diff --git a/Tutorials/PWGLF/Strangeness/Original/CMakeLists.txt b/Tutorials/PWGLF/Strangeness/Original/CMakeLists.txt
index f46ac1f9e0b..2c0360b05d6 100644
--- a/Tutorials/PWGLF/Strangeness/Original/CMakeLists.txt
+++ b/Tutorials/PWGLF/Strangeness/Original/CMakeLists.txt
@@ -10,6 +10,11 @@
 # or submit itself to any jurisdiction.
 
 # Strangeness analysis tutorial
+o2physics_add_dpl_workflow(strangeness-skeleton
+                  SOURCES strangeness_skeleton.cxx
+                  PUBLIC_LINK_LIBRARIES O2Physics::AnalysisCore
+                  COMPONENT_NAME AnalysisTutorial)
+
 o2physics_add_dpl_workflow(strangeness-step0
                   SOURCES strangeness_step0.cxx
                   PUBLIC_LINK_LIBRARIES O2Physics::AnalysisCore
diff --git a/Tutorials/PWGLF/Strangeness/Original/configuration_skeleton.json b/Tutorials/PWGLF/Strangeness/Original/configuration_skeleton.json
new file mode 100644
index 00000000000..f770087747e
--- /dev/null
+++ b/Tutorials/PWGLF/Strangeness/Original/configuration_skeleton.json
@@ -0,0 +1,582 @@
+{
+    "track-selection": {
+        "ptMax": "1e+10",
+        "produceTable": "-1",
+        "etaMin": "-1",
+        "isRun3": "1",
+        "itsMatching": "1",
+        "etaMax": "1",
+        "compatibilityIU": "0",
+        "dcaSetup": "0",
+        "ptMin": "0.1",
+        "produceFBextendedTable": "-1"
+    },
+    "ft0-corrected-table": {
+        "ccdb-timestamp": "-1",
+        "resoFT0C": "20",
+        "ccdb-path-grplhcif": "GLO/Config/GRPLHCIF",
+        "resoFT0A": "20",
+        "collisionSystem": "-2",
+        "addHistograms": "0",
+        "ccdb-url": "http://alice-ccdb.cern.ch",
+        "processWithBypassFT0timeInMC": "0",
+        "processStandard": "1"
+    },
+    "mult-cent-table": {
+        "generatorName": "",
+        "processRun3WithGlobalCounters": "0",
+        "processMFT": "0",
+        "processRun3": "1",
+        "processCentralityRun2": "0",
+        "processRun2": "0",
+        "processMonteCarlo2Mults": "0",
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+        "doVertexZeq": "1",
+        "ccdbPathVtxZ": "Centrality/Calibration",
+        "minNclsITSibGlobalTrack": "1",
+        "reconstructionPass": "",
+        "ccdburl": "http://alice-ccdb.cern.ch",
+        "processCentralityRun3": "1",
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+    },
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+        "evselOpts.amIneeded": "-1",
+        "evselOpts.EpsilonVzDiffVetoInROF": "0.3",
+        "evselOpts.isMC": "-1",
+        "bcselOpts.ITSROFrameStartBorderMargin": "-1",
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+        "bcselOpts.TimeFrameStartBorderMargin": "-1",
+        "bcselOpts.triggerBcShift": "0",
+        "evselOpts.FT0CamplPerCollCutVetoOnCollInROF": "5000",
+        "timestamp.orbit-reset-path": "CTP/Calib/OrbitReset",
+        "evselOpts.TimeIntervalForOccupancyCalculationMin": "-40",
+        "evselOpts.TimeRangeVetoOnCollStrict": "10",
+        "timestamp.rct-path": "RCT/Info/RunInformation",
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+        "ccdburl": "http://alice-ccdb.cern.ch",
+        "evselOpts.muonSelection": "0",
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+        "timestamp.verbose": "0",
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+        "pidTPC.networkPathLocally": "network.onnx",
+        "processTracksIUWithTracksQA": "0",
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+        "pidTPC.recoPass": "",
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+        "pidTPC.useCorrecteddEdx": "0",
+        "pidTPC.networkSetNumThreads": "0",
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+        "pidTPC.networkBetaGammaCutoff": "0.45",
+        "pidTPC.devicesRequiringTPCOnlyPID": {
+            "values": [
+                "photon-conversion-builder"
+            ]
+        },
+        "pidTPC.useNetworkCorrection": "1",
+        "ccdburl": "http://alice-ccdb.cern.ch",
+        "pidTPC.savedEdxsCorrected": "-1",
+        "processTracksMCIU": "0"
+    },
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+        "processMonteCarloWithPID": "0",
+        "cascadeBuilderOpts.minCrossedRows": "-1",
+        "preSelectOpts.preselectOnlyDesiredCascades": "1",
+        "v0BuilderOpts.mc_addGeneratedGammaMakeCollinear": "1",
+        "cascadeBuilderOpts.maxDaughterEta": "1.5",
+        "ccdb.lutPath": "GLO/Param/MatLUTInner",
+        "v0BuilderOpts.mc_addGeneratedK0Short": "0",
+        "cascadeBuilderOpts.dcabachtopv": "0.05",
+        "trackTuner.updateTrackCovMat": "0",
+        "cascadeBuilderOpts.useCascadeMomentumAtPrimVtx": "0",
+        "cascadeBuilderOpts.mc_addGeneratedOmegaPlus": "0",
+        "cascadeBuilderOpts.kfUseV0MassConstraint": "1",
+        "trackPropagation.fillTrackTunerTable": "0",
+        "v0BuilderOpts.v0radius": "0.9",
+        "cascadeBuilderOpts.kfConstructMethod": "2",
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+        "cascadeBuilderOpts.casccospa": "0.97",
+        "cascadeBuilderOpts.mc_addGeneratedOmegaMinus": "0",
+        "preSelectOpts.lifetimeCut": {
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+                [
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+        "ccdb.mVtxPath": "GLO/Calib/MeanVertex",
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+        "preSelectOpts.preselectOnlyDesiredV0s": "1",
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+        "v0BuilderOpts.minCrossedRows": "-1",
+        "processRealDataWithPID": "1",
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+        "cascadeBuilderOpts.mc_treatPiToMuDecays": "1",
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+        "preSelectOpts.massWindownumberOfSigmas": "20",
+        "trackTuner.usePvRefitCorrections": "0",
+        "v0BuilderOpts.mc_addGeneratedGamma": "0",
+        "v0BuilderOpts.moveTPCOnlyTracks": "1",
+        "ccdb.ccdb-url": "http://alice-ccdb.cern.ch",
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+        "ccdb.grpmagPath": "GLO/Config/GRPMagField",
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+        "cascadeBuilderOpts.mc_populateCascMCCoresAsymmetric": "0",
+        "v0BuilderOpts.mc_findableDetachedV0": "0",
+        "trackPropagation.useTrkPid": "0",
+        "trackTuner.nameFileQoverPt": "",
+        "cascadeBuilderOpts.kfUseCascadeMassConstraint": "0",
+        "trackTuner.qOverPtData": "-1",
+        "v0BuilderOpts.mc_treatPiToMuDecays": "1",
+        "trackTuner.debugInfo": "0",
+        "trackPropagation.minPropagationDistance": "5",
+        "ccdburl": "http://alice-ccdb.cern.ch",
+        "cascadeBuilderOpts.mc_keepOnlyPhysicalPrimary": "0",
+        "cascadeBuilderOpts.mc_addGeneratedXiMinus": "0",
+        "mc_findableMode": "0"
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+    "strangeness_tutorial": {
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+}
diff --git a/Tutorials/PWGLF/Strangeness/Original/configuration_step1.json b/Tutorials/PWGLF/Strangeness/Original/configuration_step1.json
index bca1d319025..9ee497ae15f 100644
--- a/Tutorials/PWGLF/Strangeness/Original/configuration_step1.json
+++ b/Tutorials/PWGLF/Strangeness/Original/configuration_step1.json
@@ -579,9 +579,9 @@
         "nBins": "100",
         "cutzvertex": "10",
         "v0setting_dcav0dau": "1",
-        "v0setting_dcapostopv": "0.0599999987",
-        "v0setting_dcanegtopv": "0.0599999987",
-        "v0setting_cospa": "0.97999999999999998",
-        "v0setting_radius": "0.5"
+        "v0setting_dcapostopv": "0.06",
+        "v0setting_dcanegtopv": "0.06",
+        "v0setting_cospa": "0.998",
+        "v0setting_radius": "1.2"
     }
 }
diff --git a/Tutorials/PWGLF/Strangeness/Original/configuration_step2.json b/Tutorials/PWGLF/Strangeness/Original/configuration_step2.json
index 598f51a3b96..a1b124d0ae7 100644
--- a/Tutorials/PWGLF/Strangeness/Original/configuration_step2.json
+++ b/Tutorials/PWGLF/Strangeness/Original/configuration_step2.json
@@ -579,10 +579,10 @@
         "nBins": "100",
         "cutzvertex": "10",
         "v0setting_dcav0dau": "1",
-        "v0setting_dcapostopv": "0.0599999987",
-        "v0setting_dcanegtopv": "0.0599999987",
-        "v0setting_cospa": "0.97999999999999998",
-        "v0setting_radius": "0.5",
+        "v0setting_dcapostopv": "0.06",
+        "v0setting_dcanegtopv": "0.06",
+        "v0setting_cospa": "0.998",
+        "v0setting_radius": "1.2",
         "NSigmaTPCPion": "4"
     }
 }
diff --git a/Tutorials/PWGLF/Strangeness/Original/configuration_step3.json b/Tutorials/PWGLF/Strangeness/Original/configuration_step3.json
index ba83d242dd1..e5657b368af 100644
--- a/Tutorials/PWGLF/Strangeness/Original/configuration_step3.json
+++ b/Tutorials/PWGLF/Strangeness/Original/configuration_step3.json
@@ -587,10 +587,10 @@
         "nBins": "100",
         "cutzvertex": "10",
         "v0setting_dcav0dau": "1",
-        "v0setting_dcapostopv": "0.0599999987",
-        "v0setting_dcanegtopv": "0.0599999987",
-        "v0setting_cospa": "0.97999999999999998",
-        "v0setting_radius": "0.5",
+        "v0setting_dcapostopv": "0.06",
+        "v0setting_dcanegtopv": "0.06",
+        "v0setting_cospa": "0.998",
+        "v0setting_radius": "1.2",
         "NSigmaTPCPion": "4",
         "processRecMC": "true",
         "processGenMC": "true"
diff --git a/Tutorials/PWGLF/Strangeness/Original/configuration_step4.json b/Tutorials/PWGLF/Strangeness/Original/configuration_step4.json
index ba83d242dd1..cdaf9f5a4ef 100644
--- a/Tutorials/PWGLF/Strangeness/Original/configuration_step4.json
+++ b/Tutorials/PWGLF/Strangeness/Original/configuration_step4.json
@@ -587,10 +587,18 @@
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         "v0setting_dcav0dau": "1",
-        "v0setting_dcapostopv": "0.0599999987",
-        "v0setting_dcanegtopv": "0.0599999987",
-        "v0setting_cospa": "0.97999999999999998",
-        "v0setting_radius": "0.5",
+        "v0setting_dcapostopv": "0.06",
+        "v0setting_dcanegtopv": "0.06",
+        "v0setting_cospa": "0.998",
+        "v0setting_radius": "1.2",
+        "cascadesetting_cospa": "0.998",
+        "cascadesetting_dcacascdau": "1",
+        "cascadesetting_dcabachtopv": "0.06",
+        "cascadesetting_mindcav0topv": "1",
+        "cascadesetting_cascradius": "0.5",
+        "cascadesetting_v0masswindow": "0.010",
+        "dcanegtopv": "0.06",
+        "dcapostopv": "0.06",
         "NSigmaTPCPion": "4",
         "processRecMC": "true",
         "processGenMC": "true"
diff --git a/Tutorials/PWGLF/Strangeness/Original/run_skeleton.sh b/Tutorials/PWGLF/Strangeness/Original/run_skeleton.sh
new file mode 100644
index 00000000000..b96bb4e4990
--- /dev/null
+++ b/Tutorials/PWGLF/Strangeness/Original/run_skeleton.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+# log file where the terminal output will be saved
+STEP="skeleton"
+LOGFILE="log-STEP${STEP}.txt"
+
+#directory of this script
+DIR_THIS=$PWD
+
+OPTION="-b --configuration json://configuration_skeleton.json"
+
+o2-analysis-trackselection ${OPTION} |
+o2-analysis-ft0-corrected-table ${OPTION} |
+o2-analysis-multcenttable ${OPTION} |
+o2-analysis-event-selection-service ${OPTION} |
+o2-analysis-pid-tpc-service ${OPTION} |
+o2-analysis-propagationservice ${OPTION} |
+o2-analysistutorial-lf-strangeness-skeleton ${OPTION} --aod-file @input_data.txt > "$LOGFILE" 2>&1
+
+# report status
+rc=$?
+if [ $rc -eq 0 ]; then
+    echo "No problems!"
+    mkdir -p "${DIR_THIS}/results/step${STEP}"
+    mv AnalysisResults.root "${DIR_THIS}/results/step${STEP}/AnalysisResults.root"
+    mv dpl-config.json "${DIR_THIS}/results/step${STEP}/step${STEP}.json"
+else
+    echo "Error: Exit code ${rc}"
+    echo "Check the log file ${LOGFILE}"
+    exit ${rc}
+fi
\ No newline at end of file
diff --git a/Tutorials/PWGLF/Strangeness/Original/strangeness_skeleton.cxx b/Tutorials/PWGLF/Strangeness/Original/strangeness_skeleton.cxx
new file mode 100644
index 00000000000..761da227e3c
--- /dev/null
+++ b/Tutorials/PWGLF/Strangeness/Original/strangeness_skeleton.cxx
@@ -0,0 +1,63 @@
+// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
+// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
+// All rights not expressly granted are reserved.
+//
+// This software is distributed under the terms of the GNU General Public
+// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
+//
+// In applying this license CERN does not waive the privileges and immunities
+// granted to it by virtue of its status as an Intergovernmental Organization
+// or submit itself to any jurisdiction.
+///
+/// \brief this is a starting point for the Strangeness tutorial
+/// \author Nepeivoda Roman (roman.nepeivoda@cern.ch)
+/// \author Chiara De Martin (chiara.de.martin@cern.ch)
+
+#include "PWGLF/DataModel/LFStrangenessTables.h"
+
+#include "Common/DataModel/EventSelection.h"
+
+#include "Framework/AnalysisTask.h"
+#include "Framework/runDataProcessing.h"
+
+using namespace o2;
+using namespace o2::framework;
+using namespace o2::framework::expressions;
+
+struct strangeness_tutorial {
+  // Histograms are defined with HistogramRegistry
+  HistogramRegistry rEventSelection{"eventSelection", {}, OutputObjHandlingPolicy::AnalysisObject, true, true};
+
+  // Configurable for histograms
+  Configurable<int> nBins{"nBins", 100, "N bins in all histos"};
+
+  // Configurable for event selection
+  Configurable<float> cutzvertex{"cutzvertex", 10.0f, "Accepted z-vertex range (cm)"};
+
+  void init(InitContext const&)
+  {
+    // Axes
+    AxisSpec vertexZAxis = {nBins, -15., 15., "vrtx_{Z} [cm]"};
+
+    // Histograms
+    // Event selection
+    rEventSelection.add("hVertexZRec", "hVertexZRec", {HistType::kTH1F, {vertexZAxis}});
+  }
+
+  // Defining filters for events (event selection)
+  // Processed events will be already fulfilling the event selection requirements
+  Filter eventFilter = (o2::aod::evsel::sel8 == true);
+  Filter posZFilter = (nabs(o2::aod::collision::posZ) < cutzvertex);
+
+  void process(soa::Filtered<soa::Join<aod::Collisions, aod::EvSels>>::iterator const& collision)
+  {
+    // Fill the event counter
+    rEventSelection.fill(HIST("hVertexZRec"), collision.posZ());
+  }
+};
+
+WorkflowSpec defineDataProcessing(ConfigContext const& cfgc)
+{
+  return WorkflowSpec{
+    adaptAnalysisTask<strangeness_tutorial>(cfgc)};
+}
diff --git a/Tutorials/PWGLF/Strangeness/Original/strangeness_step2.cxx b/Tutorials/PWGLF/Strangeness/Original/strangeness_step2.cxx
index fd863f5090a..f41aac138f5 100644
--- a/Tutorials/PWGLF/Strangeness/Original/strangeness_step2.cxx
+++ b/Tutorials/PWGLF/Strangeness/Original/strangeness_step2.cxx
@@ -16,7 +16,6 @@
 #include "PWGLF/DataModel/LFStrangenessTables.h"
 
 #include "Common/DataModel/EventSelection.h"
-#include "Common/DataModel/PIDResponse.h"
 
 #include "Framework/AnalysisTask.h"
 #include "Framework/runDataProcessing.h"
@@ -110,10 +109,10 @@ struct strangeness_tutorial {
       if (v0.v0radius() < v0setting_radius)
         continue;
 
-      if (TMath::Abs(posDaughterTrack.tpcNSigmaPi()) > NSigmaTPCPion) {
+      if (std::abs(posDaughterTrack.tpcNSigmaPi()) > NSigmaTPCPion) {
         continue;
       }
-      if (TMath::Abs(negDaughterTrack.tpcNSigmaPi()) > NSigmaTPCPion) {
+      if (std::abs(negDaughterTrack.tpcNSigmaPi()) > NSigmaTPCPion) {
         continue;
       }
 
diff --git a/Tutorials/PWGLF/Strangeness/Original/strangeness_step3.cxx b/Tutorials/PWGLF/Strangeness/Original/strangeness_step3.cxx
index 339747e458d..16a71ee81e5 100644
--- a/Tutorials/PWGLF/Strangeness/Original/strangeness_step3.cxx
+++ b/Tutorials/PWGLF/Strangeness/Original/strangeness_step3.cxx
@@ -16,7 +16,6 @@
 #include "PWGLF/DataModel/LFStrangenessTables.h"
 
 #include "Common/DataModel/EventSelection.h"
-#include "Common/DataModel/PIDResponse.h"
 
 #include "Framework/AnalysisTask.h"
 #include "Framework/runDataProcessing.h"
@@ -124,10 +123,10 @@ struct strangeness_tutorial {
       if (v0.v0radius() < v0setting_radius)
         continue;
 
-      if (TMath::Abs(posDaughterTrack.tpcNSigmaPi()) > NSigmaTPCPion) {
+      if (std::abs(posDaughterTrack.tpcNSigmaPi()) > NSigmaTPCPion) {
         continue;
       }
-      if (TMath::Abs(negDaughterTrack.tpcNSigmaPi()) > NSigmaTPCPion) {
+      if (std::abs(negDaughterTrack.tpcNSigmaPi()) > NSigmaTPCPion) {
         continue;
       }
 
diff --git a/Tutorials/PWGLF/Strangeness/Original/strangeness_step4.cxx b/Tutorials/PWGLF/Strangeness/Original/strangeness_step4.cxx
index f5a53dd5089..eb8893e2cd2 100644
--- a/Tutorials/PWGLF/Strangeness/Original/strangeness_step4.cxx
+++ b/Tutorials/PWGLF/Strangeness/Original/strangeness_step4.cxx
@@ -16,7 +16,6 @@
 #include "PWGLF/DataModel/LFStrangenessTables.h"
 
 #include "Common/DataModel/EventSelection.h"
-#include "Common/DataModel/PIDResponse.h"
 
 #include "Framework/AnalysisTask.h"
 #include "Framework/runDataProcessing.h"