urlpatterns = patterns('',
                        url(r'^openoapi/vnflcm/v1/vnf_instances$', CreateVnfIdentifier.as_view()),
-                       url(r'^openoapi/vnflcm/v1/vnf_instances/(?P<instanceId>[0-9a-zA-Z_-]+)/instantiate$',
+                       url(r'^openoapi/vnflcm/v1/vnf_instances/(?P<instanceid>[0-9a-zA-Z_-]+)/instantiate$',
                            InstantiateVnf.as_view()),
-                       url(r'^openoapi/vnflcm/v1/vnf_instances/(?P<instanceId>[0-9a-zA-Z_-]+)$',
+                       url(r'^openoapi/vnflcm/v1/vnf_instances/(?P<instanceid>[0-9a-zA-Z_-]+)$',
                            DeleteVnfIdentifier.as_view()),
-                       url(r'^openoapi/vnflcm/v1/vnf_instances/(?P<instanceId>[0-9a-zA-Z_-]+)/terminate$',
+                       url(r'^openoapi/vnflcm/v1/vnf_instances/(?P<instanceid>[0-9a-zA-Z_-]+)/terminate$',
                            TerminateVnf.as_view()),
                        url(r'^openoapi/vnflcm/v1/vnf_instances$', QueryMultipleVnf.as_view()),
-                       url(r'^openoapi/vnflcm/v1/vnf_instances/(?P<instanceId>[0-9a-zA-Z_-]+)$',
+                       url(r'^openoapi/vnflcm/v1/vnf_instances/(?P<instanceid>[0-9a-zA-Z_-]+)$',
                            QuerySingleVnf.as_view()),
                        url(r'^openoapi/vnflcm/v1/vnf_lc_ops/(?P<vnfLcOpId>[0-9a-zA-Z_-]+)&'
                            r'responseId=(?P<responseId>[0-9a-zA-Z_-]+)$', GetOperationStatus.as_view()),
 
 
 
 class InstantiateVnf(APIView):
-    def post(self, request, instanceId):
+    def post(self, request, instanceid):
         logger.debug("InstantiateVnf--post::> %s" % request.data)
-        job_id = JobUtil.create_job('NF', 'INSTANTIATE', instanceId)
+        job_id = JobUtil.create_job('NF', 'INSTANTIATE', instanceid)
         JobUtil.add_job_status(job_id, 0, "INST_VNF_READY")
-        InstVnf(request.data, instanceId, job_id).start()
+        InstVnf(request.data, instanceid, job_id).start()
         rsp = {"jobId": job_id}
         return Response(data=rsp, status=status.HTTP_202_ACCEPTED)
 
 
 class DeleteVnfIdentifier(APIView):
-    def delete(self, request, instanceId):
+    def delete(self, request, instanceid):
         logger.debug("DeleteVnfIdentifier--delete::> %s" % request.data)
         try:
-            DeleteVnf(request.data, instanceId).do_biz()
+            DeleteVnf(request.data, instanceid).do_biz()
         except NFLCMException as e:
             logger.error(e.message)
             return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 
 
 
 class DeleteVnf:
-    def __init__(self, data, instanceId):
+    def __init__(self, data, instanceid):
         self.data = data
-        self.nf_inst_id = instanceId
+        self.nf_inst_id = instanceid
 
     def do_biz(self):
         sel_vnfs = NfInstModel.objects.filter(pk=self.nf_inst_id)