diff --git a/Examples/options/export_detector_gdml.py b/Examples/options/export_detector_gdml.py
index 603050e82..22d9f0c68 100644
--- a/Examples/options/export_detector_gdml.py
+++ b/Examples/options/export_detector_gdml.py
@@ -1,7 +1,7 @@
 import os
 from Gaudi.Configuration import *
 
-from Configurables import ApplicationMgr
+from k4FWCore import ApplicationMgr
 app = ApplicationMgr()
 app.TopAlg = []
 app.EvtSel = 'NONE'
diff --git a/Examples/options/geant_fastsim.py b/Examples/options/geant_fastsim.py
index 38241118b..20af7f719 100644
--- a/Examples/options/geant_fastsim.py
+++ b/Examples/options/geant_fastsim.py
@@ -4,15 +4,16 @@
 from GaudiKernel import SystemOfUnits as units
 from GaudiKernel import PhysicalConstants as constants
 
-from Configurables import ApplicationMgr
+from Configurables import EventDataSvc
+from k4FWCore import ApplicationMgr, IOSvc
+
 ApplicationMgr().EvtSel = 'NONE' 
 ApplicationMgr().EvtMax = 2
 ApplicationMgr().OutputLevel = INFO
 ApplicationMgr().ExtSvc = ['RndmGenSvc']
 
-from Configurables import FCCDataSvc
 ## Data service
-podioevent = FCCDataSvc("EventDataSvc")
+podioevent = EventDataSvc("EventDataSvc")
 ApplicationMgr().ExtSvc += [podioevent]
 
 
@@ -126,9 +127,7 @@
 ApplicationMgr().TopAlg += [hist]
 
 
-from Configurables import PodioOutput
-out = PodioOutput("out")
-out.filename = "out_geant_fastsim.root"
-out.outputCommands = ["keep *"]
-ApplicationMgr().TopAlg += [out]
+iosvc = IOSvc()
+iosvc.Output = "out_geant_fastsim.root"
+iosvc.outputCommands = ["keep *"]
 
diff --git a/Examples/options/geant_fastsim_tklayout.py b/Examples/options/geant_fastsim_tklayout.py
index f680029f1..a22230484 100644
--- a/Examples/options/geant_fastsim_tklayout.py
+++ b/Examples/options/geant_fastsim_tklayout.py
@@ -2,15 +2,17 @@
 
 from Gaudi.Configuration import *
 
-from Configurables import ApplicationMgr
+from Configurables import EventDataSvc
+from k4FWCore import ApplicationMgr, IOSvc
+
 ApplicationMgr().EvtSel = 'NONE' 
 ApplicationMgr().EvtMax = 2
 ApplicationMgr().OutputLevel = INFO
 ApplicationMgr().ExtSvc += ['RndmGenSvc']
 
 # Data service
-from Configurables import FCCDataSvc
-podioevent = FCCDataSvc("EventDataSvc")
+
+podioevent = EventDataSvc("EventDataSvc")
 ApplicationMgr().ExtSvc += [podioevent]
 
 from Configurables import MomentumRangeParticleGun
@@ -112,10 +114,8 @@
 THistSvc().AutoFlush = True
 ApplicationMgr().TopAlg += hist
 
-# PODIO algorithm
-from Configurables import PodioOutput
-out = PodioOutput() 
-out.filename = "out_geant_fastsim_tklayout.root"
-out.outputCommands = ["keep *"]
-ApplicationMgr().TopAlg += [out]
+# PODIO output
+iosvc = IOSvc()
+iosvc.Output = "out_geant_fastsim_tklayout.root"
+iosvc.outputCommands = ["keep *"]
 
diff --git a/Examples/options/geant_fullsim.py b/Examples/options/geant_fullsim.py
index 29068b06c..3cafe2a81 100644
--- a/Examples/options/geant_fullsim.py
+++ b/Examples/options/geant_fullsim.py
@@ -6,15 +6,16 @@
 from GaudiKernel import SystemOfUnits as units
 from GaudiKernel import PhysicalConstants as constants
 
-from Configurables import ApplicationMgr
+from Configurables import EventDataSvc
+from k4FWCore import ApplicationMgr, IOSvc
+
 ApplicationMgr().EvtSel = 'NONE' 
 ApplicationMgr().EvtMax = 2
 ApplicationMgr().OutputLevel = INFO
 ApplicationMgr().ExtSvc = ['RndmGenSvc']
 
-from Configurables import FCCDataSvc
 ## Data service
-podioevent = FCCDataSvc("EventDataSvc")
+podioevent = EventDataSvc("EventDataSvc")
 ApplicationMgr().ExtSvc += [podioevent]
 
 
@@ -77,10 +78,8 @@
 geantsim.eventProvider.GenParticles.Path = "allGenParticles"
 ApplicationMgr().TopAlg += [geantsim]
 
-# PODIO algorithm
-from Configurables import PodioOutput
-out = PodioOutput()
-out.outputCommands = ["keep *"]
-out.filename = "out_geant_fullsim.root"
-ApplicationMgr().TopAlg += [out]
+# PODIO output
+iosvc = IOSvc()
+iosvc.Output = "out_geant_fullsim.root"
+iosvc.outputCommands = ["keep *"]
 
diff --git a/Examples/options/geant_fullsim_fccee_cld_hepevt.py b/Examples/options/geant_fullsim_fccee_cld_hepevt.py
index 0fa9d0feb..9736980eb 100644
--- a/Examples/options/geant_fullsim_fccee_cld_hepevt.py
+++ b/Examples/options/geant_fullsim_fccee_cld_hepevt.py
@@ -4,15 +4,17 @@
 from GaudiKernel import SystemOfUnits as units
 from GaudiKernel import PhysicalConstants as constants
 
-from Configurables import ApplicationMgr
+from Configurables import EventDataSvc
+from k4FWCore import ApplicationMgr, IOSvc
+
 ApplicationMgr().EvtSel = 'NONE' 
 ApplicationMgr().EvtMax = 2
 ApplicationMgr().OutputLevel = INFO
 ApplicationMgr().ExtSvc += ['RndmGenSvc']
 
-from Configurables import FCCDataSvc
+
 ## Data service
-podioevent = FCCDataSvc("EventDataSvc")
+podioevent = EventDataSvc("EventDataSvc")
 ApplicationMgr().ExtSvc += [podioevent]
 
 # from Configurables import HepMCReader
@@ -127,12 +129,9 @@
 geantsim.eventProvider.GenParticles.Path = "GenParticles"
 ApplicationMgr().TopAlg += [geantsim]
 
-# PODIO algorithm
-from Configurables import PodioOutput
-out = PodioOutput("out")
-out.filename = "out_geant_fullsim_fccee_cld_hepevt.root"
-out.OutputLevel = DEBUG
-out.outputCommands = ["keep *"]
-ApplicationMgr().TopAlg += [out]
+# PODIO output
+iosvc = IOSvc()
+iosvc.Output = "out_geant_fullsim_fccee_cld_hepevt.root"
+iosvc.outputCommands = ["keep *"]
 
 
diff --git a/Examples/options/geant_fullsim_fccee_cld_pgun.py b/Examples/options/geant_fullsim_fccee_cld_pgun.py
index 68311608c..e9bcfccb4 100644
--- a/Examples/options/geant_fullsim_fccee_cld_pgun.py
+++ b/Examples/options/geant_fullsim_fccee_cld_pgun.py
@@ -4,15 +4,17 @@
 from GaudiKernel import SystemOfUnits as units
 from GaudiKernel import PhysicalConstants as constants
 
-from Configurables import ApplicationMgr
+from Configurables import EventDataSvc
+from k4FWCore import ApplicationMgr, IOSvc
+
 ApplicationMgr().EvtSel = 'NONE' 
 ApplicationMgr().EvtMax = 2
 ApplicationMgr().OutputLevel = INFO
 ApplicationMgr().ExtSvc += ['RndmGenSvc']
 
-from Configurables import FCCDataSvc
+
 ## Data service
-podioevent = FCCDataSvc("EventDataSvc")
+podioevent = EventDataSvc("EventDataSvc")
 ApplicationMgr().ExtSvc += [podioevent]
 
 from Configurables import MomentumRangeParticleGun
@@ -143,11 +145,8 @@
 geantsim.eventProvider.GenParticles.Path = "GenParticles"
 ApplicationMgr().TopAlg += [geantsim]
 
-# PODIO algorithm
-from Configurables import PodioOutput
-out = PodioOutput("out")
-out.filename = "out_geant_fullsim_fccee_cld_pgun.root"
-out.OutputLevel = DEBUG
-out.outputCommands = ["keep *"]
-ApplicationMgr().TopAlg += [out]
+# PODIO output
+iosvc = IOSvc()
+iosvc.Output = "out_geant_fullsim_fccee_cld_pgun.root"
+iosvc.outputCommands = ["keep *"]
 
diff --git a/Examples/options/geant_fullsim_fccee_idea_hepevt.py b/Examples/options/geant_fullsim_fccee_idea_hepevt.py
index c7aa3798a..4cb8878fb 100644
--- a/Examples/options/geant_fullsim_fccee_idea_hepevt.py
+++ b/Examples/options/geant_fullsim_fccee_idea_hepevt.py
@@ -3,14 +3,15 @@
 from Gaudi.Configuration import *
 import GaudiKernel.SystemOfUnits as units
 
-from Configurables import ApplicationMgr
+from Configurables import EventDataSvc
+from k4FWCore import ApplicationMgr, IOSvc
+
 ApplicationMgr().EvtSel = "NONE"
 ApplicationMgr().EvtMax = 100
 ApplicationMgr().OutputLevel = INFO
 
 
-from Configurables import FCCDataSvc
-podioevent = FCCDataSvc("EventDataSvc")
+podioevent = EventDataSvc("EventDataSvc")
 ApplicationMgr().ExtSvc += [podioevent]
 
 # from Configurables import HepMCReader
@@ -100,9 +101,7 @@
 geantsim.eventProvider.GenParticles.Path = "GenParticles"
 ApplicationMgr().TopAlg += [geantsim]
 
-from Configurables import PodioOutput
-out = PodioOutput("out")
-out.filename = "out_geant_fullsim_fccee_idea_hepevt.root"
-out.outputCommands = ["keep *"]
-ApplicationMgr().TopAlg += [out]
+iosvc = IOSvc()
+iosvc.Output = "out_geant_fullsim_fccee_idea_hepevt.root"
+iosvc.outputCommands = ["keep *"]
 
diff --git a/Examples/options/geant_fullsim_fccee_idea_pgun.py b/Examples/options/geant_fullsim_fccee_idea_pgun.py
index 7e54233df..a135c941b 100644
--- a/Examples/options/geant_fullsim_fccee_idea_pgun.py
+++ b/Examples/options/geant_fullsim_fccee_idea_pgun.py
@@ -3,14 +3,15 @@
 from Gaudi.Configuration import *
 import GaudiKernel.SystemOfUnits as units
 
-from Configurables import ApplicationMgr
+from Configurables import EventDataSvc
+from k4FWCore import ApplicationMgr, IOSvc
+
 ApplicationMgr().EvtSel = "NONE"
 ApplicationMgr().EvtMax = 100
 ApplicationMgr().OutputLevel = INFO
 
 
-from Configurables import FCCDataSvc
-podioevent = FCCDataSvc("EventDataSvc")
+podioevent = EventDataSvc("EventDataSvc")
 ApplicationMgr().ExtSvc += [podioevent]
 
 # DD4hep geometry service
@@ -106,9 +107,7 @@
 geantsim.eventProvider = pgun
 ApplicationMgr().TopAlg += [geantsim]
 
-from Configurables import PodioOutput
-out = PodioOutput("out")
-out.filename = "out_geant_fullsim_fccee_idea_pgun.root"
-out.outputCommands = ["keep *"]
-ApplicationMgr().TopAlg += [out]
+iosvc = IOSvc()
+iosvc.Output = "out_geant_fullsim_fccee_idea_pgun.root"
+iosvc.outputCommands = ["keep *"]
 
diff --git a/Examples/options/geant_fullsim_fccee_lar_pgun.py b/Examples/options/geant_fullsim_fccee_lar_pgun.py
index 5641eac7b..8f2877afb 100644
--- a/Examples/options/geant_fullsim_fccee_lar_pgun.py
+++ b/Examples/options/geant_fullsim_fccee_lar_pgun.py
@@ -4,19 +4,20 @@
 from GaudiKernel import PhysicalConstants as constants
 from GaudiKernel.SystemOfUnits import MeV, GeV, tesla
 
-from Configurables import ApplicationMgr
+from Configurables import MetadataSvc, EventDataSvc
+from k4FWCore import ApplicationMgr, IOSvc
+
 ApplicationMgr().EvtSel = 'NONE' 
 ApplicationMgr().EvtMax = 2
 ApplicationMgr().OutputLevel = INFO
 ApplicationMgr().StopOnSignal = True
 ApplicationMgr().ExtSvc += ['RndmGenSvc']
 
-from Configurables import MetadataSvc
 ApplicationMgr().ExtSvc += [MetadataSvc()]
 
-from Configurables import FCCDataSvc
+
 ## Data service
-podioevent = FCCDataSvc("EventDataSvc")
+podioevent = EventDataSvc("EventDataSvc")
 ApplicationMgr().ExtSvc += [podioevent]
 
 from Configurables import MomentumRangeParticleGun
@@ -256,12 +257,9 @@
 
 
 ################ Output
-from Configurables import PodioOutput
-out = PodioOutput("out")
-out.outputCommands = ["keep *", "drop ECalBarrelHits", "drop HCal*", "drop ECalBarrelCellsStep*", "drop ECalBarrelPositionedHits", "drop emptyCaloCells", "drop CaloClusterCells"]
-import uuid
-out.filename = "output_fullCalo_SimAndDigi.root"
-ApplicationMgr().TopAlg += [out]
+iosvc = IOSvc()
+iosvc.outputCommands = ["keep *", "drop ECalBarrelHits", "drop HCal*", "drop ECalBarrelCellsStep*", "drop ECalBarrelPositionedHits", "drop emptyCaloCells", "drop CaloClusterCells"]
+iosvc.Output = "output_fullCalo_SimAndDigi.root"
 
 #CPU information
 from Configurables import AuditorSvc, ChronoAuditor
@@ -275,5 +273,4 @@
 resegmentEcalBarrel.AuditExecute = True
 createEcalBarrelCells.AuditExecute = True
 createHcalBarrelCells.AuditExecute = True
-out.AuditExecute = True
 # ApplicationMgr().ExtSvc += [audsvc]
diff --git a/Examples/options/geant_fullsim_fcchh_main.py b/Examples/options/geant_fullsim_fcchh_main.py
index 168646556..308ed6f61 100644
--- a/Examples/options/geant_fullsim_fcchh_main.py
+++ b/Examples/options/geant_fullsim_fcchh_main.py
@@ -10,15 +10,17 @@
 from k4_workflow_blocks.fccsw.detector_fcc_hh_main import *
 
 
-from Configurables import ApplicationMgr
+from Configurables import EventDataSvc
+from k4FWCore import ApplicationMgr, IOSvc
+
 ApplicationMgr().EvtSel = 'NONE' 
 ApplicationMgr().EvtMax = 2
 ApplicationMgr().OutputLevel = INFO
 ApplicationMgr().ExtSvc += ['RndmGenSvc']
 
-from Configurables import FCCDataSvc
+
 ## Data service
-podioevent = FCCDataSvc("EventDataSvc")
+podioevent = EventDataSvc("EventDataSvc")
 ApplicationMgr().ExtSvc += [podioevent]
 
 
@@ -45,10 +47,8 @@
 geantsim.eventProvider.GenParticles.Path = "GenParticles"
 ApplicationMgr().TopAlg += [geantsim]
 
-# PODIO algorithm
-from Configurables import PodioOutput
-out = PodioOutput()
-out.outputCommands = ["keep *"]
-out.filename = "out_geant_fullsim_fcchh_main.root"
-ApplicationMgr().TopAlg += [out]
+# PODIO output
+iosvc = IOSvc()
+iosvc.Output = "out_geant_fullsim_fcchh_main.root"
+iosvc.outputCommands = ["keep *"]
 
diff --git a/Examples/options/geant_fullsim_fcchh_tracker.py b/Examples/options/geant_fullsim_fcchh_tracker.py
index 5584d4842..d0648bb61 100644
--- a/Examples/options/geant_fullsim_fcchh_tracker.py
+++ b/Examples/options/geant_fullsim_fcchh_tracker.py
@@ -9,15 +9,17 @@
 from k4_workflow_blocks.fccsw.detector_fcc_hh_tracker import *
 
 
-from Configurables import ApplicationMgr
+from Configurables import EventDataSvc
+from k4FWCore import ApplicationMgr, IOSvc
+
 ApplicationMgr().EvtSel = 'NONE'
 ApplicationMgr().EvtMax = 2
 ApplicationMgr().OutputLevel = INFO
 ApplicationMgr().ExtSvc += ['RndmGenSvc']
 
-from Configurables import FCCDataSvc
+
 ## Data service
-podioevent = FCCDataSvc("EventDataSvc")
+podioevent = EventDataSvc("EventDataSvc")
 ApplicationMgr().ExtSvc += [podioevent]
 
 
@@ -61,10 +63,8 @@
 geantsim.eventProvider.GenParticles.Path = "GenParticles"
 ApplicationMgr().TopAlg += [geantsim]
 
-# PODIO algorithm
-from Configurables import PodioOutput
-out = PodioOutput()
-out.outputCommands = ["keep *"]
-out.filename = "out_geant_fullsim_fcchh_tracker.root"
-ApplicationMgr().TopAlg += [out]
+# PODIO output
+iosvc = IOSvc()
+iosvc.outputCommands = ["keep *"]
+iosvc.Output = "out_geant_fullsim_fcchh_tracker.root"
 
diff --git a/Examples/options/geant_fullsim_field.py b/Examples/options/geant_fullsim_field.py
index fbf5d187b..b4eae42cb 100644
--- a/Examples/options/geant_fullsim_field.py
+++ b/Examples/options/geant_fullsim_field.py
@@ -6,15 +6,16 @@
 from GaudiKernel import SystemOfUnits as units
 from GaudiKernel import PhysicalConstants as constants
 
-from Configurables import ApplicationMgr
+from Configurables import EventDataSvc
+from k4FWCore import ApplicationMgr, IOSvc
+
 ApplicationMgr().EvtSel = 'NONE' 
 ApplicationMgr().EvtMax = 2
 ApplicationMgr().OutputLevel = INFO
 ApplicationMgr().ExtSvc = ['RndmGenSvc']
 
-from Configurables import FCCDataSvc
 ## Data service
-podioevent = FCCDataSvc("EventDataSvc")
+podioevent = EventDataSvc("EventDataSvc")
 ApplicationMgr().ExtSvc += [podioevent]
 
 
@@ -89,10 +90,8 @@
 geantsim.eventProvider.GenParticles.Path = "GenParticles"
 ApplicationMgr().TopAlg += [geantsim]
 
-# PODIO algorithm
-from Configurables import PodioOutput
-out = PodioOutput()
-out.outputCommands = ["keep *"]
-out.filename = "out_geant_fullsim_field.root"
-ApplicationMgr().TopAlg += [out]
+# PODIO output
+iosvc = IOSvc()
+iosvc.outputCommands = ["keep *"]
+iosvc.Output = "out_geant_fullsim_field.root"
 
diff --git a/Examples/options/geant_fullsim_userlimits.py b/Examples/options/geant_fullsim_userlimits.py
index d944f876a..34a947143 100644
--- a/Examples/options/geant_fullsim_userlimits.py
+++ b/Examples/options/geant_fullsim_userlimits.py
@@ -3,14 +3,16 @@
 from Gaudi.Configuration import *
 from GaudiKernel.SystemOfUnits import mm
 
-from Configurables import ApplicationMgr
+from Configurables import EventDataSvc
+from k4FWCore import ApplicationMgr, IOSvc
+
 ApplicationMgr().EvtSel = 'NONE'
 ApplicationMgr().EvtMax = 2
 ApplicationMgr().OutputLevel = INFO
 
 # Data service
-from Configurables import FCCDataSvc
-podioevent = FCCDataSvc("EventDataSvc")
+
+podioevent = EventDataSvc("EventDataSvc")
 ApplicationMgr().ExtSvc += [podioevent]
 
 
@@ -79,11 +81,8 @@
 
 
 
-# PODIO algorithm
-from Configurables import PodioOutput
-out = PodioOutput("out")
-out.filename = "out_geant_fullsim_userlimits.root"
-out.outputCommands = ["keep *"]
-out.OutputLevel = DEBUG
-ApplicationMgr().TopAlg += [out]
+# PODIO output
+iosvc = IOSvc()
+iosvc.Output = "out_geant_fullsim_userlimits.root"
+iosvc.outputCommands = ["keep *"]
 
diff --git a/Examples/options/material_scan.py b/Examples/options/material_scan.py
index 3fdc1a5bb..5846a4695 100644
--- a/Examples/options/material_scan.py
+++ b/Examples/options/material_scan.py
@@ -2,7 +2,7 @@
 from Gaudi.Configuration import *
 
 
-from Configurables import ApplicationMgr
+from k4FWCore import ApplicationMgr
 ApplicationMgr().EvtSel = 'None' 
 ApplicationMgr().EvtMax = 1
 ApplicationMgr().OutputLevel = INFO
diff --git a/Examples/options/particle_gun.py b/Examples/options/particle_gun.py
index dc96d0e1e..8cac78ef7 100644
--- a/Examples/options/particle_gun.py
+++ b/Examples/options/particle_gun.py
@@ -4,14 +4,16 @@
 from GaudiKernel import SystemOfUnits as units
 from GaudiKernel import PhysicalConstants as constants
 
-from Configurables import ApplicationMgr
+#### Data service
+from Configurables import EventDataSvc
+from k4FWCore import ApplicationMgr, IOSvc
+
 ApplicationMgr().EvtSel = 'NONE' 
 ApplicationMgr().EvtMax = 2
 ApplicationMgr().OutputLevel = INFO
 
-#### Data service
-from Configurables import k4DataSvc
-podioevent = k4DataSvc("EventDataSvc")
+
+podioevent = EventDataSvc("EventDataSvc")
 ApplicationMgr().ExtSvc += [podioevent]
 
 from Configurables import MomentumRangeParticleGun
@@ -35,8 +37,6 @@
 hepmc_converter.GenParticles.Path="GenParticles"
 ApplicationMgr().TopAlg += [hepmc_converter]
 
-from Configurables import PodioOutput
-out = PodioOutput("out")
-out.outputCommands = ["keep *"]
-out.filename = "out_particle_gun.root"
-ApplicationMgr().TopAlg += [out]
+iosvc = IOSvc()
+iosvc.outputCommands = ["keep *"]
+iosvc.Output = "out_particle_gun.root"
diff --git a/Examples/options/pythia.py b/Examples/options/pythia.py
index 164ae84f8..7a74a9ad3 100644
--- a/Examples/options/pythia.py
+++ b/Examples/options/pythia.py
@@ -9,15 +9,17 @@
 from GaudiKernel import SystemOfUnits as units
 from Gaudi.Configuration import *
 
-from Configurables import ApplicationMgr
+#### Data service
+from Configurables import EventDataSvc
+from k4FWCore import ApplicationMgr, IOSvc
+
 ApplicationMgr().EvtSel = 'NONE' 
 ApplicationMgr().EvtMax = 2
 ApplicationMgr().OutputLevel = INFO
 ApplicationMgr().ExtSvc +=["RndmGenSvc"]
 
-#### Data service
-from Configurables import k4DataSvc
-podioevent = k4DataSvc("EventDataSvc")
+
+podioevent = EventDataSvc("EventDataSvc")
 ApplicationMgr().ExtSvc += [podioevent]
 
 from Configurables import GaussSmearVertex
@@ -61,10 +63,8 @@
 genfilter.GenParticlesFiltered.Path = "GenParticlesStable"
 ApplicationMgr().TopAlg += [genfilter]
 
-from Configurables import PodioOutput
-out = PodioOutput("out")
-out.filename = "out_pythia.root"
-out.outputCommands = ["keep *"]
-ApplicationMgr().TopAlg += [out]
+iosvc = IOSvc()
+iosvc.Output = "out_pythia.root"
+iosvc.outputCommands = ["keep *"]
 
 
diff --git a/Examples/options/read_podio_input.py b/Examples/options/read_podio_input.py
index 841e4bb7f..1604ef8d3 100644
--- a/Examples/options/read_podio_input.py
+++ b/Examples/options/read_podio_input.py
@@ -1,25 +1,17 @@
 from Gaudi.Configuration import *
 
-from Configurables import ApplicationMgr
+from Configurables import EventDataSvc
+from k4FWCore import ApplicationMgr, IOSvc
+
 ApplicationMgr().EvtSel = 'NONE'
 ApplicationMgr().EvtMax = 2
 
-from Configurables import FCCDataSvc
-podioevent = FCCDataSvc("EventDataSvc")
-podioevent.input = "http://fccsw.web.cern.ch/fccsw/testsamples/out_particle_gun.root"
+podioevent = EventDataSvc("EventDataSvc")
 ApplicationMgr().ExtSvc += [podioevent]
 
-from Configurables import PodioInput
-podioinput = PodioInput("PodioReader")
-podioinput.collections = ["GenParticles"]
-podioinput.OutputLevel = DEBUG
-ApplicationMgr().TopAlg += [podioinput]
-
-
-from Configurables import PodioOutput
-out = PodioOutput("out")
-out.filename = "out_read_podio_input.root"
-out.OutputLevel = DEBUG
-out.outputCommands = ["keep *"]
-ApplicationMgr().TopAlg += [out]
+iosvc = IOSvc()
+iosvc.Input = "http://fccsw.web.cern.ch/fccsw/testsamples/out_particle_gun.root"
+iosvc.CollectionNames = ["GenParticles"]
+iosvc.Output = "out_read_podio_input.root"
+iosvc.outputCommands = ["keep *"]
 
diff --git a/k4_workflow_blocks/fccsw/c00_01_default_applicationmanager.py b/k4_workflow_blocks/fccsw/c00_01_default_applicationmanager.py
index 34f178eaa..084055d2c 100644
--- a/k4_workflow_blocks/fccsw/c00_01_default_applicationmanager.py
+++ b/k4_workflow_blocks/fccsw/c00_01_default_applicationmanager.py
@@ -3,13 +3,14 @@
 from GaudiKernel import SystemOfUnits as units
 from GaudiKernel import PhysicalConstants as constants
 
-from Configurables import ApplicationMgr
+from Configurables import EventDataSvc
+from k4FWCore import ApplicationMgr, IOSvc
+
 ApplicationMgr().EvtSel = 'NONE' 
 ApplicationMgr().EvtMax = 2
 ApplicationMgr().OutputLevel = INFO
 ApplicationMgr().ExtSvc += ['RndmGenSvc']
 
-from Configurables import FCCDataSvc
 ## Data service
-podioevent = FCCDataSvc("EventDataSvc")
+podioevent = EventDataSvc("EventDataSvc")
 ApplicationMgr().ExtSvc += [podioevent]
diff --git a/k4_workflow_blocks/fccsw/c99_01_podio_output.py b/k4_workflow_blocks/fccsw/c99_01_podio_output.py
index 294551569..41fbbe626 100644
--- a/k4_workflow_blocks/fccsw/c99_01_podio_output.py
+++ b/k4_workflow_blocks/fccsw/c99_01_podio_output.py
@@ -1,10 +1,9 @@
 
 from Gaudi.Configuration import *
+from k4FWCore import IOSvc
 
-# PODIO algorithm
-from Configurables import PodioOutput
-out = PodioOutput()
-out.outputCommands = ["keep *"]
-out.filename = "out_geant_fullsim.root"
-ApplicationMgr().TopAlg += [out]
+# PODIO output
+iosvc = IOSvc()
+iosvc.outputCommands = ["keep *"]
+iosvc.Output = "out_geant_fullsim.root"