diff --git a/libs/libnamemanager/src/base/module_name_map.cpp b/libs/libnamemanager/src/base/module_name_map.cpp
new file mode 100644
index 000000000..bcb1c23c2
--- /dev/null
+++ b/libs/libnamemanager/src/base/module_name_map.cpp
@@ -0,0 +1,50 @@
+/******************************************************************************
+ * Memember functions for data structure ModuleNameMap
+ ******************************************************************************/
+/* Headers from vtrutil library */
+#include "module_name_map.h"
+
+#include <algorithm>
+
+#include "command_exit_codes.h"
+#include "vtr_assert.h"
+#include "vtr_log.h"
+#include "vtr_time.h"
+
+/* begin namespace openfpga */
+namespace openfpga {
+
+/**************************************************
+ * Public Accessors
+ *************************************************/
+std::string ModuleNameMap::name(const std::string& tag) const {
+  auto result = tag2names_.find(tag);
+  if (result == tag2names_.end()) {
+	VTR_LOG_ERROR("The given built-in name '%s' does not exist!\n", tag.c_str());
+    return std::string();
+  }
+  return result->second;
+}
+
+int ModuleNameMap::set_tag_to_name_pair(const std::string& tag, const std::string& name) {
+  /*  tagA <--x--> nameA
+   *        | 
+   *        +----> nameB
+   *  tagB <--x--> nameB
+   * Scenarios to be considered:
+   * - Remove the double links between tagA and nameA
+   * - nameB should NOT be mapped to any other tags!
+   */
+  auto result = name2tags_.find(name);
+  if (result != name2tags_.end() && result->second != tag) {
+	VTR_LOG_ERROR("The customized name '%s' has already been mapped to a built-in name '%s'! Fail to bind it to a new built-in name '%s'\n", name.c_str(), result->second.c_str(), tag.c_str());
+    return CMD_EXEC_FATAL_ERROR;
+  }
+  /* Create double link */
+  name2tags_[name] = tag;
+  tag2names_[tag] = name;
+  /* Clean up */
+  name2tags_.erase(name);
+}
+
+} /* end namespace openfpga */
diff --git a/libs/libnamemanager/src/base/module_name_map.h b/libs/libnamemanager/src/base/module_name_map.h
new file mode 100644
index 000000000..d2c921b81
--- /dev/null
+++ b/libs/libnamemanager/src/base/module_name_map.h
@@ -0,0 +1,34 @@
+#ifndef MODULE_NAME_MAP_H
+#define MODULE_NAME_MAP_H
+
+/********************************************************************
+ * Include header files required by the data structure definition
+ *******************************************************************/
+#include <string>
+#include <map>
+
+/* Begin namespace openfpga */
+namespace openfpga {
+
+/**
+ * @brief Module name map is a data structure to show mapping between a tag (built-in name) and customized names (may be given by users)
+ */
+class ModuleNameMap {
+ public: /* Public accessors */
+  /** @brief Get customized name with a given tag */
+  std::string name(const std::string& tag) const;
+
+ public: /* Public mutators */
+  /** @brief Create the one-on-one mapping between an built-in name and a customized name. Return 0 for success, return 1 for fail */
+  int set_tag_to_name_pair(const std::string& tag, const std::string& name);
+ private: /* Internal Data */
+  /* built-in name -> customized_name
+   * Create a double link to check any customized name is mapped to more than 1 built-in name!
+   */
+  std::map<std::string, std::string> tag2names_;
+  std::map<std::string, std::string> name2tags_;
+};
+
+} /* End namespace openfpga*/
+
+#endif