diff --git a/gui/include/DataSource/DataSourceWidget.h b/gui/include/DataSource/DataSourceWidget.h
index ea3f2fa..e0634f7 100644
--- a/gui/include/DataSource/DataSourceWidget.h
+++ b/gui/include/DataSource/DataSourceWidget.h
@@ -17,6 +17,14 @@ class DataSourceWidget : public QWidget {
 public:
     explicit DataSourceWidget(QWidget *parent = 0);
 
+public slots:
+    /**
+     * Adds a data source. An item associated to the data source is created and then added to the
+     * representation tree
+     * @param dataSource the data source to add
+     */
+    void addDataSource(DataSourceItem &dataSource) noexcept;
+
 private:
     class DataSourceWidgetPrivate;
     spimpl::unique_impl_ptr<DataSourceWidgetPrivate> impl;
diff --git a/gui/src/DataSource/DataSourceWidget.cpp b/gui/src/DataSource/DataSourceWidget.cpp
index 5bba037..20e3014 100644
--- a/gui/src/DataSource/DataSourceWidget.cpp
+++ b/gui/src/DataSource/DataSourceWidget.cpp
@@ -13,6 +13,24 @@ const auto TREE_NB_COLUMNS = 1;
 /// Header labels for the tree
 const auto TREE_HEADER_LABELS = QStringList{QObject::tr("Name")};
 
+/**
+ * Creates the item associated to a data source
+ * @param dataSource the data source for which to create the item
+ * @return the new item
+ */
+DataSourceTreeWidgetItem *createTreeWidgetItem(DataSourceItem *dataSource)
+{
+    // Creates item for the data source
+    auto item = new DataSourceTreeWidgetItem{dataSource};
+
+    // Generates items for the children of the data source
+    for (auto i = 0; i < dataSource->childCount(); ++i) {
+        item->addChild(createTreeWidgetItem(dataSource->child(i)));
+    }
+
+    return item;
+}
+
 } // namespace
 
 class DataSourceWidget::DataSourceWidgetPrivate {
@@ -34,3 +52,10 @@ DataSourceWidget::DataSourceWidget(QWidget *parent)
         : QWidget{parent}, impl{spimpl::make_unique_impl<DataSourceWidgetPrivate>(*this)}
 {
 }
+
+void DataSourceWidget::addDataSource(DataSourceItem &dataSource) noexcept
+{
+    // Creates the item associated to the source and adds it to the tree widget. The tree widget
+    // takes the ownership of the item
+    impl->m_Ui->treeWidget->addTopLevelItem(createTreeWidgetItem(&dataSource));
+}