diff --git a/UpdatePTUDevCtrl/work_process_list.cpp b/UpdatePTUDevCtrl/work_process_list.cpp
new file mode 100644
index 0000000..5955afc
--- /dev/null
+++ b/UpdatePTUDevCtrl/work_process_list.cpp
@@ -0,0 +1,32 @@
+#include "work_process_list.h"
+#include "process/update_command.h"
+
+#include <limits>
+#include <QDebug>
+
+unsigned WorkList::nextExecIndex() const {
+    if (m_workList.size() > 0 && m_workListIndex < (m_workList.size() - 1)) {
+        return m_workListIndex + 1;
+    }
+    return std::numeric_limits<unsigned>::max();
+}
+
+bool WorkList::nextExec() const {
+    return m_workListIndex < m_workList.size();
+}
+
+bool WorkList::exec(bool last) {
+    if (last == false) {
+        if (nextExec()) {
+            m_workList[m_workListIndex]->start("/opt/app/tools/atbupdate");
+            m_workListIndex += 1;
+            return true;
+        }
+    } else {
+        m_workList.back()->start("/opt/app/tools/atbupdate");
+        m_workListIndex = std::numeric_limits<unsigned>::max();
+        return true;
+    }
+
+    return false;
+}
diff --git a/UpdatePTUDevCtrl/work_process_list.h b/UpdatePTUDevCtrl/work_process_list.h
new file mode 100644
index 0000000..974e2c1
--- /dev/null
+++ b/UpdatePTUDevCtrl/work_process_list.h
@@ -0,0 +1,36 @@
+#ifndef WORK_LIST_H_INCLUDED
+#define WORK_LIST_H_INCLUDED
+
+#include <vector>
+#include <memory>
+
+class UpdateCommand;
+class WorkList {
+public:
+    std::vector<std::unique_ptr<UpdateCommand>> m_workList;
+    unsigned m_workListIndex{0};
+
+    WorkList() = default;
+
+    template<typename T>
+    void push_back(T&& arg) {
+        m_workList.push_back(std::forward<T>(arg));
+    }
+
+    bool empty() const { return m_workList.empty(); }
+
+    // move constructor: pass in classes derived from UpdateCommand
+    // template<typename... Ts>
+             //typename = typename std::enable_if<std::is_same<typename std::decay<Ts...>::type,
+             //                                   UpdateCommand>::value>::type>
+    // WorkList(Ts&&... args)
+    //  : m_workList(std::forward<Ts...>(args...))
+    //  , m_workListIndex(0) {
+    //}
+
+    unsigned nextExecIndex() const;
+    bool nextExec() const;
+    bool exec(bool last=false);
+};
+
+#endif // WORK_LIST_H_INCLUDED