diff --git a/src/blackmisc/aviobase.h b/src/blackmisc/aviobase.h
index 0594c43dc..1cac99ccd 100644
--- a/src/blackmisc/aviobase.h
+++ b/src/blackmisc/aviobase.h
@@ -7,7 +7,7 @@
 #define BLACKMISC_AVIOBASE_H
 
 // QtGlobal is required for asserts
-#include "blackmisc/streamable.h"
+#include "blackmisc/valueobject.h"
 #include "blackmisc/pqconstants.h"
 #include <QtGlobal>
 
@@ -16,10 +16,10 @@ namespace BlackMisc
     namespace Aviation
     {
 
-class CAvionicsBase : public BlackMisc::CStreamable
         /*!
          * \brief Base class for avionics
          */
+        class CAvionicsBase : public BlackMisc::CValueObject
         {
         protected:
             QString m_name; //!< name of the unit
diff --git a/src/blackmisc/coordinategeodetic.h b/src/blackmisc/coordinategeodetic.h
index fa473b0b3..839d72e15 100644
--- a/src/blackmisc/coordinategeodetic.h
+++ b/src/blackmisc/coordinategeodetic.h
@@ -55,11 +55,10 @@ namespace BlackMisc
 
         };
 
-
         /*!
          * \brief Geodetic coordinate
          */
-        class CCoordinateGeodetic : public CStreamable
+        class CCoordinateGeodetic : public CValueObject
         {
         private:
             BlackMisc::Geo::CLatitude m_latitude; //!< Latitude
diff --git a/src/blackmisc/mathmatrixbase.h b/src/blackmisc/mathmatrixbase.h
index 35c942fde..d7f3b67b8 100644
--- a/src/blackmisc/mathmatrixbase.h
+++ b/src/blackmisc/mathmatrixbase.h
@@ -6,7 +6,7 @@
 #ifndef BLACKMISC_MATHMATRIXBASE_H
 #define BLACKMISC_MATHMATRIXBASE_H
 
-#include "blackmisc/streamable.h"
+#include "blackmisc/valueobject.h"
 #include "blackmisc/mathvector3dbase.h"
 #include <QGenericMatrix>
 #include <QDBusMetaType>
@@ -19,7 +19,7 @@ namespace BlackMisc
         /*!
          * \brief Base functionality of a matrix
          */
-        template<class ImplMatrix, int Rows, int Columns> class CMatrixBase : public BlackMisc::CStreamable
+        template<class ImplMatrix, int Rows, int Columns> class CMatrixBase : public BlackMisc::CValueObject
         {
         private:
             /*!
diff --git a/src/blackmisc/mathvector3dbase.h b/src/blackmisc/mathvector3dbase.h
index f6e98c2c9..61299bbb8 100644
--- a/src/blackmisc/mathvector3dbase.h
+++ b/src/blackmisc/mathvector3dbase.h
@@ -6,7 +6,7 @@
 #ifndef BLACKMISC_MATHVECTOR3DBASE_H
 #define BLACKMISC_MATHVECTOR3DBASE_H
 
-#include "blackmisc/streamable.h"
+#include "blackmisc/valueobject.h"
 #include "blackmisc/mathematics.h"
 
 namespace BlackMisc
@@ -19,7 +19,7 @@ namespace BlackMisc
         /*!
          * \brief 3D vector base (x, y, z)
          */
-        template <class ImplVector> class CVector3DBase : public CStreamable
+        template <class ImplVector> class CVector3DBase : public CValueObject
         {
         private:
             /*!
diff --git a/src/blackmisc/pqbase.h b/src/blackmisc/pqbase.h
index 7c9d65553..8277639cc 100644
--- a/src/blackmisc/pqbase.h
+++ b/src/blackmisc/pqbase.h
@@ -6,7 +6,7 @@
 #ifndef BLACKMISC_PQBASE_H
 #define BLACKMISC_PQBASE_H
 
-#include "blackmisc/streamable.h"
+#include "blackmisc/valueobject.h"
 #include "blackmisc/debug.h"
 #include "blackmisc/mathematics.h"
 #include <QCoreApplication>
@@ -24,7 +24,7 @@ namespace BlackMisc
         /*!
          * \brief Base class for all units, such as meter, hertz.
          */
-        class CMeasurementUnit : public CStreamable
+        class CMeasurementUnit : public CValueObject
         {
         protected:
             /*!
diff --git a/src/blackmisc/pqphysicalquantity.h b/src/blackmisc/pqphysicalquantity.h
index 1a24d2fa5..11413c361 100644
--- a/src/blackmisc/pqphysicalquantity.h
+++ b/src/blackmisc/pqphysicalquantity.h
@@ -23,7 +23,7 @@ namespace BlackMisc
         /*!
          * \brief A physical quantity such as "5m", "20s", "1500ft/s"
          */
-        template <class MU, class PQ> class CPhysicalQuantity : public BlackMisc::CStreamable
+        template <class MU, class PQ> class CPhysicalQuantity : public BlackMisc::CValueObject
         {
 
         private:
diff --git a/src/blackmisc/streamable.h b/src/blackmisc/streamable.h
deleted file mode 100644
index 142bf20b5..000000000
--- a/src/blackmisc/streamable.h
+++ /dev/null
@@ -1,201 +0,0 @@
-#ifndef BLACKMISC_STREAMABLE_H
-#define BLACKMISC_STREAMABLE_H
-
-#include "blackmisc/debug.h"
-#include <QtDBus/QDBusMetaType>
-#include <QString>
-#include <QtGlobal>
-#include <QDataStream>
-#include <QDebug>
-#include <iostream>
-
-namespace BlackMisc {
-
-/*!
- * \brief Base class for streamable value objects.
- * Public non-virtual interface with protected virtual implementation.
- */
-// Virtual operators: http://stackoverflow.com/a/4571634/356726
-class CStreamable
-{
-    /*!
-     * \brief Stream << overload to be used in debugging messages
-     * \param debug
-     * \param uc
-     * \return
-     */
-    friend QDebug operator<<(QDebug debug, const CStreamable &uc)
-    {
-        debug << uc.stringForStreaming();
-        return debug;
-    }
-
-    /*!
-     * \brief Operator << based on text stream
-     * \param textStream
-     * \param uc
-     * \return
-     */
-    friend QTextStream &operator<<(QTextStream &textStream, const CStreamable &uc)
-    {
-        textStream << uc.stringForStreaming();
-        return textStream;
-    }
-
-    /*!
-     * \brief Operator << when there is no debug stream
-     * \param nodebug
-     * \param uc
-     * \return
-     */
-    friend QNoDebug operator<<(QNoDebug nodebug, const CStreamable & /* uc */)
-    {
-        return nodebug;
-    }
-
-    /*!
-     * \brief Stream operator << for QDataStream
-     * \param stream
-     * \param uc
-     * \return
-     */
-    friend QDataStream &operator<<(QDataStream &stream, const CStreamable &uc)
-    {
-        stream << uc.stringForStreaming();
-        return stream;
-    }
-
-    /*!
-     * \brief Stream operator << for log messages
-     * \param log
-     * \param uc
-     * \return
-     */
-    friend CLogMessage operator<<(CLogMessage log, const CStreamable &uc)
-    {
-        log << uc.stringForStreaming();
-        return log;
-    }
-
-    /*!
-     * \brief Stream operator << for std::cout
-     * \param ostr
-     * \param uc
-     * \return
-     */
-    friend std::ostream &operator<<(std::ostream &ostr, const CStreamable &uc)
-    {
-        ostr << uc.stringForStreaming().toStdString();
-        return ostr;
-    }
-
-    /*!
-     * \brief Unmarshalling operator >>, DBus to object
-     * \param argument
-     * \param uc
-     * \return
-     */
-    friend const QDBusArgument &operator>>(const QDBusArgument &argument, CStreamable &uc)
-    {
-        argument.beginStructure();
-        uc.unmarshallFromDbus(argument);
-        argument.endStructure();
-        return argument;
-    }
-
-    /*!
-     * \brief Marshalling operator <<, object to DBus
-     * \param argument
-     * \param pq
-     * \return
-     */
-    friend QDBusArgument &operator<<(QDBusArgument &argument, const CStreamable &uc)
-    {
-        argument.beginStructure();
-        uc.marshallToDbus(argument);
-        argument.endStructure();
-        return argument;
-    }
-
-public:
-    /*!
-     * \brief Virtual destructor
-     */
-    virtual ~CStreamable() {}
-
-    /*!
-     * \brief Cast as QString
-     * \bool i18n
-     */
-    QString toQString(bool i18n = false) const
-    {
-        return this->convertToQString(i18n);
-    }
-
-protected:
-    /*!
-     * \brief Default constructor
-     */
-    CStreamable() {}
-
-    /*!
-     * \brief String for streaming operators
-     * \return
-     */
-    virtual QString stringForStreaming() const
-    {
-        // simplest default implementation requires only one method
-        return this->convertToQString();
-    }
-
-    /*!
-     * \brief String for QString conversion
-     * \param i18n
-     * \return
-     */
-    virtual QString convertToQString(bool i18n = false) const = 0;
-
-    /*!
-     * \brief Stream to DBus
-     * \param argument
-     */
-    virtual void marshallToDbus(QDBusArgument &) const = 0;
-
-    /*!
-     * \brief Stream from DBus
-     * \param argument
-     */
-    virtual void unmarshallFromDbus(const QDBusArgument &) = 0;
-};
-
-/*!
- * Non-member non-friend operator for streaming T objects to QDBusArgument.
- * Needed because we can't rely on the friend operator in some cases due to
- * an unrelated template for streaming Container<T> in QtDBus/qdbusargument.h
- * which matches more types than it can actually handle.
- * \param argument
- * \param uc
- */
-template <class T> typename std::enable_if<std::is_base_of<CStreamable, T>::value, QDBusArgument>::type const&
-operator>>(const QDBusArgument &argument, T &uc)
-{
-    return argument >> static_cast<CStreamable&>(uc);
-}
-
-/*!
- * Non-member non-friend operator for streaming T objects from QDBusArgument.
- * Needed because we can't rely on the friend operator in some cases due to
- * an unrelated template for streaming Container<T> in QtDBus/qdbusargument.h
- * which matches more types than it can actually handle.
- * \param argument
- * \param uc
- */
-template <class T> typename std::enable_if<std::is_base_of<CStreamable, T>::value, QDBusArgument>::type&
-operator<<(QDBusArgument &argument, T &uc)
-{
-    return argument << static_cast<CStreamable const&>(uc);
-}
-
-} // namespace
-
-#endif // guard
diff --git a/src/blackmisc/valueobject.cpp b/src/blackmisc/valueobject.cpp
new file mode 100644
index 000000000..4aadeb43d
--- /dev/null
+++ b/src/blackmisc/valueobject.cpp
@@ -0,0 +1,67 @@
+#include "valueobject.h"
+#include "valuemap.h"
+#include "blackmiscfreefunctions.h"
+
+namespace BlackMisc
+{
+
+    /*
+     * Constructor
+     */
+    CValueObject::CValueObject() {}
+
+    /*
+     * Stringify
+     */
+    QString CValueObject::toQString(bool i18n) const
+    {
+        return this->convertToQString(i18n);
+    }
+
+    /*
+     * Stringify
+     */
+    QString CValueObject::toFormattedQString(bool i18n) const
+    {
+        return this->toQString(i18n);
+    }
+
+    /*
+     * Stringify
+     */
+    std::string CValueObject::toStdString(bool i18n) const
+    {
+        return this->convertToQString(i18n).toStdString();
+    }
+
+    /*
+     * Streaming
+     */
+    QString CValueObject::stringForStreaming() const
+    {
+        // simplest default implementation requires only one method
+        return this->convertToQString();
+    }
+
+    /*
+     * from DBus
+     */
+    const QDBusArgument &operator>>(const QDBusArgument &argument, CValueObject &uc)
+    {
+        argument.beginStructure();
+        uc.unmarshallFromDbus(argument);
+        argument.endStructure();
+        return argument;
+    }
+
+    /*
+     * to DBus
+     */
+    QDBusArgument &operator<<(QDBusArgument &argument, const CValueObject &uc)
+    {
+        argument.beginStructure();
+        uc.marshallToDbus(argument);
+        argument.endStructure();
+        return argument;
+    }
+}
diff --git a/src/blackmisc/valueobject.h b/src/blackmisc/valueobject.h
new file mode 100644
index 000000000..a03b6aedb
--- /dev/null
+++ b/src/blackmisc/valueobject.h
@@ -0,0 +1,209 @@
+#ifndef BLACKMISC_VALUEOBJECT_H
+#define BLACKMISC_VALUEOBJECT_H
+
+#include "blackmisc/debug.h"
+#include <QtDBus/QDBusMetaType>
+#include <QString>
+#include <QtGlobal>
+#include <QDataStream>
+#include <QDebug>
+#include <type_traits>
+#include <iostream>
+
+namespace BlackMisc
+{
+
+    /*!
+     * \brief Base class for value objects.
+     * Public non-virtual interface with protected virtual implementation.
+     */
+    class CValueObject
+    {
+
+        /*!
+         * \brief Stream << overload to be used in debugging messages
+         * \param debug
+         * \param uc
+         * \return
+         */
+        friend QDebug operator<<(QDebug debug, const CValueObject &uc)
+        {
+            debug << uc.stringForStreaming();
+            return debug;
+        }
+
+        /*!
+         * \brief Operator << based on text stream
+         * \param textStream
+         * \param uc
+         * \return
+         */
+        friend QTextStream &operator<<(QTextStream &textStream, const CValueObject &uc)
+        {
+            textStream << uc.stringForStreaming();
+            return textStream;
+        }
+
+        /*!
+         * \brief Operator << when there is no debug stream
+         * \param nodebug
+         * \param uc
+         * \return
+         */
+        friend QNoDebug operator<<(QNoDebug nodebug, const CValueObject & /* uc */)
+        {
+            return nodebug;
+        }
+
+        /*!
+         * \brief Stream operator << for QDataStream
+         * \param stream
+         * \param uc
+         * \return
+         */
+        friend QDataStream &operator<<(QDataStream &stream, const CValueObject &uc)
+        {
+            stream << uc.stringForStreaming();
+            return stream;
+        }
+
+        /*!
+         * \brief Stream operator << for log messages
+         * \param log
+         * \param uc
+         * \return
+         */
+        friend CLogMessage operator<<(CLogMessage log, const CValueObject &uc)
+        {
+            log << uc.stringForStreaming();
+            return log;
+        }
+
+        /*!
+         * \brief Stream operator << for std::cout
+         * \param ostr
+         * \param uc
+         * \return
+         */
+        friend std::ostream &operator<<(std::ostream &ostr, const CValueObject &uc)
+        {
+            ostr << uc.stringForStreaming().toStdString();
+            return ostr;
+        }
+
+        /*!
+         * \brief Unmarshalling operator >>, DBus to object
+         * \param argument
+         * \param uc
+         * \return
+         */
+        friend const QDBusArgument &operator>>(const QDBusArgument &argument, CValueObject &uc);
+
+        /*!
+         * \brief Marshalling operator <<, object to DBus
+         * \param argument
+         * \param pq
+         * \return
+         */
+        friend QDBusArgument &operator<<(QDBusArgument &argument, const CValueObject &uc);
+
+    public:
+        /*!
+         * \brief Virtual destructor
+         */
+        virtual ~CValueObject() {}
+
+        /*!
+         * \brief Cast as QString
+         * \bool i18n
+         */
+        QString toQString(bool i18n = false) const;
+
+        /*!
+         * \brief Cast to pretty-printed QString
+         * \return
+         */
+        virtual QString toFormattedQString(bool i18n = false) const;
+
+        /*!
+         * \brief To std string
+         * \param i18n
+         * \return
+         */
+        std::string toStdString(bool i18n = false) const;
+
+
+    protected:
+        /*!
+         * \brief Default constructor
+         */
+        CValueObject();
+
+        /*!
+         * \brief String for streaming operators
+         * \return
+         */
+        virtual QString stringForStreaming() const;
+
+        /*!
+         * \brief String for QString conversion
+         * \param i18n
+         * \return
+         */
+        virtual QString convertToQString(bool i18n = false) const = 0;
+
+        /*!
+         * \brief Marshall to DBus
+         * \param argument
+         */
+        virtual void marshallToDbus(QDBusArgument &) const = 0;
+
+        /*!
+         * \brief Unmarshall from DBus
+         * \param argument
+         */
+        virtual void unmarshallFromDbus(const QDBusArgument &) = 0;
+
+    };
+
+    /*!
+     * Non-member non-friend operator for streaming T objects to QDBusArgument.
+     * Needed because we can't rely on the friend operator in some cases due to
+     * an unrelated template for streaming Container<T> in QtDBus/qdbusargument.h
+     * which matches more types than it can actually handle.
+     *
+     * <a href="https://dev.vatsim-germany.org/boards/15/topics/26?r=891#message-891">Forum</a>
+     * <a href="https://dev.vatsim-germany.org/boards/15/topics/26?r=865#message-865">Forum</a>
+     *
+     * \param argument
+     * \param uc
+     * \return
+     */
+    template <class T> typename std::enable_if<std::is_base_of<CValueObject, T>::value, QDBusArgument>::type const &
+    operator>>(const QDBusArgument &argument, T &uc)
+    {
+        return argument >> static_cast<CValueObject &>(uc);
+    }
+
+    /*!
+     * Non-member non-friend operator for streaming T objects from QDBusArgument.
+     * Needed because we can't rely on the friend operator in some cases due to
+     * an unrelated template for streaming Container<T> in QtDBus/qdbusargument.h
+     * which matches more types than it can actually handle.
+     *
+     * <a href="https://dev.vatsim-germany.org/boards/15/topics/26?r=891#message-891">Forum</a>
+     * <a href="https://dev.vatsim-germany.org/boards/15/topics/26?r=865#message-865">Forum</a>
+     *
+     * \param argument
+     * \param uc
+     * \return
+     */
+    template <class T> typename std::enable_if<std::is_base_of<CValueObject, T>::value, QDBusArgument>::type &
+    operator<<(QDBusArgument &argument, const T &uc)
+    {
+        return argument << static_cast<CValueObject const &>(uc);
+    }
+
+} // namespace
+
+#endif // guard