diff --git a/Basis/Manager.py b/Utils/Manager.py
similarity index 67%
rename from Basis/Manager.py
rename to Utils/Manager.py
index 5ed3502..528bcc7 100644
--- a/Basis/Manager.py
+++ b/Utils/Manager.py
@@ -2,21 +2,26 @@
 # -*- coding: utf-8 -*-
 
 import copy
-from Basis.Logger import logging
-from Basis.Functions import genFlag
-from Basis.Exception import managerException
+from enum import Enum
+from Utils.Logger import logger
+from Utils.Common import genFlag
+from Utils.Exception import managerException
+
+
+class TASK(Enum):  # task status
+    LOADED = -1
+    RUNNING = 0
+    FINISH = 1
+
 
 class Task(object):
     """ Manage global check task.
     """
     __tasks = {}  # task status -> loaded / running / complete
     __unions = {}  # one union include multi tasks
-    __TASK_LOADED = -1
-    __TASK_RUNNING = 0
-    __TASK_FINISH = 1
 
     def __init__(self):
-        logging.info('Manager start')
+        logger.info('Manager start')
 
     def listUnion(self) -> list:  # get all union ids
         return [x for x in self.__unions]
@@ -28,26 +33,26 @@ class Task(object):
         tasks = {}  # temporary task storage
         taskIds = []  # task id list for manage union
         unionId = genFlag(length = 12)  # generate union id (12 bytes)
-        logging.debug('Manager start to load union [%s]' % unionId)
+        logger.debug('Manager start to load union [%s]' % unionId)
         for task in union:
             taskId = genFlag(length = 16)  # generate task id (16 bytes)
             taskIds.append(taskId)
             tasks[taskId] = {
-                'status': self.__TASK_LOADED,  # task status -> loaded
+                'status': TASK.LOADED,  # task status -> loaded
                 'data': copy.deepcopy(task)  # save task info
             }
-            logging.info('Manager add task [%s] -> %s' % (taskId, task))
+            logger.info('Manager add task [%s] -> %s' % (taskId, task))
         self.__tasks.update(tasks)  # load into task list
         self.__unions[unionId] = {
             'finish': False,
             'items': taskIds  # record task items
         }
-        logging.info('Manager add union [%s] -> %s' % (unionId, taskIds))
+        logger.info('Manager add union [%s] -> %s' % (unionId, taskIds))
         return unionId
 
     def delUnion(self, unionId) -> None:  # remove union
         if unionId not in self.__unions:
-            logging.error('Manager union [%s] not found' % unionId)
+            logger.error('Manager union [%s] not found' % unionId)
             raise managerException('Union id not found')
         if not self.__unions[unionId]['finish']:  # some tasks are still running
             raise managerException('Couldn\'t remove working union')
@@ -55,18 +60,18 @@ class Task(object):
 
     def getUnion(self, unionId: str) -> dict:  # get union status (remove tasks when all completed)
         if unionId not in self.__unions:
-            logging.error('Manager union [%s] not found' % unionId)
+            logger.error('Manager union [%s] not found' % unionId)
             raise managerException('Union id not found')
         if self.__unions[unionId]['finish']:  # all tasks are finished
             return self.__unions[unionId]
         tasks = self.__unions[unionId]['items']
         finishNum = 0
         for taskId in tasks:
-            if self.__tasks[taskId]['status'] == self.__TASK_FINISH:  # get number of completed task
+            if self.__tasks[taskId]['status'] == TASK.FINISH:  # get number of completed task
                 finishNum += 1
-        logging.info('Manager statistics union [%s] -> %i/%i' % (unionId, finishNum, len(tasks)))
+        logger.info('Manager statistics union [%s] -> %i/%i' % (unionId, finishNum, len(tasks)))
         if finishNum < len(tasks):  # some tasks are not yet completed
-            logging.debug('Manager union [%s] still working' % unionId)
+            logger.debug('Manager union [%s] still working' % unionId)
             return {
                 'finish': False,
                 'percent': round(finishNum / len(tasks), 2)
@@ -78,24 +83,24 @@ class Task(object):
             self.__unions[unionId]['result'].append(task['data'])
         self.__unions[unionId]['finish'] = True
         self.__unions[unionId].pop('items')
-        logging.info('Manager release union [%s] -> %s' % (unionId, self.__unions[unionId]['result']))
+        logger.info('Manager release union [%s] -> %s' % (unionId, self.__unions[unionId]['result']))
         return self.__unions[unionId]
 
     def popTask(self) -> tuple[str or None, any]:  # fetch a loaded task
         for taskId, task in self.__tasks.items():
-            if task['status'] != self.__TASK_LOADED: continue  # only get loaded task
-            task['status'] = self.__TASK_RUNNING  # set task status as running
-            logging.info('Manager pop task [%s] -> %s' % (taskId, task['data']))
+            if task['status'] != TASK.LOADED: continue  # only get loaded task
+            task['status'] = TASK.RUNNING  # set task status as running
+            logger.info('Manager pop task [%s] -> %s' % (taskId, task['data']))
             return taskId, copy.deepcopy(task['data'])
-        logging.debug('Manager has no more task')
+        logger.debug('Manager has no more task')
         raise managerException('No more tasks')
 
     def finishTask(self, taskId: str, taskData: dict) -> None:  # update task data when completed
         if taskId not in self.__tasks:
-            logging.error('Manager task [%s] not found' % taskId)
+            logger.error('Manager task [%s] not found' % taskId)
             raise managerException('Task id not found')
         self.__tasks[taskId]['data'] = copy.deepcopy(taskData)
-        self.__tasks[taskId]['status'] = self.__TASK_FINISH  # set task status as completed
+        self.__tasks[taskId]['status'] = TASK.FINISH  # set task status as completed
 
 
 Manager = Task()  # global task manager