diff --git a/Participant.cpp b/Participant.cpp
index 53ee6d4..e423608 100644
--- a/Participant.cpp
+++ b/Participant.cpp
@@ -6,8 +6,6 @@ namespace RoboidControl {
 
 std::list<Participant*> Participant::participants;
 
-Participant::Participant() {}
-
 Participant::Participant(const char* ipAddress, int port) {
   // make a copy of the ip address string
   int addressLength = (int)strlen(ipAddress);
diff --git a/Participant.h b/Participant.h
index de9a66a..2facd6b 100644
--- a/Participant.h
+++ b/Participant.h
@@ -13,60 +13,56 @@ constexpr int MAX_THING_COUNT = 256;
 /// reference to remote participants.
 class Participant {
  public:
-  /// @brief The Ip Address of a participant. When the participant is local,
-  /// this contains 0.0.0.0
+  /// @brief The Ip Address of a participant.
   const char* ipAddress = "0.0.0.0";
-  /// @brief The port number for UDP communication with the participant. This is
-  /// 0 for isolated participants.
+  /// @brief The port number for UDP communication with the participant.
   unsigned int port = 0;
 
-  /// @brief The network Id to identify the participant.
-  /// @note This field is likely to disappear in future versions
+  /// @brief The network Id to identify the participant
   unsigned char networkId = 0;
 
-  /// @brief Default constructor
-  Participant();
   /// @brief Create a new participant with the given communcation info
   /// @param ipAddress The IP address of the participant
-  /// @param port The port of the participant
+  /// @param port The UDP port of the participant
   Participant(const char* ipAddress, int port);
   /// @brief Destructor for the participant
   ~Participant();
 
-  virtual void Update(unsigned long currentTimeMs = 0);
-
  public:
 #if defined(NO_STD)
   unsigned char thingCount = 0;
   Thing* things[MAX_THING_COUNT];
 #else
-  /// @brief The list of known participants
-  static std::list<Participant*> participants;
-
-  /// @brief The list of things managed by this participant
+  /// @brief  The things managed by this participant
   std::list<Thing*> things;
 #endif
+  /// @brief Find a thing managed by this participant
+  /// @param thingId The ID of the thing
+  /// @return The thing if found, nullptr when no thing has been found
+  Thing* Get(unsigned char thingId);
+  /// @brief Add a new thing for this participant.
+  /// @param thing The thing to add
+  /// @param checkId If true, the thing.id is regenerated if it is zero
+  void Add(Thing* thing, bool checkId = true);
+  /// @brief Remove a thing for this participant
+  /// @param thing The thing to remove
+  void Remove(Thing* thing);
+
+  /// @brief Update all things for this participant
+  /// @param currentTimeMs The current time in milliseconds (optional)
+  virtual void Update(unsigned long currentTimeMs = 0);
 
  public:
+#if defined(NO_STD)
+#else
+  /// @brief The list of known participants
+  static std::list<Participant*> participants;
+#endif
   static Participant* GetParticipant(const char* ipAddress, unsigned int port);
   static Participant* GetParticipant(unsigned char participantId);
   static Participant* AddParticipant(const char* ipAddress, unsigned int port);
   static void AddParticipant(Participant* participant);
 
-  /// @brief Find a thing managed by this participant
-  /// @param networkId The network ID for the thing
-  /// @param thingId The ID of the thing
-  /// @return The thing if found or nullptr when no thing has been found
-  /// @note The use of the network ID is likely to disappear in future versions.
-  Thing* Get(unsigned char thingId);
-  /// @brief Add a new thing for this participant.
-  /// @param thing The thing to add
-  /// @param checkId Checks the thing ID of the thing. If it is 0, a new thing
-  /// Id will be assigned.
-  void Add(Thing* thing, bool checkId = true);
-  /// @brief Remove a thing for this participant
-  /// @param thing The thing to remove
-  void Remove(Thing* thing);
 };
 
 }  // namespace RoboidControl