diff --git a/src/BeSimple/SoapCommon/Type/AbstractKeyValue.php b/src/BeSimple/SoapCommon/Type/AbstractKeyValue.php
new file mode 100644
index 0000000..bf5d207
--- /dev/null
+++ b/src/BeSimple/SoapCommon/Type/AbstractKeyValue.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace BeSimple\SoapCommon\Type;
+
+use BeSimple\SoapBundle\ServiceDefinition\Annotation as Soap;
+
+abstract class AbstractKeyValue
+{
+    /**
+     * @Soap\ComplexType("string")
+     */
+    protected $key;
+
+    /**
+     * The Soap type of this variable must be defined in child class
+     */
+    protected $value;
+
+    public function __construct($key, $value)
+    {
+        $this->key   = $key;
+        $this->value = $value;
+    }
+
+    public function getKey()
+    {
+        return $this->key;
+    }
+
+    public function getValue()
+    {
+        return $this->value;
+    }
+}
diff --git a/src/BeSimple/SoapCommon/Type/KeyValue/Boolean.php b/src/BeSimple/SoapCommon/Type/KeyValue/Boolean.php
new file mode 100644
index 0000000..bfe684a
--- /dev/null
+++ b/src/BeSimple/SoapCommon/Type/KeyValue/Boolean.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace BeSimple\SoapCommon\Type\KeyValue;
+
+use BeSimple\SoapBundle\ServiceDefinition\Annotation as Soap;
+use BeSimple\SoapCommon\Type\AbstractKeyValue;
+
+class Boolean extends AbstractKeyValue
+{
+    /**
+     * @Soap\ComplexType("boolean")
+     */
+    protected $value;
+}
diff --git a/src/BeSimple/SoapCommon/Type/KeyValue/Date.php b/src/BeSimple/SoapCommon/Type/KeyValue/Date.php
new file mode 100644
index 0000000..61c236d
--- /dev/null
+++ b/src/BeSimple/SoapCommon/Type/KeyValue/Date.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace BeSimple\SoapCommon\Type\KeyValue;
+
+use BeSimple\SoapBundle\ServiceDefinition\Annotation as Soap;
+use BeSimple\SoapCommon\Type\AbstractKeyValue;
+
+class Date extends AbstractKeyValue
+{
+    /**
+     * @Soap\ComplexType("date")
+     */
+    protected $value;
+}
diff --git a/src/BeSimple/SoapCommon/Type/KeyValue/DateTime.php b/src/BeSimple/SoapCommon/Type/KeyValue/DateTime.php
new file mode 100644
index 0000000..af78000
--- /dev/null
+++ b/src/BeSimple/SoapCommon/Type/KeyValue/DateTime.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace BeSimple\SoapCommon\Type\KeyValue;
+
+use BeSimple\SoapBundle\ServiceDefinition\Annotation as Soap;
+use BeSimple\SoapCommon\Type\AbstractKeyValue;
+
+class DateTime extends AbstractKeyValue
+{
+    /**
+     * @Soap\ComplexType("dateTime")
+     */
+    protected $value;
+}
diff --git a/src/BeSimple/SoapCommon/Type/KeyValue/Float.php b/src/BeSimple/SoapCommon/Type/KeyValue/Float.php
new file mode 100644
index 0000000..6d286b0
--- /dev/null
+++ b/src/BeSimple/SoapCommon/Type/KeyValue/Float.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace BeSimple\SoapCommon\Type\KeyValue;
+
+use BeSimple\SoapBundle\ServiceDefinition\Annotation as Soap;
+use BeSimple\SoapCommon\Type\AbstractKeyValue;
+
+class Float extends AbstractKeyValue
+{
+    /**
+     * @Soap\ComplexType("float")
+     */
+    protected $value;
+}
diff --git a/src/BeSimple/SoapCommon/Type/KeyValue/Int.php b/src/BeSimple/SoapCommon/Type/KeyValue/Int.php
new file mode 100644
index 0000000..0e0c190
--- /dev/null
+++ b/src/BeSimple/SoapCommon/Type/KeyValue/Int.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace BeSimple\SoapCommon\Type\KeyValue;
+
+use BeSimple\SoapBundle\ServiceDefinition\Annotation as Soap;
+use BeSimple\SoapCommon\Type\AbstractKeyValue;
+
+class Int extends AbstractKeyValue
+{
+    /**
+     * @Soap\ComplexType("int")
+     */
+    protected $value;
+}
diff --git a/src/BeSimple/SoapCommon/Type/KeyValue/String.php b/src/BeSimple/SoapCommon/Type/KeyValue/String.php
new file mode 100644
index 0000000..29473a9
--- /dev/null
+++ b/src/BeSimple/SoapCommon/Type/KeyValue/String.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace BeSimple\SoapCommon\Type\KeyValue;
+
+use BeSimple\SoapBundle\ServiceDefinition\Annotation as Soap;
+use BeSimple\SoapCommon\Type\AbstractKeyValue;
+
+class String extends AbstractKeyValue
+{
+    /**
+     * @Soap\ComplexType("string")
+     */
+    protected $value;
+}