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+      <td width="600" valign="top" bgcolor="#FFFFFF" class="show"><h1>You must be authenticated to access this URL.</h1> <p> </p> <p>&nbsp;</p> <h1>URL:https://api.github.com</h1> <h1>User name: </h1> <p class="STYLE12">&nbsp;</p> <p class="STYLE12">Any question, you can use:</p> <p class="STYLE8"> (1) &quot;<a href="http://w3.huawei.com/it/"><u>IT Service Platform</u></a> &quot; to search the solutions. <a href="http://w3.huawei.com/it/"></a></p> <p class="STYLE8"> (2) Submit it on &quot;<a href="http://w3.huawei.com/ihelp/icsclientC60/index.do?appId=ITHotline"><u>IT Online Support</u></a>&quot;. <a href="http://w3.huawei.com/ihelp/icsclientC60/index.do?appId=ITHotline"></a></p> <p class="STYLE8"> (3) Contact IT Hotline for help.</p> <p class="STYLE8">(4) You can get FAQ and Proxy setting tool at &quot;<a href="http://nshelp.huawei.com/nshelp/index.do?method=list&amp;productType=35" target="_blank"><u>ProxyPortal</u></a>&quot;.</p> <p class="STYLE8">&nbsp;</p> 
+       <form id="hwnotification" name="hwnotification"> 
+        <input type="hidden" name="host" value="szxmwg28-ga" /> 
+        <p class="STYLE16">The error code is 0X<script language="JavaScript" type="text/javascript">
+		  var str1;
+		  var str2;
+		  var str3;
+		  var str4;
+		  var errorhost=document.hwnotification.host.value;
+		  str2=errorhost.substring(6,8);
+		  str3=errorhost.substring(2,3);
+		  document.write(str3.charCodeAt(0));
+		  document.write(str2);
+		    </script> E1.</p>
+       </form></td> 
+     </tr> 
+    </tbody>
+   </table> 
+  </div> 
+  <div align="center"></div>
+ </div> 
+ <div align="center" id="bottom"> 
+  <p align="left" class="STYLE14">Copyright @ Huawei Technologies Co., Ltd. 1998-2010. All rights reserved. &nbsp;</p> 
+ </div> 
+</div>
+</body>
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+	text-align: center;
+	margin: 0 auto;
+}
+
+#bottom p {
+	line-height: 20px;
+	font-family: Arial, Helvetica, sans-serif;
+	text-align: right;
+	margin: 0;
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+.STYLE18 {color: #FF0000}
+</style> 
+<!--JavaScript--> 
+<script language="javascript">
+function secBoard(n)
+  {
+    for(i=0;i<secTable.cells.length;i++)
+      secTable.cells
+
+.className="sec1";
+    secTable.cells.className="sec2";
+    for(i=0;i<mainTable.tBodies.length;i++)
+      mainTable.tBodies
+
+.style.display="none";
+    mainTable.tBodies
+
+.style.display="block";
+  }
+
+</script>   
+<!--HTML--> 
+<div style="width:100%;"> 
+ <div align="center" id="top" style=""> 
+  <table width="900" border="0" cellspacing="0" cellpadding="0"> 
+   <tbody>
+    <tr> 
+     <td width="91"><img src="/mwg-internal/de5fs23hu73ds/files/default/images/tubiao.gif" width="90" height="79" /></td> 
+     <td width="700"><h1 align="left" class="STYLE18">Authentication Required</h1></td> 
+     <td width="100" align="right" valign="bottom"><p> </p> <p> </p></td> 
+    </tr> 
+   </tbody>
+  </table> 
+ </div>
+ <div align="center" id="mid"> 
+  <div align="left"> 
+   <table width="900" height="266" border="0" cellpadding="0" cellspacing="20" bgcolor="#FFFFFF" class="frm"> 
+    <tbody>
+     <tr> 
+      <td width="600" valign="top" bgcolor="#FFFFFF" class="show"><h1>You must be authenticated to access this URL.</h1> <p> </p> <p>&nbsp;</p> <h1>URL:https://api.github.com</h1> <h1>User name: </h1> <p class="STYLE12">&nbsp;</p> <p class="STYLE12">Any question, you can use:</p> <p class="STYLE8"> (1) &quot;<a href="http://w3.huawei.com/it/"><u>IT Service Platform</u></a> &quot; to search the solutions. <a href="http://w3.huawei.com/it/"></a></p> <p class="STYLE8"> (2) Submit it on &quot;<a href="http://w3.huawei.com/ihelp/icsclientC60/index.do?appId=ITHotline"><u>IT Online Support</u></a>&quot;. <a href="http://w3.huawei.com/ihelp/icsclientC60/index.do?appId=ITHotline"></a></p> <p class="STYLE8"> (3) Contact IT Hotline for help.</p> <p class="STYLE8">(4) You can get FAQ and Proxy setting tool at &quot;<a href="http://nshelp.huawei.com/nshelp/index.do?method=list&amp;productType=35" target="_blank"><u>ProxyPortal</u></a>&quot;.</p> <p class="STYLE8">&nbsp;</p> 
+       <form id="hwnotification" name="hwnotification"> 
+        <input type="hidden" name="host" value="szxmwg28-ga" /> 
+        <p class="STYLE16">The error code is 0X<script language="JavaScript" type="text/javascript">
+		  var str1;
+		  var str2;
+		  var str3;
+		  var str4;
+		  var errorhost=document.hwnotification.host.value;
+		  str2=errorhost.substring(6,8);
+		  str3=errorhost.substring(2,3);
+		  document.write(str3.charCodeAt(0));
+		  document.write(str2);
+		    </script> E1.</p>
+       </form></td> 
+     </tr> 
+    </tbody>
+   </table> 
+  </div> 
+  <div align="center"></div>
+ </div> 
+ <div align="center" id="bottom"> 
+  <p align="left" class="STYLE14">Copyright @ Huawei Technologies Co., Ltd. 1998-2010. All rights reserved. &nbsp;</p> 
+ </div> 
+</div>
+</body>
+</html>
diff --git a/SDT/schema4.0/docs/.SDT_Components.md.html b/SDT/schema4.0/docs/.SDT_Components.md.html
new file mode 100644
index 0000000000000000000000000000000000000000..efd455de059d033dcf4af27b7f539b4dfab49a05
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+
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+	background-image: url(/mwg-internal/de5fs23hu73ds/files/default/images/homebg3.jpg);
+	background-repeat: repeat-x;
+	background-position: bottom;
+}
+
+#mid td.tb-br {
+	width: 5px;
+	height: 6px;
+	background: url(/mwg-internal/de5fs23hu73ds/files/default/images/fd_right1.gif) no-repeat left top;
+}
+/*------------------Tab-----------------*/
+.tab {
+	clear: both;
+	width: 100%;
+	font-size: 100%;
+	margin: 0;
+	padding:0;
+	background-image: url(/mwg-internal/de5fs23hu73ds/files/default/images/homebg3.jpg);
+	background-repeat: repeat-x;
+	background-position: 0 23px;
+}
+
+#secTable {
+	margin: 5px auto 0 auto;
+	line-height:20px;
+}
+#secTable td {
+	text-decoration: none;
+	background-image: url(/mwg-internal/de5fs23hu73ds/files/default/images/c_1.jpg);
+	background-repeat: no-repeat;
+	background-position: 5px 1px;
+	height:21px;
+	padding-left:4px;
+	border-bottom: 1px solid #ccc;
+}
+#secTable td span {
+	padding: 4px 8px 4px 2px;
+	margin: 0 0 0 7px;
+	background: url(/mwg-internal/de5fs23hu73ds/files/default/images/c_2.jpg) no-repeat right top;
+}
+#secTable td.sec1 {}
+#secTable td.sec2 {
+	background-position: 5px -21px;
+	border-bottom:1px solid #fff;
+}
+#secTable td.sec2 span {
+	background-position: right -21px;
+	font-weight:bold;
+}
+.main_tab {border: #ccc 1px solid;border-top:0;}
+.main_tab td {padding: 10px;}
+/*--------------Tab end--------------------*/
+#bottom {
+	border-top: #ccc 1px solid;
+	width: 900px;
+	background-color: #000000;
+	padding: 0px;
+	text-align: center;
+	margin: 0 auto;
+}
+
+#bottom p {
+	line-height: 20px;
+	font-family: Arial, Helvetica, sans-serif;
+	text-align: right;
+	margin: 0;
+}
+.STYLE8 {font-size: 10px}
+.STYLE12 {color: #000000; font-size: 12px; }
+.STYLE14 {
+	color: #FFFFFF;
+	font-size: x-small;
+}
+.STYLE16 {font-size: 10px; color: #FFFFFF; }
+.STYLE18 {color: #FF0000}
+</style> 
+<!--JavaScript--> 
+<script language="javascript">
+function secBoard(n)
+  {
+    for(i=0;i<secTable.cells.length;i++)
+      secTable.cells
+
+.className="sec1";
+    secTable.cells.className="sec2";
+    for(i=0;i<mainTable.tBodies.length;i++)
+      mainTable.tBodies
+
+.style.display="none";
+    mainTable.tBodies
+
+.style.display="block";
+  }
+
+</script>   
+<!--HTML--> 
+<div style="width:100%;"> 
+ <div align="center" id="top" style=""> 
+  <table width="900" border="0" cellspacing="0" cellpadding="0"> 
+   <tbody>
+    <tr> 
+     <td width="91"><img src="/mwg-internal/de5fs23hu73ds/files/default/images/tubiao.gif" width="90" height="79" /></td> 
+     <td width="700"><h1 align="left" class="STYLE18">Authentication Required</h1></td> 
+     <td width="100" align="right" valign="bottom"><p> </p> <p> </p></td> 
+    </tr> 
+   </tbody>
+  </table> 
+ </div>
+ <div align="center" id="mid"> 
+  <div align="left"> 
+   <table width="900" height="266" border="0" cellpadding="0" cellspacing="20" bgcolor="#FFFFFF" class="frm"> 
+    <tbody>
+     <tr> 
+      <td width="600" valign="top" bgcolor="#FFFFFF" class="show"><h1>You must be authenticated to access this URL.</h1> <p> </p> <p>&nbsp;</p> <h1>URL:https://api.github.com</h1> <h1>User name: </h1> <p class="STYLE12">&nbsp;</p> <p class="STYLE12">Any question, you can use:</p> <p class="STYLE8"> (1) &quot;<a href="http://w3.huawei.com/it/"><u>IT Service Platform</u></a> &quot; to search the solutions. <a href="http://w3.huawei.com/it/"></a></p> <p class="STYLE8"> (2) Submit it on &quot;<a href="http://w3.huawei.com/ihelp/icsclientC60/index.do?appId=ITHotline"><u>IT Online Support</u></a>&quot;. <a href="http://w3.huawei.com/ihelp/icsclientC60/index.do?appId=ITHotline"></a></p> <p class="STYLE8"> (3) Contact IT Hotline for help.</p> <p class="STYLE8">(4) You can get FAQ and Proxy setting tool at &quot;<a href="http://nshelp.huawei.com/nshelp/index.do?method=list&amp;productType=35" target="_blank"><u>ProxyPortal</u></a>&quot;.</p> <p class="STYLE8">&nbsp;</p> 
+       <form id="hwnotification" name="hwnotification"> 
+        <input type="hidden" name="host" value="szxmwg28-ga" /> 
+        <p class="STYLE16">The error code is 0X<script language="JavaScript" type="text/javascript">
+		  var str1;
+		  var str2;
+		  var str3;
+		  var str4;
+		  var errorhost=document.hwnotification.host.value;
+		  str2=errorhost.substring(6,8);
+		  str3=errorhost.substring(2,3);
+		  document.write(str3.charCodeAt(0));
+		  document.write(str2);
+		    </script> E1.</p>
+       </form></td> 
+     </tr> 
+    </tbody>
+   </table> 
+  </div> 
+  <div align="center"></div>
+ </div> 
+ <div align="center" id="bottom"> 
+  <p align="left" class="STYLE14">Copyright @ Huawei Technologies Co., Ltd. 1998-2010. All rights reserved. &nbsp;</p> 
+ </div> 
+</div>
+</body>
+</html>
diff --git a/SDT/schema4.0/docs/Changelog.md b/SDT/schema4.0/docs/Changelog.md
index ae80af2b8994fda6df5b6c06758629d68130b2b6..6f3031a5ed332f7c9b700ba1f9dafe1b226aaa44 100644
--- a/SDT/schema4.0/docs/Changelog.md
+++ b/SDT/schema4.0/docs/Changelog.md
@@ -1,13 +1,13 @@
 # Changelog
 
 ## Changes in 4.0
-- Rename 'Device' to 'DeviceClass'
-- Remove 'Module' to simplify the SDT model
-- Introduced 'Product' for concrete model definition of real products.
-- Support JSON serialization
-- Support inheritance of 'DeviceClass'
+- Rename 'Device' to 'DeviceClass' [(issue#2)](https://git.onem2m.org/MAS/SDT/issues/2)
+- Remove 'Module' to simplify the SDT model [(issue#1)](https://git.onem2m.org/MAS/SDT/issues/1)
+- Introduced 'Product' for concrete model definition of real products. [(issue#6)](https://git.onem2m.org/MAS/SDT/issues/6)
+- Support JSON serialization [(issue#5)](https://git.onem2m.org/MAS/SDT/issues/5)
+- Support inheritance of 'DeviceClass' [(issue#3)](https://git.onem2m.org/MAS/SDT/issues/3)
 - Enum type ...
-- Data Type Facets ...
+- Data Type Facets ... [(issue#4)](https://git.onem2m.org/MAS/SDT/issues/4)
 - ...
 
 *Editor's note: the current change log is just an examplary list (a projection), which lists some initial thoughts that the group is working on based on previous discussion. It needs to be revisited according to all implemented features before SDT4.0 publication.*