diff --git a/dashboard/users/migrations/0002_auto_20160810_1516.py b/dashboard/users/migrations/0002_auto_20160810_1516.py
new file mode 100644
index 000000000..43a37c0f6
--- /dev/null
+++ b/dashboard/users/migrations/0002_auto_20160810_1516.py
@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10 on 2016-08-10 07:16
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('users', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='user',
+            options={},
+        ),
+        migrations.AlterModelTable(
+            name='user',
+            table='user',
+        ),
+    ]
diff --git a/docs/table_design.xml b/docs/table_design.xml
new file mode 100644
index 000000000..e62653805
--- /dev/null
+++ b/docs/table_design.xml
@@ -0,0 +1,444 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!-- SQL XML created by WWW SQL Designer, https://github.com/ondras/wwwsqldesigner/ -->
+<!-- Active URL: http://ondras.zarovi.cz/sql/demo/?keyword=default -->
+<sql>
+<datatypes db="mysql">
+	<group color="rgb(238,238,170)" label="Numeric">
+		<type label="Integer" quote="" sql="INTEGER" length="0"/>
+	 	<type label="TINYINT" quote="" sql="TINYINT" length="0"/>
+	 	<type label="SMALLINT" quote="" sql="SMALLINT" length="0"/>
+	 	<type label="MEDIUMINT" quote="" sql="MEDIUMINT" length="0"/>
+	 	<type label="INT" quote="" sql="INT" length="0"/>
+		<type label="BIGINT" quote="" sql="BIGINT" length="0"/>
+		<type label="Decimal" quote="" sql="DECIMAL" length="1" re="DEC"/>
+		<type label="Single precision" quote="" sql="FLOAT" length="0"/>
+		<type label="Double precision" quote="" sql="DOUBLE" length="0" re="DOUBLE"/>
+	</group>
+
+	<group color="rgb(255,200,200)" label="Character">
+		<type label="Char" quote="'" sql="CHAR" length="1"/>
+		<type label="Varchar" quote="'" sql="VARCHAR" length="1"/>
+		<type label="Text" quote="'" sql="MEDIUMTEXT" length="0" re="TEXT"/>
+		<type label="Binary" quote="'" sql="BINARY" length="1"/>
+		<type label="Varbinary" quote="'" sql="VARBINARY" length="1"/>
+		<type label="BLOB" quote="'" sql="BLOB" length="0" re="BLOB"/>
+	</group>
+
+	<group color="rgb(200,255,200)" label="Date &amp; Time">
+		<type label="Date" quote="'" sql="DATE" length="0"/>
+		<type label="Time" quote="'" sql="TIME" length="0"/>
+		<type label="Datetime" quote="'" sql="DATETIME" length="0"/>
+		<type label="Year" quote="" sql="YEAR" length="0"/>
+		<type label="Timestamp" quote="'" sql="TIMESTAMP" length="0"/>
+	</group>
+
+	<group color="rgb(200,200,255)" label="Miscellaneous">
+		<type label="ENUM" quote="" sql="ENUM" length="1"/>
+		<type label="SET" quote="" sql="SET" length="1"/>
+		<type label="Bit" quote="" sql="bit" length="0"/>
+	</group>
+</datatypes><table x="397" y="254" name="user">
+<row name="id" null="1" autoincrement="1">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="username" null="0" autoincrement="0">
+<datatype>VARCHAR(20)</datatype>
+<default>'NULL'</default></row>
+<row name="first_name" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="last_name" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="password" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="email" null="0" autoincrement="0">
+<datatype>VARCHAR(30)</datatype>
+</row>
+<row name="avatar" null="1" autoincrement="0">
+<datatype>BINARY</datatype>
+<default>NULL</default></row>
+<row name="wechat" null="1" autoincrement="0">
+<datatype>VARCHAR(20)</datatype>
+<default>NULL</default></row>
+<row name="phone" null="1" autoincrement="0">
+<datatype>VARBINARY</datatype>
+<default>NULL</default></row>
+<row name="is_staff" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>0</default></row>
+<row name="is_active" null="0" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>0</default></row>
+<row name="two_factor_auth" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>0</default></row>
+<row name="role" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>NULL</default><relation table="role" row="id" />
+</row>
+<row name="created_by" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="private_key" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="public_key" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="date_joined" null="1" autoincrement="0">
+<datatype>DATETIME</datatype>
+<default>'now()'</default></row>
+<row name="date_expaired" null="1" autoincrement="0">
+<datatype>DATETIME</datatype>
+<default>NULL</default></row>
+<row name="last_login" null="1" autoincrement="0">
+<datatype>DATETIME</datatype>
+<default>NULL</default></row>
+<key type="PRIMARY" name="">
+<part>id</part>
+</key>
+</table>
+<table x="199" y="429" name="role">
+<row name="id" null="1" autoincrement="1">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="name" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="comment" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<key type="PRIMARY" name="">
+<part>id</part>
+</key>
+</table>
+<table x="400" y="98" name="usergroup">
+<row name="id" null="1" autoincrement="1">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="name" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="comment" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="date_added" null="1" autoincrement="0">
+<datatype>DATETIME</datatype>
+<default>NULL</default></row>
+<key type="PRIMARY" name="">
+<part>id</part>
+</key>
+</table>
+<table x="179" y="107" name="user_usergroup">
+<row name="id" null="1" autoincrement="1">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="usergroup_id" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>NULL</default><relation table="usergroup" row="id" />
+</row>
+<row name="user_id" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>NULL</default><relation table="user" row="id" />
+</row>
+<key type="PRIMARY" name="">
+<part>id</part>
+</key>
+</table>
+<table x="199" y="586" name="permission">
+<row name="id" null="1" autoincrement="1">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="name" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="codename" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="content_type" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>NULL</default><relation table="cententtype" row="id" />
+</row>
+<key type="PRIMARY" name="">
+<part>id</part>
+</key>
+</table>
+<table x="13" y="587" name="cententtype">
+<row name="id" null="1" autoincrement="1">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="app_label" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="model" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<key type="PRIMARY" name="">
+<part>id</part>
+</key>
+</table>
+<table x="12" y="428" name="role_permission">
+<row name="id" null="1" autoincrement="1">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="role_id" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>NULL</default><relation table="role" row="id" />
+</row>
+<row name="permmision_id" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>NULL</default><relation table="permission" row="id" />
+</row>
+<key type="PRIMARY" name="">
+<part>id</part>
+</key>
+</table>
+<table x="920" y="247" name="asset">
+<row name="id" null="1" autoincrement="1">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="hostname" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="ip" null="1" autoincrement="0">
+<datatype>CHAR</datatype>
+<default>NULL</default></row>
+<row name="port" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="other_ip" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="mac_addr" null="1" autoincrement="0">
+<datatype>VARBINARY</datatype>
+<default>NULL</default></row>
+<row name="username" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="password" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="idc" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="remote_card_ip" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="type" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>NULL</default><relation table="asset待定" row="id" />
+</row>
+<row name="brand" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="os" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="sn" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="number" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="cabinet_no" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="cabinet_pos" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="env" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>NULL</default><relation table="asset待定" row="id" />
+</row>
+<row name="cpu" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="memory" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="disk" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="created_by" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="date_added" null="1" autoincrement="0">
+<datatype>DATETIME</datatype>
+<default>NULL</default></row>
+<row name="admin_user" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>NULL</default><relation table="adminuser" row="id" />
+</row>
+<key type="PRIMARY" name="">
+<part>id</part>
+</key>
+</table>
+<table x="1139" y="397" name="asset待定">
+<row name="id" null="1" autoincrement="1">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="key" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="value" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<key type="PRIMARY" name="">
+<part>id</part>
+</key>
+</table>
+<table x="1142" y="543" name="idc">
+<row name="id" null="1" autoincrement="1">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="name" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="address" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="operator" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="contact" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="phone" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="network" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="brandwidth" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="comment" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="date_added" null="1" autoincrement="0">
+<datatype>DATETIME</datatype>
+<default>NULL</default></row>
+<key type="PRIMARY" name="">
+<part>id</part>
+</key>
+</table>
+<table x="1142" y="220" name="asset_label">
+<row name="id" null="1" autoincrement="1">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="asset_id" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>NULL</default><relation table="asset" row="id" />
+</row>
+<row name="key" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default><relation table="asset待定" row="id" />
+</row>
+<row name="value" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<key type="PRIMARY" name="">
+<part>id</part>
+</key>
+</table>
+<table x="923" y="99" name="assetgroup">
+<row name="id" null="1" autoincrement="1">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="name" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="comment" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="date_added" null="1" autoincrement="0">
+<datatype>DATETIME</datatype>
+<default>NULL</default></row>
+<key type="PRIMARY" name="">
+<part>id</part>
+</key>
+</table>
+<table x="1140" y="95" name="asset_assetgroup">
+<row name="id" null="1" autoincrement="1">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="assetgroup_id" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>NULL</default><relation table="assetgroup" row="id" />
+</row>
+<row name="asset_id" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>NULL</default><relation table="asset" row="id" />
+</row>
+<key type="PRIMARY" name="">
+<part>id</part>
+</key>
+</table>
+<table x="728" y="630" name="adminuser">
+<row name="id" null="1" autoincrement="1">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="name" null="1" autoincrement="0">
+<datatype>CHAR</datatype>
+<default>NULL</default></row>
+<row name="username" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="password" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="private_key" null="1" autoincrement="0">
+<datatype>VARCHAR</datatype>
+<default>NULL</default></row>
+<row name="is_default" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="auto_update" null="1" autoincrement="0">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="date_added" null="1" autoincrement="0">
+<datatype>DATETIME</datatype>
+<default>NULL</default></row>
+<row name="create_by" null="1" autoincrement="0">
+<datatype>CHAR</datatype>
+<default>NULL</default></row>
+<row name="comment" null="1" autoincrement="0">
+<datatype>CHAR</datatype>
+<default>NULL</default></row>
+<key type="PRIMARY" name="">
+<part>id</part>
+</key>
+</table>
+<table x="739" y="38" name="sysuser">
+<row name="id" null="1" autoincrement="1">
+<datatype>INTEGER</datatype>
+<default>NULL</default></row>
+<row name="name" null="1" autoincrement="0">
+<datatype>CHAR</datatype>
+<default>NULL</default></row>
+<row name="username" null="1" autoincrement="0">
+<datatype>CHAR</datatype>
+<default>NULL</default></row>
+<row name="password" null="1" autoincrement="0">
+<datatype>CHAR</datatype>
+<default>NULL</default></row>
+<row name="private_key" null="1" autoincrement="0">
+<datatype>CHAR</datatype>
+<default>NULL</default></row>
+<row name="public_key" null="1" autoincrement="0">
+<datatype>CHAR</datatype>
+<default>NULL</default></row>
+<row name="date_added" null="1" autoincrement="0">
+<datatype>DATETIME</datatype>
+<default>NULL</default></row>
+<row name="created_by" null="1" autoincrement="0">
+<datatype>CHAR</datatype>
+<default>NULL</default></row>
+<key type="PRIMARY" name="">
+<part>id</part>
+</key>
+</table>
+</sql>
+