diff --git a/misc/config_tools/schema/VMtypes.xsd b/misc/config_tools/schema/VMtypes.xsd
index f5ffc55d6..bd803bd2b 100644
--- a/misc/config_tools/schema/VMtypes.xsd
+++ b/misc/config_tools/schema/VMtypes.xsd
@@ -7,8 +7,8 @@
   <xs:annotation>
     <xs:documentation>Current supported VM types are:
 
-- ``PRE_LAUNCHED_VM`` pre-launched VM
 - ``SERVICE_VM`` Service VM
+- ``PRE_LAUNCHED_VM`` pre-launched VM
 - ``POST_LAUNCHED_VM`` post-launched VM</xs:documentation>
   </xs:annotation>
   <xs:restriction base="xs:string">
@@ -46,8 +46,7 @@
   <xs:sequence>
     <xs:element name="pcpu_id" type="xs:integer" default="2" minOccurs="0" maxOccurs="unbounded">
       <xs:annotation>
-        <xs:documentation>A pCPU that this VM's vCPU is allowed to pin
-to.</xs:documentation>
+        <xs:documentation>A pCPU that this VM's vCPU is allowed to pin to.</xs:documentation>
       </xs:annotation>
     </xs:element>
   </xs:sequence>
@@ -180,7 +179,7 @@ CLOSID 0 and the second is mapped to virtual CLOSID 1, etc.</xs:documentation>
 
 <xs:simpleType name="VuartType">
   <xs:annotation>
-    <xs:documentation>vCOM type</xs:documentation>
+    <xs:documentation>A string with value: ``legacy`` or ``pci``.</xs:documentation>
   </xs:annotation>
   <xs:restriction base="xs:string">
     <xs:enumeration value="legacy">
@@ -214,7 +213,11 @@ CLOSID 0 and the second is mapped to virtual CLOSID 1, etc.</xs:documentation>
 
 <xs:complexType name="VuartConnectionType">
   <xs:sequence>
-    <xs:element name="name" type="xs:string" />
+      <xs:element name="name" type="xs:string">
+          <xs:annotation>
+        <xs:documentation>Specify the vUART name.</xs:documentation>
+      </xs:annotation>
+    </xs:element>
     <xs:element name="type" type="VuartType" default="legacy">
       <xs:annotation acrn:title="Type">
         <xs:documentation>Select the communication virtual UART (vUART) type.</xs:documentation>
@@ -257,6 +260,9 @@ CLOSID 0 and the second is mapped to virtual CLOSID 1, etc.</xs:documentation>
 </xs:complexType>
 
 <xs:simpleType name="VirtioNetworkFrameworkType">
+  <xs:annotation>
+       <xs:documentation>A string with value: ``Kernel based (Virtual Host)`` or ``User space based (VBSU)``.</xs:documentation>
+  </xs:annotation>
   <xs:restriction base="xs:string">
     <xs:enumeration value="Kernel based (Virtual Host)" />
     <xs:enumeration value="User space based (VBSU)" />
@@ -275,6 +281,9 @@ CLOSID 0 and the second is mapped to virtual CLOSID 1, etc.</xs:documentation>
         <xs:documentation>Specify the network interface name that will appear in the Service VM. Use the `ip a` command in the Service VM to display the network interface names.</xs:documentation>
       </xs:annotation>
       <xs:simpleType>
+  <xs:annotation>
+       <xs:documentation>A string of letters, digits, ``_``, or ``-``.</xs:documentation>
+  </xs:annotation>
         <xs:restriction base="xs:string">
           <xs:pattern value="[a-zA-Z0-9_\-]+" />
         </xs:restriction>
@@ -284,6 +293,9 @@ CLOSID 0 and the second is mapped to virtual CLOSID 1, etc.</xs:documentation>
 </xs:complexType>
 
 <xs:simpleType name="VirtioConsoleUseType">
+  <xs:annotation>
+       <xs:documentation>A string with value: ``Virtio console`` or ``Virtio serial port``</xs:documentation>
+  </xs:annotation>
   <xs:restriction base="xs:string">
     <xs:enumeration value="Virtio console" />
     <xs:enumeration value="Virtio serial port" />
@@ -291,6 +303,9 @@ CLOSID 0 and the second is mapped to virtual CLOSID 1, etc.</xs:documentation>
 </xs:simpleType>
 
 <xs:simpleType name="VirtioConsoleBackendType">
+  <xs:annotation>
+       <xs:documentation>A string with value: ``pty``, ``stdio``, or ``file``.</xs:documentation>
+  </xs:annotation>
   <xs:restriction base="xs:string">
     <xs:enumeration value="pty" />
     <xs:enumeration value="stdio" />
@@ -350,6 +365,9 @@ device file when user config it as virtio serial port, which can be read and wri
         <xs:documentation>Specifying unique identifier to distinguish same devices in guest.</xs:documentation>
       </xs:annotation>
       <xs:simpleType>
+         <xs:annotation>
+              <xs:documentation>A string with letters, digits, ``_``, or ``-``.</xs:documentation>
+         </xs:annotation>
         <xs:restriction base="xs:string">
           <xs:pattern value="[a-zA-Z0-9_\-]*" />
         </xs:restriction>
diff --git a/misc/config_tools/schema/config.xsd b/misc/config_tools/schema/config.xsd
index 8a6a23495..fe0651c98 100644
--- a/misc/config_tools/schema/config.xsd
+++ b/misc/config_tools/schema/config.xsd
@@ -298,7 +298,7 @@ Refer to :ref:`vuart_config` for detailed vUART settings.</xs:documentation>
         </xs:annotation>
       <xs:simpleType>
         <xs:annotation>
-          <xs:documentation>string from 1 to 32 characters long.</xs:documentation>
+          <xs:documentation>A string from 1 to 32 characters long (with no spaces).</xs:documentation>
         </xs:annotation>
         <xs:restriction base="xs:string">
           <xs:minLength value="1" />
@@ -474,14 +474,14 @@ mouse, and tablet.  It sends Linux input layer events over virtio.</xs:documenta
 <xs:complexType name="ACRNConfigType">
   <xs:all>
     <xs:element name="hv" type="HVConfigType">
-      <xs:annotation>
+      <xs:annotation acrn:title="Hypervisor Options">
         <xs:documentation>The hypervisor configuration defines a working scenario and target
 board by configuring the hypervisor image features and capabilities such as
 setting up the log and the serial port.</xs:documentation>
       </xs:annotation>
     </xs:element>
     <xs:element name="vm" maxOccurs="unbounded">
-      <xs:annotation>
+      <xs:annotation acrn:title="Virtual Machine Options">
         <xs:documentation>VM configuration includes **scenario-based** VM configuration
 information that is used to describe the characteristics and attributes for
 all VMs in a user scenario. It also includes **launch script-based** VM
diff --git a/misc/config_tools/schema/types.xsd b/misc/config_tools/schema/types.xsd
index cd333a352..2a47703e1 100644
--- a/misc/config_tools/schema/types.xsd
+++ b/misc/config_tools/schema/types.xsd
@@ -14,6 +14,9 @@
 </xs:simpleType>
 
 <xs:simpleType name="EnablementType">
+  <xs:annotation>
+    <xs:documentation>A string with value: ``Enable`` or ``Disable``.</xs:documentation>
+  </xs:annotation>
   <xs:restriction base="xs:string">
     <xs:enumeration value="Enable" />
     <xs:enumeration value="Disable" />
@@ -22,7 +25,7 @@
 
 <xs:simpleType name="HexFormat">
   <xs:annotation>
-    <xs:documentation>An Integer value in hexadecimal format.</xs:documentation>
+    <xs:documentation>An Integer value in hexadecimal format (with a leading ``0x``).</xs:documentation>
   </xs:annotation>
   <xs:restriction base="xs:string">
     <xs:pattern value="0[Xx][0-9A-Fa-f]+|0" />
@@ -37,7 +40,7 @@
 
 <xs:simpleType name="BuildType">
   <xs:annotation>
-    <xs:documentation>A string that indicates the build type of the hypervisor.</xs:documentation>
+    <xs:documentation>A string with value ``Release`` or ``Debug`` that indicates the build type of the hypervisor.</xs:documentation>
   </xs:annotation>
   <xs:restriction base="xs:string">
     <xs:enumeration value="release">
@@ -126,14 +129,14 @@ higher value (lower severity) are discarded.</xs:documentation>
 
 <xs:simpleType name="SchedulerType">
   <xs:annotation>
-    <xs:documentation>Options:
+    <xs:documentation>A string specifying the scheduling option:
 
 - ``No-Operation (NOOP)``: The No-Operation (NOOP) scheduler means there is a
   strict one-to-one mapping between vCPUs and pCPUs.
 - ``Borrowed Virtual Time``: The Borrowed Virtual Time (BVT) scheduler is a
   virtual time-based scheduling algorithm. It dispatches the runnable thread with the
   earliest effective virtual time.
-- ``Priority Based Scheduling``: The priority based scheduler supports vCPU scheduling based on their pre-configured priorities.
+- ``Priority Based Scheduling``: The priority based scheduler supports vCPU scheduling based on pre-configured priorities.
 
 Read more about the available scheduling options in :ref:`cpu_sharing`.</xs:documentation>
   </xs:annotation>
@@ -181,18 +184,27 @@ Read more about the available scheduling options in :ref:`cpu_sharing`.</xs:docu
 </xs:simpleType>
 
 <xs:simpleType name="VMNameType">
+  <xs:annotation>
+    <xs:documentation>A string of up to 15 letters, digits, ``_``, or ``-``.</xs:documentation>
+  </xs:annotation>
   <xs:restriction base="xs:string">
     <xs:pattern value="([a-zA-Z0-9_\-]){1,15}" />
   </xs:restriction>
 </xs:simpleType>
 
 <xs:simpleType name="VBDFType">
+  <xs:annotation>
+    <xs:documentation>A string with up to two hex digits, a ``:``, two hex digits, a ``.``, and one digit between 0-7.</xs:documentation>
+  </xs:annotation>
   <xs:restriction base="xs:string">
     <xs:pattern value="[0-9A-Fa-f]{1,2}:[0-1][0-9A-Fa-f].[0-7]" />
   </xs:restriction>
 </xs:simpleType>
 
 <xs:simpleType name="ProviderType">
+  <xs:annotation>
+    <xs:documentation>A string with value ``Hypervisor`` or ``Device Model``.</xs:documentation>
+  </xs:annotation>
   <xs:restriction base="xs:string">
     <xs:enumeration value="Hypervisor" />
     <xs:enumeration value="Device Model" />
@@ -215,6 +227,9 @@ Read more about the available scheduling options in :ref:`cpu_sharing`.</xs:docu
 </xs:complexType>
 
 <xs:complexType name="IVSHMEMVMS">
+  <xs:annotation>
+    <xs:documentation>A sequence of Shared VM names and their Virtual BDF values.</xs:documentation>
+  </xs:annotation>
   <xs:sequence>
    <xs:element name="IVSHMEM_VM" type="IVSHMEMVM" maxOccurs="unbounded">
      <xs:annotation>
@@ -225,6 +240,9 @@ Read more about the available scheduling options in :ref:`cpu_sharing`.</xs:docu
 </xs:complexType>
 
 <xs:simpleType name="IVSHMEMSize">
+  <xs:annotation>
+    <xs:documentation>An Integer with value a power of 2 between 2 and 512.</xs:documentation>
+  </xs:annotation>
   <xs:restriction base="xs:integer">
     <xs:enumeration value="2" />
     <xs:enumeration value="4" />
@@ -245,6 +263,9 @@ Read more about the available scheduling options in :ref:`cpu_sharing`.</xs:docu
         <xs:documentation>Name of the shared memory region.</xs:documentation>
       </xs:annotation>
       <xs:simpleType>
+  <xs:annotation>
+    <xs:documentation>A string with no spaces.</xs:documentation>
+  </xs:annotation>
 	<xs:restriction base="xs:string">
 	  <xs:pattern value="\w+" />
 	</xs:restriction>