diff --git a/plugins/advancedviewplugin/dialogs/timeassignmentdialog.cpp b/plugins/advancedviewplugin/dialogs/timeassignmentdialog.cpp
index 35d074a..13abd07 100644
--- a/plugins/advancedviewplugin/dialogs/timeassignmentdialog.cpp
+++ b/plugins/advancedviewplugin/dialogs/timeassignmentdialog.cpp
@@ -44,7 +44,7 @@ TimeAssignmentDialog::TimeAssignmentDialog(const QMap<QString, QString> &project
         ui->comboBoxWorkpackage->addItem(workpackage);
     ui->comboBoxWorkpackage->clearEditText();
 
-    for(const auto &text : settings.texte())
+    for(const auto &text : settings.texts())
         ui->comboBoxText->addItem(text);
     ui->comboBoxText->clearEditText();
 }
diff --git a/zeiterfassungcorelib/zeiterfassungsettings.cpp b/zeiterfassungcorelib/zeiterfassungsettings.cpp
index 0e9d5b2..42da8f2 100644
--- a/zeiterfassungcorelib/zeiterfassungsettings.cpp
+++ b/zeiterfassungcorelib/zeiterfassungsettings.cpp
@@ -1,5 +1,17 @@
 #include "zeiterfassungsettings.h"
 
+const QString ZeiterfassungSettings::m_language("language");
+const QString ZeiterfassungSettings::m_url("url");
+const QString ZeiterfassungSettings::m_username("username");
+const QString ZeiterfassungSettings::m_password("password");
+const QString ZeiterfassungSettings::m_projects("projects");
+const QString ZeiterfassungSettings::m_subprojects("subprojects");
+const QString ZeiterfassungSettings::m_workpackages("workpackages");
+const QString ZeiterfassungSettings::m_texts("texte");
+const QString ZeiterfassungSettings::m_theme("theme");
+const QLocale::Language ZeiterfassungSettings::m_defaultLanguage(QLocale::AnyLanguage);
+const QUrl ZeiterfassungSettings::m_defaultUrl(QStringLiteral("http://10.1.0.11:8080/evoApps/"));
+
 ZeiterfassungSettings::ZeiterfassungSettings(const QString &organization,
                                              const QString &application, QObject *parent) :
     QSettings(organization, application, parent)
@@ -34,121 +46,157 @@ ZeiterfassungSettings::ZeiterfassungSettings(QObject *parent) :
 
 QLocale::Language ZeiterfassungSettings::language() const
 {
-    return value(QStringLiteral("language"), QLocale::AnyLanguage).value<QLocale::Language>();
+    return value(m_language, m_defaultLanguage).value<QLocale::Language>();
 }
 
 void ZeiterfassungSettings::setLanguage(QLocale::Language language)
 {
-    setValue(QStringLiteral("language"), language);
+    if(this->language() != language)
+    {
+        setValue(m_language, language);
+        Q_EMIT languageChanged(language);
+    }
 }
 
 QUrl ZeiterfassungSettings::url() const
 {
-    return value(QStringLiteral("url"), QUrl(QStringLiteral("http://10.1.0.11:8080/evoApps/"))).toUrl();
+    return value(m_url, m_defaultUrl).toUrl();
 }
 
 void ZeiterfassungSettings::setUrl(const QUrl &url)
 {
-    setValue(QStringLiteral("url"), url);
+    if(this->url() != url)
+    {
+        setValue(m_url, url);
+        Q_EMIT urlChanged(url);
+    }
 }
 
 QString ZeiterfassungSettings::username() const
 {
-    return value(QStringLiteral("username")).toString();
+    return value(m_username).toString();
 }
 
 void ZeiterfassungSettings::setUsername(const QString &username)
 {
-    setValue(QStringLiteral("username"), username);
+    if(this->username() != username)
+    {
+        setValue(m_username, username);
+        Q_EMIT usernameChanged(username);
+    }
 }
 
 QString ZeiterfassungSettings::password() const
 {
-    return value(QStringLiteral("password")).toString();
+    return value(m_password).toString();
 }
 
 void ZeiterfassungSettings::setPassword(const QString &password)
 {
-    setValue(QStringLiteral("password"), password);
+    if(this->password() != password)
+    {
+        setValue(m_password, password);
+        Q_EMIT passwordChanged(password);
+    }
 }
 
 QStringList ZeiterfassungSettings::projects() const
 {
-    return value(QStringLiteral("projects")).toStringList();
+    return value(m_projects).toStringList();
 }
 
 void ZeiterfassungSettings::setProjects(const QStringList &projects)
 {
-    setValue(QStringLiteral("projects"), projects);
+    if(this->projects() != projects)
+    {
+        setValue(m_projects, projects);
+        Q_EMIT projectsChanged(projects);
+    }
 }
 
 void ZeiterfassungSettings::prependProject(const QString &project)
 {
-    prependItem(QStringLiteral("projects"), project);
+    setProjects(prependItem(projects(), project));
 }
 
 QStringList ZeiterfassungSettings::subprojects() const
 {
-    return value(QStringLiteral("subprojects")).toStringList();
+    return value(m_subprojects).toStringList();
 }
 
 void ZeiterfassungSettings::setSubprojects(const QStringList &subprojects)
 {
-    setValue(QStringLiteral("subprojects"), subprojects);
+    if(this->subprojects() != subprojects)
+    {
+        setValue(m_subprojects, subprojects);
+        Q_EMIT subprojectsChanged(subprojects);
+    }
 }
 
 void ZeiterfassungSettings::prependSubproject(const QString &subproject)
 {
-    prependItem(QStringLiteral("subprojects"), subproject);
+    setSubprojects(prependItem(subprojects(), subproject));
 }
 
 QStringList ZeiterfassungSettings::workpackages() const
 {
-    return value(QStringLiteral("workpackages")).toStringList();
+    return value(m_workpackages).toStringList();
 }
 
 void ZeiterfassungSettings::setWorkpackages(const QStringList &workpackages)
 {
-    setValue(QStringLiteral("workpackages"), workpackages);
+    if(this->workpackages() != workpackages)
+    {
+        setValue(m_workpackages, workpackages);
+        Q_EMIT workpackagesChanged(workpackages);
+    }
 }
 
 void ZeiterfassungSettings::prependWorkpackage(const QString &workpackage)
 {
-    prependItem(QStringLiteral("workpackages"), workpackage);
+    setWorkpackages(prependItem(workpackages(), workpackage));
 }
 
-QStringList ZeiterfassungSettings::texte() const
+QStringList ZeiterfassungSettings::texts() const
 {
-    return value(QStringLiteral("texte")).toStringList();
+    return value(m_texts).toStringList();
 }
 
-void ZeiterfassungSettings::setTexte(const QStringList &texte)
+void ZeiterfassungSettings::setTexts(const QStringList &texts)
 {
-    setValue(QStringLiteral("texte"), texte);
+    if(this->texts() != texts)
+    {
+        setValue(m_texts, texts);
+        Q_EMIT textsChanged(texts);
+    }
 }
 
 void ZeiterfassungSettings::prependText(const QString &text)
 {
-    prependItem(QStringLiteral("texte"), text);
+    setTexts(prependItem(texts(), text));
 }
 
 QString ZeiterfassungSettings::theme() const
 {
-    return value(QStringLiteral("theme")).toString();
+    return value(m_theme).toString();
 }
 
 void ZeiterfassungSettings::setTheme(const QString &theme)
 {
-    setValue(QStringLiteral("theme"), theme);
+    if(this->theme() != theme)
+    {
+        setValue(m_theme, theme);
+        Q_EMIT themeChanged(theme);
+    }
 }
 
-void ZeiterfassungSettings::prependItem(const QString &name, const QString &item)
+QStringList ZeiterfassungSettings::prependItem(QStringList list, const QString &item)
 {
     if(item.trimmed().isEmpty())
-        return;
+        return list;
 
-    auto entries = value(name).toStringList();
-    entries.removeAll(item);
-    entries.prepend(item);
-    setValue(name, entries);
+    list.removeAll(item);
+    list.prepend(item);
+
+    return list;
 }
diff --git a/zeiterfassungcorelib/zeiterfassungsettings.h b/zeiterfassungcorelib/zeiterfassungsettings.h
index 4ea1510..8b35a75 100644
--- a/zeiterfassungcorelib/zeiterfassungsettings.h
+++ b/zeiterfassungcorelib/zeiterfassungsettings.h
@@ -12,6 +12,15 @@
 class ZEITERFASSUNGCORELIBSHARED_EXPORT ZeiterfassungSettings : public QSettings
 {
     Q_OBJECT
+    Q_PROPERTY(QLocale::Language language READ language WRITE setLanguage NOTIFY languageChanged)
+    Q_PROPERTY(QUrl url READ url WRITE setUrl NOTIFY urlChanged)
+    Q_PROPERTY(QString username READ username WRITE setUsername NOTIFY usernameChanged)
+    Q_PROPERTY(QString password READ password WRITE setPassword NOTIFY passwordChanged)
+    Q_PROPERTY(QStringList projects READ projects WRITE setProjects NOTIFY projectsChanged)
+    Q_PROPERTY(QStringList subprojects READ subprojects WRITE setSubprojects NOTIFY subprojectsChanged)
+    Q_PROPERTY(QStringList workpackages READ workpackages WRITE setWorkpackages NOTIFY workpackagesChanged)
+    Q_PROPERTY(QStringList texts READ texts WRITE setTexts NOTIFY textsChanged)
+    Q_PROPERTY(QString theme READ theme WRITE setTheme NOTIFY themeChanged)
 
 public:
     explicit ZeiterfassungSettings(const QString &organization,
@@ -47,13 +56,36 @@ public:
     void setWorkpackages(const QStringList &workpackages);
     void prependWorkpackage(const QString &workpackage);
 
-    QStringList texte() const;
-    void setTexte(const QStringList &texte);
+    QStringList texts() const;
+    void setTexts(const QStringList &texts);
     void prependText(const QString &text);
 
     QString theme() const;
     void setTheme(const QString &theme);
 
+Q_SIGNALS:
+    void languageChanged(QLocale::Language language);
+    void urlChanged(const QUrl &url);
+    void usernameChanged(const QString &username);
+    void passwordChanged(const QString &password);
+    void projectsChanged(const QStringList &projects);
+    void subprojectsChanged(const QStringList &subprojects);
+    void workpackagesChanged(const QStringList &workpackages);
+    void textsChanged(const QStringList &texts);
+    void themeChanged(const QString &theme);
+
 private:
-    void prependItem(const QString &name, const QString &item);
+    QStringList prependItem(QStringList list, const QString &item);
+
+    static const QString m_language;
+    static const QString m_url;
+    static const QString m_username;
+    static const QString m_password;
+    static const QString m_projects;
+    static const QString m_subprojects;
+    static const QString m_workpackages;
+    static const QString m_texts;
+    static const QString m_theme;
+    static const QLocale::Language m_defaultLanguage;
+    static const QUrl m_defaultUrl;
 };
diff --git a/zeiterfassungguilib/mainwindow.cpp b/zeiterfassungguilib/mainwindow.cpp
index df471f6..01ea863 100644
--- a/zeiterfassungguilib/mainwindow.cpp
+++ b/zeiterfassungguilib/mainwindow.cpp
@@ -458,7 +458,7 @@ void MainWindow::updateComboboxes()
     ui->comboBoxText->clear();
 
     {
-        auto texte = m_settings.texte();
+        auto texte = m_settings.texts();
         for(const auto &text : texte)
             ui->comboBoxText->addItem(text);
         if(texte.count())