diff --git a/bundles/org.openhab.binding.oceanic/src/main/resources/OH-INF/thing/network.xml b/bundles/org.openhab.binding.oceanic/src/main/resources/OH-INF/thing/network.xml
index 9fc10fc31..49e731f47 100644
--- a/bundles/org.openhab.binding.oceanic/src/main/resources/OH-INF/thing/network.xml
+++ b/bundles/org.openhab.binding.oceanic/src/main/resources/OH-INF/thing/network.xml
@@ -59,7 +59,6 @@
 			</parameter>
 			<parameter name="portNumber" type="integer" required="true">
 				<description>Port number of the network proxy</description>
-				<required>false</required>
 				<label>Port</label>
 			</parameter>
 			<parameter name="interval" type="decimal" required="true">
diff --git a/bundles/org.openhab.binding.onewiregpio/src/main/resources/OH-INF/thing/thing-types.xml b/bundles/org.openhab.binding.onewiregpio/src/main/resources/OH-INF/thing/thing-types.xml
index 2f4278b99..25c418b62 100644
--- a/bundles/org.openhab.binding.onewiregpio/src/main/resources/OH-INF/thing/thing-types.xml
+++ b/bundles/org.openhab.binding.onewiregpio/src/main/resources/OH-INF/thing/thing-types.xml
@@ -26,7 +26,6 @@
 			<parameter name="precision" type="integer" min="0" max="3">
 				<label>Sensor Precision</label>
 				<description>Sensor precision after floating point.</description>
-				<required>false</required>
 				<default>3</default>
 			</parameter>
 
diff --git a/bundles/org.openhab.binding.onkyo/src/main/resources/OH-INF/binding/binding.xml b/bundles/org.openhab.binding.onkyo/src/main/resources/OH-INF/binding/binding.xml
index e65c540aa..9c486c685 100644
--- a/bundles/org.openhab.binding.onkyo/src/main/resources/OH-INF/binding/binding.xml
+++ b/bundles/org.openhab.binding.onkyo/src/main/resources/OH-INF/binding/binding.xml
@@ -10,7 +10,6 @@
 		<parameter name="callbackUrl" type="text">
 			<label>Callback URL</label>
 			<description>url to use for playing notification sounds, e.g. http://192.168.0.2:8080</description>
-			<required>false</required>
 		</parameter>
 	</config-description>
 </binding:binding>
diff --git a/bundles/org.openhab.binding.openwebnet/src/main/resources/OH-INF/thing/ZBAutomation.xml b/bundles/org.openhab.binding.openwebnet/src/main/resources/OH-INF/thing/ZBAutomation.xml
index b84f3c4a9..87a60e437 100644
--- a/bundles/org.openhab.binding.openwebnet/src/main/resources/OH-INF/thing/ZBAutomation.xml
+++ b/bundles/org.openhab.binding.openwebnet/src/main/resources/OH-INF/thing/ZBAutomation.xml
@@ -27,20 +27,18 @@
 		<representation-property>ownId</representation-property>
 
 		<config-description>
-			<parameter name="shutterRun" type="text">
+			<parameter name="shutterRun" type="text" required="true">
 				<label>Shutter Run</label>
 				<description>Time (in ms) to go from max position (e.g. CLOSED) to the other position (e.g. OPEN). Example: 12000
 					(=12sec).
 					Use AUTO (default) to calibrate the shutter automatically (UP->DOWN->Position%) the first time a Position
 					command (%)
 					is sent.</description>
-				<required>true</required>
 				<default>AUTO</default>
 			</parameter>
-			<parameter name="where" type="text">
+			<parameter name="where" type="text" required="true">
 				<label>OpenWebNet Device Address (where)</label>
 				<description>It identifies one ZigBee device. Example: 765432101#9</description>
-				<required>true</required>
 			</parameter>
 		</config-description>
 
diff --git a/bundles/org.openhab.binding.orvibo/src/main/resources/OH-INF/thing/thing-types.xml b/bundles/org.openhab.binding.orvibo/src/main/resources/OH-INF/thing/thing-types.xml
index 178fe6a97..1ea38ed30 100644
--- a/bundles/org.openhab.binding.orvibo/src/main/resources/OH-INF/thing/thing-types.xml
+++ b/bundles/org.openhab.binding.orvibo/src/main/resources/OH-INF/thing/thing-types.xml
@@ -14,7 +14,6 @@
 			<parameter name="deviceId" type="text" required="true">
 				<label>MAC Address</label>
 				<description>The MAC address identifies a specific S20 Socket.</description>
-				<required>true</required>
 			</parameter>
 		</config-description>
 
diff --git a/bundles/org.openhab.binding.paradoxalarm/src/main/resources/OH-INF/thing/ip150connector.xml b/bundles/org.openhab.binding.paradoxalarm/src/main/resources/OH-INF/thing/ip150connector.xml
index ccc91b45c..7eaa1e0c5 100644
--- a/bundles/org.openhab.binding.paradoxalarm/src/main/resources/OH-INF/thing/ip150connector.xml
+++ b/bundles/org.openhab.binding.paradoxalarm/src/main/resources/OH-INF/thing/ip150connector.xml
@@ -27,7 +27,6 @@
 				<label>IP150 Password</label>
 				<description>Password for accessing IP150</description>
 				<context>password</context>
-				<required>true</required>
 			</parameter>
 			<parameter name="pcPassword" type="text" required="true">
 				<label>PC Password</label>
@@ -39,7 +38,6 @@
 				<label>Network Address</label>
 				<description>IP address or host name of IP150</description>
 				<context>network-address</context>
-				<required>true</required>
 			</parameter>
 			<parameter name="port" type="integer" required="true">
 				<label>Port</label>
diff --git a/bundles/org.openhab.binding.phc/src/main/resources/OH-INF/thing/thing-types.xml b/bundles/org.openhab.binding.phc/src/main/resources/OH-INF/thing/thing-types.xml
index e6a0c2a31..c0de44765 100644
--- a/bundles/org.openhab.binding.phc/src/main/resources/OH-INF/thing/thing-types.xml
+++ b/bundles/org.openhab.binding.phc/src/main/resources/OH-INF/thing/thing-types.xml
@@ -10,10 +10,9 @@
 			STM.</description>
 
 		<config-description>
-			<parameter name="port" type="text">
+			<parameter name="port" type="text" required="true">
 				<label>Serial Port</label>
 				<description>Serial Port the PHC modules are connected to</description>
-				<required>true</required>
 				<context>serial-port</context>
 				<limitToOptions>false</limitToOptions>
 			</parameter>
@@ -35,10 +34,9 @@
 		</channel-groups>
 
 		<config-description>
-			<parameter name="address" type="text" pattern="[0-1]{5}" min="5" max="5">
+			<parameter name="address" type="text" pattern="[0-1]{5}" min="5" max="5" required="true">
 				<label>Address</label>
 				<description>Address of the module as binary, like the DIP switches.</description>
-				<required>true</required>
 			</parameter>
 		</config-description>
 
@@ -58,10 +56,9 @@
 		</channel-groups>
 
 		<config-description>
-			<parameter name="address" type="text" pattern="[0-1]{5}" min="5" max="5">
+			<parameter name="address" type="text" pattern="[0-1]{5}" min="5" max="5" required="true">
 				<label>Address</label>
 				<description>Address of the module as binary, like the DIP switches.</description>
-				<required>true</required>
 			</parameter>
 		</config-description>
 	</thing-type>
@@ -80,10 +77,9 @@
 		</channel-groups>
 
 		<config-description>
-			<parameter name="address" type="text" pattern="[0-1]{5}" min="5" max="5">
+			<parameter name="address" type="text" pattern="[0-1]{5}" min="5" max="5" required="true">
 				<label>Address</label>
 				<description>Address of the module as binary, like the DIP switches.</description>
-				<required>true</required>
 			</parameter>
 			<parameter name="upDownTime1" type="integer" min="1" max="65535">
 				<advanced>true</advanced>
@@ -125,10 +121,9 @@
 		</channel-groups>
 
 		<config-description>
-			<parameter name="address" type="text" pattern="[0-1]{5}" min="5" max="5">
+			<parameter name="address" type="text" pattern="[0-1]{5}" min="5" max="5" required="true">
 				<label>Address</label>
 				<description>Address of the module as binary, like the DIP switches.</description>
-				<required>true</required>
 			</parameter>
 			<parameter name="dimTime1" type="integer" min="1" max="255">
 				<advanced>true</advanced>
diff --git a/bundles/org.openhab.binding.pilight/src/main/resources/OH-INF/thing/devices.xml b/bundles/org.openhab.binding.pilight/src/main/resources/OH-INF/thing/devices.xml
index c55db4011..cecd34ef7 100644
--- a/bundles/org.openhab.binding.pilight/src/main/resources/OH-INF/thing/devices.xml
+++ b/bundles/org.openhab.binding.pilight/src/main/resources/OH-INF/thing/devices.xml
@@ -72,10 +72,9 @@
 		<label>Text Value</label>
 		<state readOnly="true"/>
 		<config-description>
-			<parameter name="property" type="text">
+			<parameter name="property" type="text" required="true">
 				<label>Property</label>
 				<description>The Property of the Device.</description>
-				<required>true</required>
 			</parameter>
 		</config-description>
 	</channel-type>
@@ -85,10 +84,9 @@
 		<label>Number Value</label>
 		<state readOnly="true"/>
 		<config-description>
-			<parameter name="property" type="text">
+			<parameter name="property" type="text" required="true">
 				<label>Property</label>
 				<description>The Property of the Device.</description>
-				<required>true</required>
 			</parameter>
 		</config-description>
 	</channel-type>
diff --git a/bundles/org.openhab.binding.rme/src/main/resources/OH-INF/thing/rme.xml b/bundles/org.openhab.binding.rme/src/main/resources/OH-INF/thing/rme.xml
index b11b176b1..2fe46bdf3 100644
--- a/bundles/org.openhab.binding.rme/src/main/resources/OH-INF/thing/rme.xml
+++ b/bundles/org.openhab.binding.rme/src/main/resources/OH-INF/thing/rme.xml
@@ -36,12 +36,11 @@
 		</channels>
 
 		<config-description>
-			<parameter name="port" type="text">
+			<parameter name="port" type="text" required="true">
 				<label>Serial Port</label>
 				<context>serial-port</context>
 				<limitToOptions>false</limitToOptions>
 				<description>Serial Port the RME Rain Manager is connected to</description>
-				<required>true</required>
 			</parameter>
 		</config-description>
 	</thing-type>