diff --git a/plugins/mockplugin/include/MockDefs.h b/plugins/mockplugin/include/MockDefs.h
new file mode 100644
index 0000000..02c23e6
--- /dev/null
+++ b/plugins/mockplugin/include/MockDefs.h
@@ -0,0 +1,23 @@
+#ifndef SCIQLOP_MOCKDEFS_H
+#define SCIQLOP_MOCKDEFS_H
+
+#include "MockPluginGlobal.h"
+
+#include <QString>
+#include <QVariant>
+
+// ////////////// //
+// Mock constants //
+// ////////////// //
+
+// Metadata for cosinus provider //
+
+/// Cosinus frequency (Hz)
+extern SCIQLOP_MOCKPLUGIN_EXPORT const QString COSINUS_FREQUENCY_KEY;
+extern SCIQLOP_MOCKPLUGIN_EXPORT const QVariant COSINUS_FREQUENCY_DEFAULT_VALUE;
+
+/// Cosinus type ("scalar" or "vector")
+extern SCIQLOP_MOCKPLUGIN_EXPORT const QString COSINUS_TYPE_KEY;
+extern SCIQLOP_MOCKPLUGIN_EXPORT const QVariant COSINUS_TYPE_DEFAULT_VALUE;
+
+#endif // SCIQLOP_MOCKDEFS_H
diff --git a/plugins/mockplugin/src/CosinusProvider.cpp b/plugins/mockplugin/src/CosinusProvider.cpp
index f5469cc..21c9151 100644
--- a/plugins/mockplugin/src/CosinusProvider.cpp
+++ b/plugins/mockplugin/src/CosinusProvider.cpp
@@ -1,4 +1,5 @@
 #include "CosinusProvider.h"
+#include "MockDefs.h"
 
 #include <Data/DataProviderParameters.h>
 #include <Data/ScalarSeries.h>
@@ -24,10 +25,17 @@ std::shared_ptr<IDataSeries> CosinusProvider::retrieveData(QUuid acqIdentifier,
     // TODO: Add Mutex
     auto dataIndex = 0;
 
+    // Retrieves frequency
+    auto freqVariant = data.value(COSINUS_FREQUENCY_KEY, COSINUS_FREQUENCY_DEFAULT_VALUE);
+    if (!freqVariant.canConvert<double>()) {
+        qCCritical(LOG_CosinusProvider()) << tr("Can't retrieve data: invalid frequency");
+        return nullptr;
+    }
+
     // Gets the timerange from the parameters
-    double freq = 100.0;
-    double start = std::ceil(dataRangeRequested.m_TStart * freq); // 100 htz
-    double end = std::floor(dataRangeRequested.m_TEnd * freq);    // 100 htz
+    double freq = freqVariant.toDouble();
+    double start = std::ceil(dataRangeRequested.m_TStart * freq);
+    double end = std::floor(dataRangeRequested.m_TEnd * freq);
 
     // We assure that timerange is valid
     if (end < start) {
diff --git a/plugins/mockplugin/src/MockDefs.cpp b/plugins/mockplugin/src/MockDefs.cpp
new file mode 100644
index 0000000..75d4574
--- /dev/null
+++ b/plugins/mockplugin/src/MockDefs.cpp
@@ -0,0 +1,7 @@
+#include "MockDefs.h"
+
+const QString COSINUS_FREQUENCY_KEY = QStringLiteral("cosinusFrequency");
+const QVariant COSINUS_FREQUENCY_DEFAULT_VALUE = 60.;
+
+const QString COSINUS_TYPE_KEY = QStringLiteral("cosinusType");
+const QVariant COSINUS_TYPE_DEFAULT_VALUE = QStringLiteral("scalar");
diff --git a/plugins/mockplugin/src/MockPlugin.cpp b/plugins/mockplugin/src/MockPlugin.cpp
index f11ebbd..916c3f1 100644
--- a/plugins/mockplugin/src/MockPlugin.cpp
+++ b/plugins/mockplugin/src/MockPlugin.cpp
@@ -1,5 +1,6 @@
 #include "MockPlugin.h"
 #include "CosinusProvider.h"
+#include "MockDefs.h"
 
 #include <DataSource/DataSourceController.h>
 #include <DataSource/DataSourceItem.h>
@@ -20,10 +21,11 @@ std::unique_ptr<IDataProvider> createDataProvider() noexcept
     return std::make_unique<CosinusProvider>();
 }
 
-std::unique_ptr<DataSourceItem> createProductItem(const QString &productName,
+std::unique_ptr<DataSourceItem> createProductItem(const QVariantHash &data,
                                                   const QUuid &dataSourceUid)
 {
-    auto result = std::make_unique<DataSourceItem>(DataSourceItemType::PRODUCT, productName);
+    auto result = std::make_unique<DataSourceItem>(DataSourceItemType::PRODUCT, data);
+    auto productName = data.value(DataSourceItem::NAME_DATA_KEY).toString();
 
     // Add action to load product from DataSourceController
     result->addAction(std::make_unique<DataSourceItemAction>(