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diff --git a/modules/CIAO/ciao/Deployment_Events.idl b/modules/CIAO/ciao/Deployment_Events.idl
new file mode 100644
index 00000000000..b0559dfe164
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+++ b/modules/CIAO/ciao/Deployment_Events.idl
@@ -0,0 +1,95 @@
+// $Id$
+
+/**
+ * @file Deployment_Events.idl
+ *
+ * @brief A collection of IDL data types for CIAO pub/sub services deployment.
+ *
+ * @author Gan Deng
+ */
+
+#if !defined (CIAO_DEPLOYMENT_EVENT_SERVICES_IDL)
+#define CIAO_DEPLOYMENT_EVENT_SERVICES_IDL
+
+#include "tao/StringSeq.pidl"
+
+// EventServiceType definition
+#include <ciaosvcs/Events/CIAO_Events_Base/CIAO_Events.idl>
+
+module CIAO
+{
+  module DAnCE
+  {
+    /// Each element in the EventSourceSet denotes a event source id
+    typedef string EventSourceId;
+
+    typedef sequence<EventSourceId> EventSourceSet;
+
+    /// Event Filters
+    enum FilterType
+    {
+      CONJUNCTION,
+      DISJUNCTION,
+      LOGICAL_AND,
+      NEGATE
+    };
+
+    struct EventFilter
+    {
+      string name;
+      FilterType type;
+      EventSourceSet sources;
+    };
+    typedef sequence<EventFilter> EventFilters;
+
+    struct AddrServer
+    {
+      string name;
+      unsigned short port;
+      string address;
+    };
+    typedef sequence<AddrServer> AddrServers;
+
+    struct UDPSender
+    {
+      string name;
+      string addr_serv_id;
+    };
+    typedef sequence<UDPSender> UDPSenders;
+
+    struct UPDReceiver
+    {
+      string name;
+      string addr_serv_id;
+      boolean is_multicast;
+      unsigned short listen_port;
+    };
+    typedef sequence<UPDReceiver> UPDReceivers;
+/*
+    struct EventHandler
+    {
+      string name;
+      boolean is_multicast;
+    };
+    typedef sequence<EventHandler> EventHandlers;
+    */
+
+    /// CIAO specific extension to describe pub/sub services in the deployment
+    struct EventServiceDeploymentDescription
+    {
+      string name;
+      string node;
+      EventServiceType type;
+      string svc_cfg_file;
+
+      EventFilters filters;
+      AddrServers addr_servs;
+      UDPSenders senders;
+      UPDReceivers receivers;
+    };
+    typedef sequence < EventServiceDeploymentDescription >
+      EventServiceDeploymentDescriptions;
+  };
+};
+
+#endif /* CIAO_DEPLOYMENT_EVENT_SERVICES_IDL */