param Rule $rule the rule that has been changed.
+     */
+    abstract public function saveRule(Rule $rule);
+
+    /**
+     * Returns rule given its name.
+     *
+     * @param string $name name of the rule.
+     * @return Rule
+     */
+    abstract public function getRule($name);
+
+    /**
+     * Returns all rules.
+     *
+     * @return Rule[]
+     */
+    abstract public function getRules();
+
     /**
      * Saves the changes to an authorization assignment.
      * @param Assignment $assignment the assignment that has been changed.
      */
-    abstract public function saveAssignment($assignment);
+    abstract public function saveAssignment(Assignment $assignment);
+
     /**
      * Removes all authorization data.
      */
     abstract public function clearAll();
+
     /**
      * Removes all authorization assignments.
      */
     abstract public function clearAssignments();
+
     /**
      * Saves authorization data into persistent storage.
      * If any change is made to the authorization data, please make
diff --git a/framework/rbac/PhpManager.php b/framework/rbac/PhpManager.php
index b3a1b7a35c..9a9fb02d33 100644
--- a/framework/rbac/PhpManager.php
+++ b/framework/rbac/PhpManager.php
@@ -43,6 +43,7 @@ class PhpManager extends Manager
     private $_items = []; // itemName => item
     private $_children = []; // itemName, childName => child
     private $_assignments = []; // userId, itemName => assignment
+    private $_rules = []; // ruleName => rule
 
 
     /**
@@ -62,7 +63,7 @@ class PhpManager extends Manager
      * @param mixed $userId the user ID. This can be either an integer or a string representing
      * @param string $itemName the name of the operation that need access check
      * the unique identifier of a user. See [[\yii\web\User::id]].
-     * @param array $params name-value pairs that would be passed to biz rules associated
+     * @param array $params name-value pairs that would be passed to rules associated
      * with the tasks and roles assigned to the user. A param with name 'userId' is added to
      * this array, which holds the value of `$userId`.
      * @return boolean whether the operations can be performed by the user.
@@ -78,14 +79,14 @@ class PhpManager extends Manager
         if (!isset($params['userId'])) {
             $params['userId'] = $userId;
         }
-        if ($this->executeBizRule($item->bizRule, $params, $item->data)) {
+        if ($this->executeRule($item->ruleName, $params, $item->data)) {
             if (in_array($itemName, $this->defaultRoles)) {
                 return true;
             }
             if (isset($this->_assignments[$userId][$itemName])) {
                 /** @var Assignment $assignment */
                 $assignment = $this->_assignments[$userId][$itemName];
-                if ($this->executeBizRule($assignment->bizRule, $params, $assignment->data)) {
+                if ($this->executeRule($assignment->ruleName, $params, $assignment->data)) {
                     return true;
                 }
             }
@@ -181,15 +182,16 @@ class PhpManager extends Manager
 
     /**
      * Assigns an authorization item to a user.
-     * @param mixed $userId the user ID (see [[\yii\web\User::id]])
+     *
+*@param mixed $userId the user ID (see [[\yii\web\User::id]])
      * @param string $itemName the item name
-     * @param string $bizRule the business rule to be executed when [[checkAccess()]] is called
+     * @param string $ruleName the business rule to be executed when [[checkAccess()]] is called
      * for this particular authorization item.
      * @param mixed $data additional data associated with this assignment
      * @return Assignment the authorization assignment information.
      * @throws InvalidParamException if the item does not exist or if the item has already been assigned to the user
      */
-    public function assign($userId, $itemName, $bizRule = null, $data = null)
+    public function assign($userId, $itemName, $ruleName = null, $data = null)
     {
         if (!isset($this->_items[$itemName])) {
             throw new InvalidParamException("Unknown authorization item '$itemName'.");
@@ -200,7 +202,7 @@ class PhpManager extends Manager
                 'manager' => $this,
                 'userId' => $userId,
                 'itemName' => $itemName,
-                'bizRule' => $bizRule,
+                'ruleName' => $ruleName,
                 'data' => $data,
             ]);
         }
@@ -314,16 +316,17 @@ class PhpManager extends Manager
      * It has three types: operation, task and role.
      * Authorization items form a hierarchy. Higher level items inheirt permissions representing
      * by lower level items.
+     *
      * @param string $name the item name. This must be a unique identifier.
      * @param integer $type the item type (0: operation, 1: task, 2: role).
      * @param string $description description of the item
-     * @param string $bizRule business rule associated with the item. This is a piece of
+     * @param string $rule business rule associated with the item. This is a piece of
      * PHP code that will be executed when [[checkAccess()]] is called for the item.
      * @param mixed $data additional data associated with the item.
      * @return Item the authorization item
      * @throws Exception if an item with the same name already exists
      */
-    public function createItem($name, $type, $description = '', $bizRule = null, $data = null)
+    public function createItem($name, $type, $description = '', $rule = null, $data = null)
     {
         if (isset($this->_items[$name])) {
             throw new Exception('Unable to add an item whose name is the same as an existing item.');
@@ -334,7 +337,7 @@ class PhpManager extends Manager
             'name' => $name,
             'type' => $type,
             'description' => $description,
-            'bizRule' => $bizRule,
+            'ruleName' => $rule,
             'data' => $data,
         ]);
     }
@@ -377,7 +380,7 @@ class PhpManager extends Manager
      * @param string $oldName the old item name. If null, it means the item name is not changed.
      * @throws InvalidParamException if an item with the same name already taken
      */
-    public function saveItem($item, $oldName = null)
+    public function saveItem(Item $item, $oldName = null)
     {
         if ($oldName !== null && ($newName = $item->getName()) !== $oldName) { // name changed
             if (isset($this->_items[$newName])) {
@@ -410,7 +413,7 @@ class PhpManager extends Manager
      * Saves the changes to an authorization assignment.
      * @param Assignment $assignment the assignment that has been changed.
      */
-    public function saveAssignment($assignment)
+    public function saveAssignment(Assignment $assignment)
     {
     }
 
@@ -427,7 +430,7 @@ class PhpManager extends Manager
             $items[$name] = [
                 'type' => $item->type,
                 'description' => $item->description,
-                'bizRule' => $item->bizRule,
+                'ruleName' => $item->ruleName,
                 'data' => $item->data,
             ];
             if (isset($this->_children[$name])) {
@@ -443,14 +446,19 @@ class PhpManager extends Manager
                 /** @var Assignment $assignment */
                 if (isset($items[$name])) {
                     $items[$name]['assignments'][$userId] = [
-                        'bizRule' => $assignment->bizRule,
+                        'ruleName' => $assignment->ruleName,
                         'data' => $assignment->data,
                     ];
                 }
             }
         }
 
-        $this->saveToFile($items, $this->authFile);
+        $rules = [];
+        foreach ($this->_rules as $name => $rule) {
+            $rules[$name] = serialize($rule);
+        }
+
+        $this->saveToFile(['items' => $items, 'rules' => $rules], $this->authFile);
     }
 
     /**
@@ -460,37 +468,45 @@ class PhpManager extends Manager
     {
         $this->clearAll();
 
-        $items = $this->loadFromFile($this->authFile);
+        $data = $this->loadFromFile($this->authFile);
 
-        foreach ($items as $name => $item) {
-            $this->_items[$name] = new Item([
-                'manager' => $this,
-                'name' => $name,
-                'type' => $item['type'],
-                'description' => $item['description'],
-                'bizRule' => $item['bizRule'],
-                'data' => $item['data'],
-            ]);
-        }
+        if (isset($data['items'])) {
+            foreach ($data['items'] as $name => $item) {
+                $this->_items[$name] = new Item([
+                    'manager' => $this,
+                    'name' => $name,
+                    'type' => $item['type'],
+                    'description' => $item['description'],
+                    'ruleName' => $item['ruleName'],
+                    'data' => $item['data'],
+                ]);
+            }
 
-        foreach ($items as $name => $item) {
-            if (isset($item['children'])) {
-                foreach ($item['children'] as $childName) {
-                    if (isset($this->_items[$childName])) {
-                        $this->_children[$name][$childName] = $this->_items[$childName];
+            foreach ($data['items'] as $name => $item) {
+                if (isset($item['children'])) {
+                    foreach ($item['children'] as $childName) {
+                        if (isset($this->_items[$childName])) {
+                            $this->_children[$name][$childName] = $this->_items[$childName];
+                        }
+                    }
+                }
+                if (isset($item['assignments'])) {
+                    foreach ($item['assignments'] as $userId => $assignment) {
+                        $this->_assignments[$userId][$name] = new Assignment([
+                            'manager' => $this,
+                            'userId' => $userId,
+                            'itemName' => $name,
+                            'ruleName' => $assignment['ruleName'],
+                            'data' => $assignment['data'],
+                        ]);
                     }
                 }
             }
-            if (isset($item['assignments'])) {
-                foreach ($item['assignments'] as $userId => $assignment) {
-                    $this->_assignments[$userId][$name] = new Assignment([
-                        'manager' => $this,
-                        'userId' => $userId,
-                        'itemName' => $name,
-                        'bizRule' => $assignment['bizRule'],
-                        'data' => $assignment['data'],
-                    ]);
-                }
+        }
+
+        if (isset($data['rules'])) {
+            foreach ($data['rules'] as $name => $ruleData) {
+                $this->_rules[$name] = unserialize($ruleData);
             }
         }
     }
@@ -562,4 +578,56 @@ class PhpManager extends Manager
     {
         file_put_contents($file, "<?php\nreturn " . var_export($data, true) . ";\n", LOCK_EX);
     }
+
+    /**
+     * Removes the specified rule.
+     *
+     * @param string $name the name of the rule to be removed
+     * @return boolean whether the rule exists in the storage and has been removed
+     */
+    public function removeRule($name)
+    {
+        if (isset($this->_rules[$name])) {
+            unset($this->_rules[$name]);
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+
+    /**
+     * Saves the changes to the rule.
+     *
+     * @param Rule $rule the rule that has been changed.
+     */
+    public function saveRule(Rule $rule)
+    {
+        $this->_rules[$rule->name] = $rule;
+    }
+
+    /**
+     * Returns rule given its name.
+     *
+     * @param string $name name of the rule.
+     * @return Rule
+     */
+    public function getRule($name)
+    {
+        if (!isset($this->_rules[$name])) {
+            return null;
+        }
+
+        return $this->_rules[$name];
+    }
+
+    /**
+     * Returns all rules.
+     *
+     * @return Rule[]
+     */
+    public function getRules()
+    {
+        return $this->_rules;
+    }
 }
diff --git a/framework/rbac/Rule.php b/framework/rbac/Rule.php
new file mode 100644
index 0000000000..f1d3de37a2
--- /dev/null
+++ b/framework/rbac/Rule.php
@@ -0,0 +1,42 @@
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\rbac;
+
+use yii\base\Object;
+
+/**
+ * Rule
+ * @property string $name
+ */
+abstract class Rule extends Object
+{
+    public $name;
+
+    /**
+     * Constructor.
+     *
+     * @param array $name name of the rule
+     * @param array $config name-value pairs that will be used to initialize the object properties
+     */
+    public function __construct($name = null, $config = [])
+    {
+        if ($name !== null) {
+            $this->name = $name;
+        }
+        parent::__construct($config);
+    }
+
+    /**
+     * Executes the rule.
+     *
+     * @param array $params parameters passed to [[Manager::checkAccess()]].
+     * @param mixed $data additional data associated with the authorization item or assignment.
+     * @return boolean whether the rule execution returns true.
+     */
+    abstract public function execute($params, $data);
+}
diff --git a/framework/rbac/schema-mssql.sql b/framework/rbac/schema-mssql.sql
index 14d97c5b8c..6a96975e13 100644
--- a/framework/rbac/schema-mssql.sql
+++ b/framework/rbac/schema-mssql.sql
@@ -12,15 +12,24 @@
 drop table if exists [auth_assignment];
 drop table if exists [auth_item_child];
 drop table if exists [auth_item];
+drop table if exists [auth_rule];
+
+create table [auth_rule]
+(
+    [name]  varchar(64) not null,
+    [data]  text,
+    primary key ([name])
+);
 
 create table [auth_item]
 (
    [name]                 varchar(64) not null,
    [type]                 integer not null,
    [description]          text,
-   [biz_rule]              text,
+   [rule_name]            varchar(64),
    [data]                 text,
    primary key ([name]),
+   foreign key ([rule_name]) references [auth_rule] ([name]) on delete set null on update cascade,
    key [type] ([type])
 );
 
@@ -37,8 +46,9 @@ create table [auth_assignment]
 (
    [item_name]            varchar(64) not null,
    [user_id]              varchar(64) not null,
-   [biz_rule]              text,
+   [rule_name]            varchar(64),
    [data]                 text,
-   primary key ([item_name],[user_id]),
-   foreign key ([item_name]) references [auth_item] ([name]) on delete cascade on update cascade
+   primary key ([item_name], [user_id]),
+   foreign key ([item_name]) references [auth_item] ([name]) on delete cascade on update cascade,
+   foreign key ([rule_name]) references [auth_rule] ([name]) on delete set null on update cascade
 );
diff --git a/framework/rbac/schema-mysql.sql b/framework/rbac/schema-mysql.sql
index 5c91fddeaf..21c21ba719 100644
--- a/framework/rbac/schema-mysql.sql
+++ b/framework/rbac/schema-mysql.sql
@@ -12,15 +12,24 @@
 drop table if exists `auth_assignment`;
 drop table if exists `auth_item_child`;
 drop table if exists `auth_item`;
+drop table if exists `auth_rule`;
+
+create table `auth_rule`
+(
+    `name`  varchar(64) not null,
+    `data`  text,
+    primary key (`name`)
+) engine InnoDB;
 
 create table `auth_item`
 (
    `name`                 varchar(64) not null,
    `type`                 integer not null,
    `description`          text,
-   `biz_rule`              text,
+   `rule_name`            varchar(64),
    `data`                 text,
    primary key (`name`),
+   foreign key (`rule_name`) references `auth_rule` (`name`) on delete set null on update cascade,
    key `type` (`type`)
 ) engine InnoDB;
 
@@ -28,7 +37,7 @@ create table `auth_item_child`
 (
    `parent`               varchar(64) not null,
    `child`                varchar(64) not null,
-   primary key (`parent`,`child`),
+   primary key (`parent`, `child`),
    foreign key (`parent`) references `auth_item` (`name`) on delete cascade on update cascade,
    foreign key (`child`) references `auth_item` (`name`) on delete cascade on update cascade
 ) engine InnoDB;
@@ -37,8 +46,9 @@ create table `auth_assignment`
 (
    `item_name`            varchar(64) not null,
    `user_id`              varchar(64) not null,
-   `biz_rule`              text,
+   `rule_name`            varchar(64),
    `data`                 text,
-   primary key (`item_name`,`user_id`),
-   foreign key (`item_name`) references `auth_item` (`name`) on delete cascade on update cascade
-) engine InnoDB;
+   primary key (`item_name`, `user_id`),
+   foreign key (`item_name`) references `auth_item` (`name`) on delete cascade on update cascade,
+   foreign key (`rule_name`) references `auth_rule` (`name`) on delete set null on update cascade
+) engine InnoDB;
\ No newline at end of file
diff --git a/framework/rbac/schema-oci.sql b/framework/rbac/schema-oci.sql
index 195d359be5..e90936475f 100644
--- a/framework/rbac/schema-oci.sql
+++ b/framework/rbac/schema-oci.sql
@@ -12,15 +12,24 @@
 drop table if exists "auth_assignment";
 drop table if exists "auth_item_child";
 drop table if exists "auth_item";
+drop table if exists "auth_rule";
+
+create table "auth_rule"
+(
+    "name"  varchar(64) not null,
+    "data"  text,
+    primary key ("name")
+);
 
 create table "auth_item"
 (
    "name"                 varchar(64) not null,
    "type"                 integer not null,
    "description"          text,
-   "biz_rule"              text,
+   "rule_name"            varchar(64),
    "data"                 text,
    primary key ("name"),
+   foreign key ("rule_name") references "auth_rule" ("name") on delete set null on update cascade,
    key "type" ("type")
 );
 
@@ -37,8 +46,9 @@ create table "auth_assignment"
 (
    "item_name"            varchar(64) not null,
    "user_id"              varchar(64) not null,
-   "biz_rule"              text,
+   "rule_name"            varchar(64),
    "data"                 text,
    primary key ("item_name","user_id"),
-   foreign key ("item_name") references "auth_item" ("name") on delete cascade on update cascade
+   foreign key ("item_name") references "auth_item" ("name") on delete cascade on update cascade,
+   foreign key ("rule_name") references "auth_rule" ("name") on delete set null on update cascade
 );
diff --git a/framework/rbac/schema-pgsql.sql b/framework/rbac/schema-pgsql.sql
index 9b3fec984e..134e5e3cf7 100644
--- a/framework/rbac/schema-pgsql.sql
+++ b/framework/rbac/schema-pgsql.sql
@@ -12,15 +12,24 @@
 drop table if exists "auth_assignment";
 drop table if exists "auth_item_child";
 drop table if exists "auth_item";
+drop table if exists "auth_rule";
+
+create table "auth_rule"
+(
+    "name"  varchar(64) not null,
+    "data"  text,
+    primary key ("name")
+);
 
 create table "auth_item"
 (
    "name"                 varchar(64) not null,
    "type"                 integer not null,
    "description"          text,
-   "biz_rule"              text,
+   "rule_name"            varchar(64),
    "data"                 text,
-   primary key ("name")
+   primary key ("name"),
+   foreign key ("rule_name") references "auth_rule" ("name") on delete set null on update cascade
 );
 
 create index auth_item_type_idx on "auth_item" ("type");
@@ -38,8 +47,9 @@ create table "auth_assignment"
 (
    "item_name"            varchar(64) not null,
    "user_id"              varchar(64) not null,
-   "biz_rule"              text,
+   "rule_name"            varchar(64),
    "data"                 text,
    primary key ("item_name","user_id"),
-   foreign key ("item_name") references "auth_item" ("name") on delete cascade on update cascade
+   foreign key ("item_name") references "auth_item" ("name") on delete cascade on update cascade,
+   foreign key ("rule_name") references "auth_rule" ("name") on delete set null on update cascade
 );
diff --git a/framework/rbac/schema-sqlite.sql b/framework/rbac/schema-sqlite.sql
index 7aecc85b53..e90936475f 100644
--- a/framework/rbac/schema-sqlite.sql
+++ b/framework/rbac/schema-sqlite.sql
@@ -9,36 +9,46 @@
  * @since 2.0
  */
 
-drop table if exists 'auth_assignment';
-drop table if exists 'auth_item_child';
-drop table if exists 'auth_item';
+drop table if exists "auth_assignment";
+drop table if exists "auth_item_child";
+drop table if exists "auth_item";
+drop table if exists "auth_rule";
 
-create table 'auth_item'
+create table "auth_rule"
+(
+    "name"  varchar(64) not null,
+    "data"  text,
+    primary key ("name")
+);
+
+create table "auth_item"
 (
    "name"                 varchar(64) not null,
    "type"                 integer not null,
    "description"          text,
-   "biz_rule"              text,
+   "rule_name"            varchar(64),
    "data"                 text,
    primary key ("name"),
+   foreign key ("rule_name") references "auth_rule" ("name") on delete set null on update cascade,
    key "type" ("type")
 );
 
-create table 'auth_item_child'
+create table "auth_item_child"
 (
    "parent"               varchar(64) not null,
    "child"                varchar(64) not null,
    primary key ("parent","child"),
-   foreign key ("parent") references 'auth_item' ("name") on delete cascade on update cascade,
-   foreign key ("child") references 'auth_item' ("name") on delete cascade on update cascade
+   foreign key ("parent") references "auth_item" ("name") on delete cascade on update cascade,
+   foreign key ("child") references "auth_item" ("name") on delete cascade on update cascade
 );
 
-create table 'auth_assignment'
+create table "auth_assignment"
 (
    "item_name"            varchar(64) not null,
    "user_id"              varchar(64) not null,
-   "biz_rule"              text,
+   "rule_name"            varchar(64),
    "data"                 text,
    primary key ("item_name","user_id"),
-   foreign key ("item_name") references 'auth_item' ("name") on delete cascade on update cascade
+   foreign key ("item_name") references "auth_item" ("name") on delete cascade on update cascade,
+   foreign key ("rule_name") references "auth_rule" ("name") on delete set null on update cascade
 );
diff --git a/tests/unit/framework/rbac/AuthorRule.php b/tests/unit/framework/rbac/AuthorRule.php
new file mode 100644
index 0000000000..8f9feb7d1e
--- /dev/null
+++ b/tests/unit/framework/rbac/AuthorRule.php
@@ -0,0 +1,22 @@
+<?php
+namespace yiiunit\framework\rbac;
+
+use yii\rbac\Rule;
+
+/**
+ * Checks if authorID matches userID passed via params
+ */
+class AuthorRule extends Rule
+{
+    public $name = 'isAuthor';
+    public $reallyReally = false;
+
+    /**
+     * @inheritdoc
+     */
+    public function execute($params, $data)
+    {
+        return $params['authorID'] == $params['userID'];
+    }
+}
+ 
\ No newline at end of file
diff --git a/tests/unit/framework/rbac/ManagerTestCase.php b/tests/unit/framework/rbac/ManagerTestCase.php
index 41eb10e98d..0e1773a2d3 100644
--- a/tests/unit/framework/rbac/ManagerTestCase.php
+++ b/tests/unit/framework/rbac/ManagerTestCase.php
@@ -8,7 +8,7 @@ use yiiunit\TestCase;
 
 abstract class ManagerTestCase extends TestCase
 {
-    /** @var \yii\rbac\PhpManager|\yii\rbac\DbManager */
+    /** @var \yii\rbac\Manager */
     protected $auth;
 
     public function testCreateItem()
@@ -16,24 +16,24 @@ abstract class ManagerTestCase extends TestCase
         $type = Item::TYPE_TASK;
         $name = 'editUser';
         $description = 'edit a user';
-        $bizRule = 'checkUserIdentity()';
+        $ruleName = 'isAuthor';
         $data = [1, 2, 3];
-        $item = $this->auth->createItem($name, $type, $description, $bizRule, $data);
+        $item = $this->auth->createItem($name, $type, $description, $ruleName, $data);
         $this->assertTrue($item instanceof Item);
         $this->assertEquals($item->type, $type);
         $this->assertEquals($item->name, $name);
         $this->assertEquals($item->description, $description);
-        $this->assertEquals($item->bizRule, $bizRule);
+        $this->assertEquals($item->ruleName, $ruleName);
         $this->assertEquals($item->data, $data);
 
         // test shortcut
         $name2 = 'createUser';
-        $item2 = $this->auth->createRole($name2, $description, $bizRule, $data);
+        $item2 = $this->auth->createRole($name2, $description, $ruleName, $data);
         $this->assertEquals($item2->type, Item::TYPE_ROLE);
 
         // test adding an item with the same name
         $this->setExpectedException('\yii\base\Exception');
-        $this->auth->createItem($name, $type, $description, $bizRule, $data);
+        $this->auth->createItem($name, $type, $description, $ruleName, $data);
     }
 
     public function testGetItem()
@@ -102,7 +102,7 @@ abstract class ManagerTestCase extends TestCase
         $this->assertTrue($auth instanceof Assignment);
         $this->assertEquals($auth->userId, 'new user');
         $this->assertEquals($auth->itemName, 'createPost');
-        $this->assertEquals($auth->bizRule, 'rule');
+        $this->assertEquals($auth->ruleName, 'rule');
         $this->assertEquals($auth->data, 'data');
 
         $this->setExpectedException('\yii\base\Exception');
@@ -168,14 +168,64 @@ abstract class ManagerTestCase extends TestCase
         $this->auth->addItemChild('readPost', 'readPost');
     }
 
-    public function testExecuteBizRule()
+    public function testGetRule()
     {
-        $this->assertTrue($this->auth->executeBizRule(null, [], null));
-        $this->assertTrue($this->auth->executeBizRule('return 1 == true;', [], null));
-        $this->assertTrue($this->auth->executeBizRule('return $params[0] == $params[1];', [1, '1'], null));
-        if (!defined('HHVM_VERSION')) { // invalid code crashes on HHVM
-            $this->assertFalse($this->auth->executeBizRule('invalid;', [], null));
+        $rule = $this->auth->getRule('isAuthor');
+        $this->assertInstanceOf('yii\rbac\Rule', $rule);
+        $this->assertEquals('isAuthor', $rule->name);
+
+        $rule = $this->auth->getRule('nonExisting');
+        $this->assertNull($rule);
+    }
+
+    public function testSaveRule()
+    {
+        $ruleName = 'isReallyReallyAuthor';
+        $rule = new AuthorRule($ruleName, ['reallyReally' => true]);
+        $this->auth->saveRule($rule);
+
+        /** @var AuthorRule $rule */
+        $rule = $this->auth->getRule($ruleName);
+        $this->assertEquals($ruleName, $rule->name);
+        $this->assertEquals(true, $rule->reallyReally);
+
+        $rule->reallyReally = false;
+        $this->auth->saveRule($rule);
+
+        /** @var AuthorRule $rule */
+        $rule = $this->auth->getRule($ruleName);
+        $this->assertEquals(false, $rule->reallyReally);
+    }
+
+    public function testGetRules()
+    {
+        $rule = new AuthorRule('isReallyReallyAuthor', ['reallyReally' => true]);
+        $this->auth->saveRule($rule);
+
+        $rules = $this->auth->getRules();
+
+        $ruleNames = [];
+        foreach ($rules as $rule) {
+            $ruleNames[] = $rule->name;
         }
+
+        $this->assertContains('isReallyReallyAuthor', $ruleNames);
+        $this->assertContains('isAuthor', $ruleNames);
+    }
+
+    public function testRemoveRule()
+    {
+        $this->auth->removeRule('isAuthor');
+        $rules = $this->auth->getRules();
+
+        $this->assertEmpty($rules);
+    }
+
+    public function testExecuteRule()
+    {
+        $this->assertTrue($this->auth->executeRule(null, [], null));
+        $this->assertTrue($this->auth->executeRule('isAuthor', ['userID' => 1, 'authorID' => 1], null));
+        $this->assertFalse($this->auth->executeRule('isAuthor', ['userID' => 1, 'authorID' => 2], null));
     }
 
     public function testCheckAccess()
@@ -231,12 +281,14 @@ abstract class ManagerTestCase extends TestCase
 
     protected function prepareData()
     {
+        $this->auth->saveRule(new AuthorRule());
+
         $this->auth->createOperation('createPost', 'create a post');
         $this->auth->createOperation('readPost', 'read a post');
         $this->auth->createOperation('updatePost', 'update a post');
         $this->auth->createOperation('deletePost', 'delete a post');
 
-        $task = $this->auth->createTask('updateOwnPost', 'update a post by author himself', 'return $params["authorID"] == $params["userID"];');
+        $task = $this->auth->createTask('updateOwnPost', 'update a post by author himself', 'isAuthor');
         $task->addChild('updatePost');
 
         $role = $this->auth->createRole('reader');
diff --git a/tests/unit/framework/rbac/PhpManagerTest.php b/tests/unit/framework/rbac/PhpManagerTest.php
index 7e5927a497..1dee48ef61 100644
--- a/tests/unit/framework/rbac/PhpManagerTest.php
+++ b/tests/unit/framework/rbac/PhpManagerTest.php
@@ -7,6 +7,7 @@ use yii\rbac\PhpManager;
 
 /**
  * @group rbac
+ * @property \yii\rbac\PhpManager $auth
  */
 class PhpManagerTest extends ManagerTestCase
 {