diff --git a/TestON/JenkinsFile/SRJenkinsFile b/TestON/JenkinsFile/SRJenkinsFile
index c9c00e5..bc2ac39 100644
--- a/TestON/JenkinsFile/SRJenkinsFile
+++ b/TestON/JenkinsFile/SRJenkinsFile
@@ -1,25 +1,57 @@
+// Copyright 2017 Open Networking Foundation (ONF)
+//
+// Please refer questions to either the onos test mailing list at <onos-test@onosproject.org>,
+// the System Testing Plans and Results wiki page at <https://wiki.onosproject.org/x/voMg>,
+// or the System Testing Guide page at <https://wiki.onosproject.org/x/WYQg>
+//
+//     TestON is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General Public License as published by
+//     the Free Software Foundation, either version 2 of the License, or
+//     (at your option) any later version.
+//
+//     TestON is distributed in the hope that it will be useful,
+//     but WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//     GNU General Public License for more details.
+//
+//     You should have received a copy of the GNU General Public License
+//     along with TestON.  If not, see <http://www.gnu.org/licenses/>.
+
+// This is the Jenkins script for SR-pipeline-<branch>
+
 #!groovy
+
+// read dependencies.
 funcs = evaluate readTrusted( 'TestON/JenkinsFile/dependencies/JenkinsCommonFuncs.groovy' )
 test_lists = evaluate readTrusted( 'TestON/JenkinsFile/dependencies/JenkinsTestONTests.groovy' )
 fileRelated = evaluate readTrusted( 'TestON/JenkinsFile/dependencies/JenkinsPathAndFiles.groovy' )
 
+// init configuratin to be SR
 fileRelated.init()
 funcs.initialize( "SR" );
+
+// get the name of the Jenkins job.
 jobName = env.JOB_NAME
+
+// additional setup for Segment routing because it is running multiple branch concurrently on different machines.
 funcs.additionalInitForSR( jobName )
-// This is a Jenkinsfile for a scripted pipeline for the SR tests
+
+// read the TestON.property depends on which branch it is running. ( currently 1.13 and master on Fabric2, 1.12 on Fabric3 )
 def prop = null
 prop = funcs.getProperties()
 SR = test_lists.getAllTheTests( prop[ "WikiPrefix" ] )[ "SR" ]
 
+// set the file paths and directory
 graph_generator_file = fileRelated.trendIndividual
 graph_saved_directory = fileRelated.jenkinsWorkspace + "postjob-Fabric" + funcs.fabricOn( prop[ "ONOSBranch" ] ) + "/"
 
+// get the list of the tests.
 echo( "Testcases:" )
 def testsToRun = null
 testsToRun = funcs.getTestsToRun( prop[ "Tests" ] )
 funcs.printTestToRun( testsToRun )
 
+// save the functions to run test in the dictionary.
 def tests = [:]
 for( String test : SR.keySet() ){
     toBeRun = testsToRun.contains( test )
@@ -27,10 +59,13 @@
     tests[stepName] = funcs.runTest( test, toBeRun, prop, test, false, SR, graph_generator_file, graph_saved_directory )
 }
 
+// get start time
 start = funcs.getCurrentTime()
-// run the tests
+
+// run the tests sequentially
 for ( test in tests.keySet() ){
     tests[ test ].call()
 }
 //funcs.generateOverallGraph( prop, SR, graph_saved_directory )
+// send the notification of ending test after SR tests is done.
 funcs.sendResultToSlack( start,  prop[ "manualRun" ], prop[ "WikiPrefix" ] )