diff --git a/tests/data/Aciclovir.pkml b/inst/extdata/Aciclovir.pkml
similarity index 100%
rename from tests/data/Aciclovir.pkml
rename to inst/extdata/Aciclovir.pkml
diff --git a/inst/extdata/PKAnalyses.csv b/inst/extdata/PKAnalyses.csv
new file mode 100644
index 000000000..6d36cdae4
--- /dev/null
+++ b/inst/extdata/PKAnalyses.csv
@@ -0,0 +1,15 @@
+"IndividualId","QuantityPath","Parameter","Value","Unit"
+0,"Organism|PeripheralVenousBlood|Aciclovir|Plasma (Peripheral Venous Blood)","C_max",50.2527198791504,µmol/l
+0,"Organism|PeripheralVenousBlood|Aciclovir|Plasma (Peripheral Venous Blood)","C_max_norm",3066159.48677063,mg/l
+0,"Organism|PeripheralVenousBlood|Aciclovir|Plasma (Peripheral Venous Blood)","t_max",0.183333333333333,h
+0,"Organism|PeripheralVenousBlood|Aciclovir|Plasma (Peripheral Venous Blood)","C_tEnd",0.0325417779386044,µmol/l
+0,"Organism|PeripheralVenousBlood|Aciclovir|Plasma (Peripheral Venous Blood)","AUC_tEnd",4064.12451171875,µmol*min/l
+0,"Organism|PeripheralVenousBlood|Aciclovir|Plasma (Peripheral Venous Blood)","AUC_tEnd_norm",247971725463.867,µg*min/l
+0,"Organism|PeripheralVenousBlood|Aciclovir|Plasma (Peripheral Venous Blood)","AUC_inf",4072.62866210938,µmol*min/l
+0,"Organism|PeripheralVenousBlood|Aciclovir|Plasma (Peripheral Venous Blood)","AUC_inf_norm",248490600585.937,µg*min/l
+0,"Organism|PeripheralVenousBlood|Aciclovir|Plasma (Peripheral Venous Blood)","MRT",3.22140401204427,h
+0,"Organism|PeripheralVenousBlood|Aciclovir|Plasma (Peripheral Venous Blood)","Thalf",3.01898854573568,h
+0,"Organism|PeripheralVenousBlood|Aciclovir|Plasma (Peripheral Venous Blood)","FractionAucLastToInf",0.0020881115924567,
+0,"Organism|PeripheralVenousBlood|Aciclovir|Plasma (Peripheral Venous Blood)","CL",4.02429699897766,ml/min/kg
+0,"Organism|PeripheralVenousBlood|Aciclovir|Plasma (Peripheral Venous Blood)","Vss",777.833223342896,ml/kg
+0,"Organism|PeripheralVenousBlood|Aciclovir|Plasma (Peripheral Venous Blood)","Vd",1051.66471004486,ml/kg
diff --git a/inst/extdata/SAResult.csv b/inst/extdata/SAResult.csv
new file mode 100644
index 000000000..b92a51cff
--- /dev/null
+++ b/inst/extdata/SAResult.csv
@@ -0,0 +1,73 @@
+"QuantityPath","Parameter","PKParameter","Value"
+"Organism|B","Volume","C_max",0
+"Organism|B","Q","C_max",0
+"Organism|B","R1-k1","C_max",0.125683048927291
+"Organism|B","Volume","t_max",0
+"Organism|B","Q","t_max",0
+"Organism|B","R1-k1","t_max",0
+"Organism|B","Volume","C_tEnd",0
+"Organism|B","Q","C_tEnd",0
+"Organism|B","R1-k1","C_tEnd",0.125683048927291
+"Organism|B","Volume","AUC_tEnd",0
+"Organism|B","Q","AUC_tEnd",0
+"Organism|B","R1-k1","AUC_tEnd",0.28611793526023
+"Organism|B","Volume","Thalf",0.00263222880524802
+"Organism|B","Q","Thalf",0.00263222880524803
+"Organism|B","R1-k1","Thalf",2.07765550328695
+"Organism|A","Volume","C_max",0
+"Organism|A","Q","C_max",0
+"Organism|A","R1-k1","C_max",0
+"Organism|A","Volume","C_tEnd",0.00190454006083498
+"Organism|A","Q","C_tEnd",0.00190454006083497
+"Organism|A","R1-k1","C_tEnd",-3.02083869539058
+"Organism|A","Volume","AUC_tEnd",-0.000128123461933747
+"Organism|A","Q","AUC_tEnd",-0.000128123461933749
+"Organism|A","R1-k1","AUC_tEnd",-0.840311133361753
+"Organism|A","Volume","AUC_inf",0.00018484046398853
+"Organism|A","Q","AUC_inf",0.000184840463988528
+"Organism|A","R1-k1","AUC_inf",-1.00100907307317
+"Organism|A","Volume","MRT",0.00118913494339526
+"Organism|A","Q","MRT",0.00118913494339525
+"Organism|A","R1-k1","MRT",-1.01555226539856
+"Organism|A","Volume","Thalf",0.00426118762408444
+"Organism|A","Q","Thalf",0.00426118762408443
+"Organism|A","R1-k1","Thalf",-1.01312030950234
+"Organism|A","Volume","FractionAucLastToInf",0.0059700442604894
+"Organism|A","Q","FractionAucLastToInf",0.00597004426048938
+"Organism|A","R1-k1","FractionAucLastToInf",-3.03173890196508
+"Organism|Liver|A","Volume","C_max",0
+"Organism|Liver|A","Q","C_max",0
+"Organism|Liver|A","R1-k1","C_max",0
+"Organism|Liver|A","Volume","C_tEnd",0.00190449529412327
+"Organism|Liver|A","Q","C_tEnd",0.00190449529412326
+"Organism|Liver|A","R1-k1","C_tEnd",-3.02083906347243
+"Organism|Liver|A","Volume","AUC_tEnd",-0.000128112779572286
+"Organism|Liver|A","Q","AUC_tEnd",-0.000128112779572288
+"Organism|Liver|A","R1-k1","AUC_tEnd",-0.840311179491087
+"Organism|Liver|A","Volume","AUC_inf",0.000184678113354372
+"Organism|Liver|A","Q","AUC_inf",0.000184678113354369
+"Organism|Liver|A","R1-k1","AUC_inf",-1.00100945868531
+"Organism|Liver|A","Volume","MRT",0.00118913494339526
+"Organism|Liver|A","Q","MRT",0.00118913494339525
+"Organism|Liver|A","R1-k1","MRT",-1.0155530878528
+"Organism|Liver|A","Volume","Thalf",0.00426148998413105
+"Organism|Liver|A","Q","Thalf",0.00426148998413104
+"Organism|Liver|A","R1-k1","Thalf",-1.01312506480125
+"Organism|Liver|A","Volume","FractionAucLastToInf",0.00597026840963047
+"Organism|Liver|A","Q","FractionAucLastToInf",0.00597026840963045
+"Organism|Liver|A","R1-k1","FractionAucLastToInf",-3.03174461776818
+"Organism|Liver|B","Volume","C_max",0
+"Organism|Liver|B","Q","C_max",0
+"Organism|Liver|B","R1-k1","C_max",0.135061724163806
+"Organism|Liver|B","Volume","t_max",0
+"Organism|Liver|B","Q","t_max",0
+"Organism|Liver|B","R1-k1","t_max",0
+"Organism|Liver|B","Volume","C_tEnd",0
+"Organism|Liver|B","Q","C_tEnd",0
+"Organism|Liver|B","R1-k1","C_tEnd",0.135061724163806
+"Organism|Liver|B","Volume","AUC_tEnd",0
+"Organism|Liver|B","Q","AUC_tEnd",0
+"Organism|Liver|B","R1-k1","AUC_tEnd",0.31419658906824
+"Organism|Liver|B","Volume","Thalf",0.00262572897175011
+"Organism|Liver|B","Q","Thalf",0.00262572897175012
+"Organism|Liver|B","R1-k1","Thalf",2.08762142290653
diff --git a/inst/extdata/SimResults.csv b/inst/extdata/SimResults.csv
new file mode 100644
index 000000000..d37f2d317
--- /dev/null
+++ b/inst/extdata/SimResults.csv
@@ -0,0 +1,492 @@
+"IndividualId","Time [min]","Organism|PeripheralVenousBlood|Aciclovir|Plasma (Peripheral Venous Blood) [µmol/l]"
+0,0,0
+0,1,3.254674
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+0,1326,0.05059092
+0,1329,0.05000028
+0,1332,0.04941689
+0,1335,0.04884065
+0,1338,0.04827147
+0,1341,0.04770927
+0,1344,0.04715394
+0,1347,0.04660542
+0,1350,0.04606361
+0,1353,0.04552841
+0,1356,0.04499976
+0,1359,0.04447756
+0,1362,0.04396173
+0,1365,0.0434522
+0,1368,0.04294887
+0,1371,0.04245168
+0,1374,0.04196053
+0,1377,0.04147537
+0,1380,0.04099612
+0,1383,0.04052269
+0,1386,0.04005501
+0,1389,0.03959301
+0,1392,0.03913662
+0,1395,0.03868577
+0,1398,0.03824038
+0,1401,0.03780039
+0,1404,0.03736572
+0,1407,0.03693632
+0,1410,0.03651212
+0,1413,0.03609305
+0,1416,0.03567903
+0,1419,0.03527002
+0,1422,0.03486595
+0,1425,0.03446676
+0,1428,0.03407238
+0,1431,0.03368274
+0,1434,0.03329781
+0,1437,0.0329175
+0,1440,0.03254178
diff --git a/man/setParameterValuesByPath.Rd b/man/setParameterValuesByPath.Rd
index 39c70a8b9..d0818cc4b 100644
--- a/man/setParameterValuesByPath.Rd
+++ b/man/setParameterValuesByPath.Rd
@@ -4,7 +4,12 @@
 \alias{setParameterValuesByPath}
 \title{Set the values of parameters in the simulation by path}
 \usage{
-setParameterValuesByPath(parameterPaths, values, simulation)
+setParameterValuesByPath(
+  parameterPaths,
+  values,
+  simulation,
+  stopIfNotFound = TRUE
+)
 }
 \arguments{
 \item{parameterPaths}{A single or a list of parameter path}
@@ -14,6 +19,9 @@ of numeric values, if the value of more than one parameter should be changed. Mu
 length as 'parameterPaths'}
 
 \item{simulation}{Simulation uses to retrieve parameter instances from given paths.}
+
+\item{stopIfNotFound}{Boolean. If \code{TRUE} (default) and no parameter exists for the given path,
+an error is thrown. If \code{FALSE}, a warning is shown to the user}
 }
 \description{
 Set the values of parameters in the simulation by path
diff --git a/man/setQuantityValuesByPath.Rd b/man/setQuantityValuesByPath.Rd
index e19dd4011..90eb326ee 100644
--- a/man/setQuantityValuesByPath.Rd
+++ b/man/setQuantityValuesByPath.Rd
@@ -4,7 +4,12 @@
 \alias{setQuantityValuesByPath}
 \title{Set the values of parameters in the simulation by path}
 \usage{
-setQuantityValuesByPath(quantityPaths, values, simulation)
+setQuantityValuesByPath(
+  quantityPaths,
+  values,
+  simulation,
+  stopIfNotFound = TRUE
+)
 }
 \arguments{
 \item{quantityPaths}{A single or a list of absolute quantity path}
@@ -14,6 +19,9 @@ of numeric values, if the value of more than one quantity should be changed. Mus
 length as 'quantityPaths'}
 
 \item{simulation}{Simulation uses to retrieve quantity instances from given paths.}
+
+\item{stopIfNotFound}{Boolean. If \code{TRUE} (default) and no qyantuty exists for the given path,
+an error is thrown. If \code{FALSE}, a warning is shown to the user}
 }
 \description{
 Set the values of parameters in the simulation by path
diff --git a/tests/data/aging_data.csv b/tests/data/aging_data.csv
deleted file mode 100644
index 3a24aa40d..000000000
--- a/tests/data/aging_data.csv
+++ /dev/null
@@ -1,49 +0,0 @@
-IndividualId,ParameterPath,Time,Value
-0,Organism|Hematocrit,0,0.36
-0,Organism|Hematocrit,729890.2481,0.36
-0,Organism|Hematocrit,782486.2481,0.37
-0,Organism|Hematocrit,2833730.248,0.37
-0,Organism|Hematocrit,2886326.248,0.4
-0,Organism|Hematocrit,5989490.248,0.4
-0,Organism|Hematocrit,6042086.248,0.43
-0,Organism|Hematocrit,9145250.248,0.43
-0,Organism|Hematocrit,15456770.25,0.47
-0,Organism|Hematocrit,42280730.25,0.47
-1,Organism|Hematocrit,0,0.36
-1,Organism|Hematocrit,646841.7648,0.36
-1,Organism|Hematocrit,699437.7648,0.37
-1,Organism|Hematocrit,2750681.765,0.37
-1,Organism|Hematocrit,2803277.765,0.4
-1,Organism|Hematocrit,5906441.765,0.4
-1,Organism|Hematocrit,5959037.765,0.43
-1,Organism|Hematocrit,9062201.765,0.43
-1,Organism|Hematocrit,15373721.76,0.47
-1,Organism|Hematocrit,42197681.76,0.47
-2,Organism|Hematocrit,0,0.36
-2,Organism|Hematocrit,703032.9477,0.36
-2,Organism|Hematocrit,755628.9477,0.37
-2,Organism|Hematocrit,2806872.948,0.37
-2,Organism|Hematocrit,2859468.948,0.4
-2,Organism|Hematocrit,5962632.948,0.4
-2,Organism|Hematocrit,6015228.948,0.43
-2,Organism|Hematocrit,9118392.948,0.43
-2,Organism|Hematocrit,15429912.95,0.47
-2,Organism|Hematocrit,42253872.95,0.47
-3,Organism|Hematocrit,0,0.357347382
-3,Organism|Hematocrit,46501.04628,0.36
-3,Organism|Hematocrit,835441.0463,0.36
-3,Organism|Hematocrit,888037.0463,0.37
-3,Organism|Hematocrit,2939281.046,0.37
-3,Organism|Hematocrit,2991877.046,0.4
-3,Organism|Hematocrit,6095041.046,0.4
-3,Organism|Hematocrit,6147637.046,0.41
-3,Organism|Hematocrit,42386281.05,0.41
-4,Organism|Hematocrit,0,0.359636896
-4,Organism|Hematocrit,6365.309092,0.36
-4,Organism|Hematocrit,795305.3091,0.36
-4,Organism|Hematocrit,847901.3091,0.37
-4,Organism|Hematocrit,2899145.309,0.37
-4,Organism|Hematocrit,2951741.309,0.4
-4,Organism|Hematocrit,6054905.309,0.4
-4,Organism|Hematocrit,6107501.309,0.41
-4,Organism|Hematocrit,42346145.31,0.41
\ No newline at end of file
diff --git a/tests/dev/script-data-repository.R b/tests/dev/script-data-repository.R
index c5e4c7e41..0f916abf2 100644
--- a/tests/dev/script-data-repository.R
+++ b/tests/dev/script-data-repository.R
@@ -1,7 +1,7 @@
 library(ospsuite)
 
 # Load the obs data from a pkml file
-obsData <- loadDataRepositoryFromPKML("tests/data/obs_data.pkml")
+obsData <- loadDataRepositoryFromPKML("inst/extdata/obs_data.pkml")
 
 # get the meta data properties as a list
 metaData <- obsData$metaData
diff --git a/tests/dev/script-population.R b/tests/dev/script-population.R
index 726d0ad73..a06b02797 100644
--- a/tests/dev/script-population.R
+++ b/tests/dev/script-population.R
@@ -23,6 +23,6 @@ res <- runSimulation(simulation = sim, population = population)
 
 agingData_baby <- loadAgingDataFromCSV("tests/data/baby_aging.csv")
 
-aging_data <- loadAgingDataFromCSV("tests/data/aging_data.csv")
+aging_data <- loadAgingDataFromCSV("inst/extdata/aging_data.csv")
 
 res <- runSimulation(simulation = sim, population = population, agingData = aging_data)
diff --git a/vignettes/create-individual.Rmd b/vignettes/create-individual.Rmd
index c7533bfdf..29d70d7be 100644
--- a/vignettes/create-individual.Rmd
+++ b/vignettes/create-individual.Rmd
@@ -48,7 +48,8 @@ The output contains two lists of parameters - `distributedParameters` and `deriv
 library(ospsuite)
 
 # Load simulation
-simFilePath <- file.path(getwd(), "..", "tests", "data", "Aciclovir.pkml", fsep = .Platform$file.sep)
+simFilePath <- system.file("extdata", "Aciclovir.pkml", package = "ospsuite")
+print(simFilePath)
 sim <- loadSimulation(simFilePath)
 
 # Apply individual parameters
diff --git a/vignettes/create-run-population.Rmd b/vignettes/create-run-population.Rmd
index 0042c4a2f..4fde40f93 100644
--- a/vignettes/create-run-population.Rmd
+++ b/vignettes/create-run-population.Rmd
@@ -24,7 +24,7 @@ The method `loadPopulation` creates an object of the `Population` class that can
 ```{r loadPop}
 library(ospsuite)
 # Load population information from csv
-popFilePath <- file.path(getwd(), "..", "tests", "data", "pop_10.csv", fsep = .Platform$file.sep)
+popFilePath <- system.file("extdata", "pop.csv", package = "ospsuite")
 myPopulation <- loadPopulation(csvPopulationFile = popFilePath)
 print(myPopulation)
 ```
@@ -64,7 +64,7 @@ To run a population simulation, the `Population` object created by the `createPo
 library(ospsuite)
 
 # Load simulation
-simFilePath <- file.path(getwd(), "..", "tests", "data", "Aciclovir.pkml", fsep = .Platform$file.sep)
+simFilePath <- system.file("extdata", "Aciclovir.pkml", package = "ospsuite")
 sim <- loadSimulation(simFilePath)
 
 # Run population simulation
@@ -77,7 +77,7 @@ The user can change the default behavior by providing custom `SimulationRunOptio
 
 ```{r simulationRunOptions}
 # Load simulation
-simFilePath <- file.path(getwd(), "..", "tests", "data", "Aciclovir.pkml", fsep = .Platform$file.sep)
+simFilePath <- system.file("extdata", "Aciclovir.pkml", package = "ospsuite")
 sim <- loadSimulation(simFilePath)
 
 # Create a SimulationRunOptions object
diff --git a/vignettes/load-get.Rmd b/vignettes/load-get.Rmd
index 0fd19edf0..98264b879 100644
--- a/vignettes/load-get.Rmd
+++ b/vignettes/load-get.Rmd
@@ -21,7 +21,7 @@ In general, every workflow starts with loading a simulation by calling the `load
 ```{r loadSim}
 library(ospsuite)
 
-simFilePath <- file.path(getwd(), "..", "tests", "data", "Aciclovir.pkml", fsep = .Platform$file.sep)
+simFilePath <- system.file("extdata", "Aciclovir.pkml", package = "ospsuite")
 
 sim <- loadSimulation(simFilePath)
 ```
@@ -123,7 +123,7 @@ A convenient way to traverse the simulation structure is given by the method \co
 
 ```{r simTree}
 # Load simulation
-simFilePath <- file.path(getwd(), "..", "tests", "data", "Aciclovir.pkml", fsep = .Platform$file.sep)
+simFilePath <- system.file("extdata", "Aciclovir.pkml", package = "ospsuite")
 sim <- loadSimulation(simFilePath)
 
 # Create simulation tree
diff --git a/vignettes/pk-analysis.Rmd b/vignettes/pk-analysis.Rmd
index 6db112cb2..8f76d2e4e 100644
--- a/vignettes/pk-analysis.Rmd
+++ b/vignettes/pk-analysis.Rmd
@@ -22,7 +22,7 @@ PK parameters such as AUC, C_max, etc., can be calculated for all outputs of a s
 library(ospsuite)
 
 # Load  the simulation
-simFilePath <- file.path(getwd(), "..", "tests", "data", "Aciclovir.pkml", fsep = .Platform$file.sep)
+simFilePath <- system.file("extdata", "Aciclovir.pkml", package = "ospsuite")
 sim <- loadSimulation(simFilePath)
 
 # Run the simulation
@@ -65,7 +65,7 @@ Population analysis calculated in R can be exported to a *.csv file and loaded i
 
 ```{r PKAnalysesExport}
 # Load and run the simulation
-simFilePath <- file.path(getwd(), "..", "tests", "data", "Aciclovir.pkml", fsep = .Platform$file.sep)
+simFilePath <- system.file("extdata", "Aciclovir.pkml", package = "ospsuite")
 sim <- loadSimulation(simFilePath)
 simulationResults <- runSimulation(simulation = sim)
 
@@ -73,7 +73,7 @@ simulationResults <- runSimulation(simulation = sim)
 pkAnalysis <- calculatePKAnalyses(results = simulationResults)
 
 # Export to csv
-csvPKAnalysisPath <- file.path(getwd(), "..", "tests", "data", "PKAnalyses.csv", fsep = .Platform$file.sep)
+csvPKAnalysisPath <- system.file("extdata", "PKAnalyses.csv", package = "ospsuite")
 exportPKAnalysesToCSV(pkAnalyses = pkAnalysis, filePath = csvPKAnalysisPath)
 
 # Load from csv
diff --git a/vignettes/run-simulation.Rmd b/vignettes/run-simulation.Rmd
index 18055ffb8..ebbe9e3bf 100644
--- a/vignettes/run-simulation.Rmd
+++ b/vignettes/run-simulation.Rmd
@@ -22,7 +22,7 @@ Once the simulation is loaded (see [Loading a simulation and accessing entities]
 library(ospsuite)
 
 # Load the simulation
-simFilePath <- file.path(getwd(), "..", "tests", "data", "Aciclovir.pkml", fsep = .Platform$file.sep)
+simFilePath <- system.file("extdata", "Aciclovir.pkml", package = "ospsuite")
 sim <- loadSimulation(simFilePath)
 
 simulationResults <- runSimulation(simulation = sim)
@@ -67,12 +67,12 @@ The results can be stored in and imported from a *.csv file with the methods `ex
 
 ```{r SimResultsExport}
 # Load and run the simulation
-simFilePath <- file.path(getwd(), "..", "tests", "data", "Aciclovir.pkml", fsep = .Platform$file.sep)
+simFilePath <- system.file("extdata", "Aciclovir.pkml", package = "ospsuite")
 sim <- loadSimulation(simFilePath)
 simulationResults <- runSimulation(simulation = sim)
 
 # Export to csv
-csvResultsPath <- file.path(getwd(), "..", "tests", "data", "SimResults.csv", fsep = .Platform$file.sep)
+csvResultsPath <- system.file("extdata", "SimResults.csv", package = "ospsuite")
 exportResultsToCSV(results = simulationResults, filePath = csvResultsPath)
 
 # Load from csv
diff --git a/vignettes/sensitivity-analysis.Rmd b/vignettes/sensitivity-analysis.Rmd
index 9b278483c..1e279bdb7 100644
--- a/vignettes/sensitivity-analysis.Rmd
+++ b/vignettes/sensitivity-analysis.Rmd
@@ -26,7 +26,7 @@ The first step of performing a sensitivity analysis is creating an object of the
 library(ospsuite)
 
 # Load simulation
-simFilePath <- file.path(getwd(), "..", "tests", "data", "simple.pkml", fsep = .Platform$file.sep)
+simFilePath <- system.file("extdata", "simple.pkml", package = "ospsuite")
 sim <- loadSimulation(simFilePath)
 
 # Get the paths of parameters that will be considered by default.
@@ -52,7 +52,7 @@ New parameters can be added to an existing `SensitivityAnalysis` by calling the
 library(ospsuite)
 
 # Load simulation
-simFilePath <- file.path(getwd(), "..", "tests", "data", "simple.pkml", fsep = .Platform$file.sep)
+simFilePath <- system.file("extdata", "simple.pkml", package = "ospsuite")
 sim <- loadSimulation(simFilePath)
 
 # Create a `SensitivityAnalysis` with specified parameters
@@ -69,7 +69,7 @@ To run the specified `SensitivityAnalysis`, call the method `runSensitivityAnaly
 
 ```{r runSA}
 # Load simulation
-simFilePath <- file.path(getwd(), "..", "tests", "data", "simple.pkml", fsep = .Platform$file.sep)
+simFilePath <- system.file("extdata", "simple.pkml", package = "ospsuite")
 sim <- loadSimulation(simFilePath)
 
 # Create a `SensitivityAnalysis` with all constant and suitable for sensitivity calculations parameters and suitable for sensitivity calculations parameters
@@ -83,7 +83,7 @@ The method `allPKParameterSensitivitiesFor` returns a list of `PKParameterSensit
 
 ```{r allPKParameterSensitivitiesFor}
 # Load simulation
-simFilePath <- file.path(getwd(), "..", "tests", "data", "Aciclovir.pkml", fsep = .Platform$file.sep)
+simFilePath <- system.file("extdata", "Aciclovir.pkml", package = "ospsuite")
 sim <- loadSimulation(simFilePath)
 
 # Default value of the threshold
@@ -109,7 +109,7 @@ Sensitivity analysis calculated in R can be exported to a *.csv file, which can
 
 ```{r SAExport}
 # Load and run the simulation
-simFilePath <- file.path(getwd(), "..", "tests", "data", "simple.pkml", fsep = .Platform$file.sep)
+simFilePath <- system.file("extdata", "simple.pkml", package = "ospsuite")
 sim <- loadSimulation(simFilePath)
 simulationResults <- runSimulation(simulation = sim)
 
@@ -118,7 +118,7 @@ sa <- SensitivityAnalysis$new(simulation = sim)
 saResult <- runSensitivityAnalysis(sa)
 
 # Export to csv
-saResultPath <- file.path(getwd(), "..", "tests", "data", "SAResult.csv", fsep = .Platform$file.sep)
+saResultPath <- system.file("extdata", "SAResult.csv", package = "ospsuite")
 exportSensitivityAnalysisResultsToCSV(results = saResult, filePath = saResultPath)
 
 # Load from csv
diff --git a/vignettes/set-values.Rmd b/vignettes/set-values.Rmd
index 902d57c2a..c979c5e4e 100644
--- a/vignettes/set-values.Rmd
+++ b/vignettes/set-values.Rmd
@@ -29,7 +29,7 @@ Every (initial) value is described either by a constant or by a formula. If the
 library(ospsuite)
 
 # Load simulation
-simFilePath <- file.path(getwd(), "..", "tests", "data", "Aciclovir.pkml", fsep = .Platform$file.sep)
+simFilePath <- system.file("extdata", "Aciclovir.pkml", package = "ospsuite")
 sim <- loadSimulation(simFilePath)
 
 #Get the parameter "Age" of the Organism
diff --git a/vignettes/table-parameters.Rmd b/vignettes/table-parameters.Rmd
index e55fa6e9d..a68f28051 100644
--- a/vignettes/table-parameters.Rmd
+++ b/vignettes/table-parameters.Rmd
@@ -22,7 +22,7 @@ Parameters defined by a **table formula** have special syntax of retrieving and
 library(ospsuite)
 
 # Load a simulation
-simFilePath <- file.path(getwd(), "..", "tests", "data", "Aciclovir.pkml", fsep = .Platform$file.sep)
+simFilePath <- system.file("extdata", "Aciclovir.pkml", package = "ospsuite")
 sim <- loadSimulation(simFilePath)
 
 #Get the parameter defined by a table.
diff --git a/vignettes/unit-conversion.Rmd b/vignettes/unit-conversion.Rmd
index 4bd53c9d7..cc381a34c 100644
--- a/vignettes/unit-conversion.Rmd
+++ b/vignettes/unit-conversion.Rmd
@@ -21,7 +21,7 @@ Every entity - a molecule, a parameter, or an observer - has a certain dimension
 ```{r dimension}
 library(ospsuite)
 # Load a simulation
-simFilePath <- file.path(getwd(), "..", "tests", "data", "Aciclovir.pkml", fsep = .Platform$file.sep)
+simFilePath <- system.file("extdata", "Aciclovir.pkml", package = "ospsuite")
 sim <- loadSimulation(simFilePath)
 
 #Get the parameter volume of the liver.