diff --git a/src/main/java/mvd/jester/App.java b/src/main/java/mvd/jester/App.java
index 9cf2331..1770f40 100644
--- a/src/main/java/mvd/jester/App.java
+++ b/src/main/java/mvd/jester/App.java
@@ -1,9 +1,7 @@
 package mvd.jester;
 
+import java.io.File;
 import mvd.jester.model.SystemSetup;
-import mvd.jester.tests.MaiaBertogna;
-import mvd.jester.tests.SchmidMottok;
-import mvd.jester.tests.TestEnvironment;
 
 /**
  * Hello world!
@@ -11,14 +9,39 @@ import mvd.jester.tests.TestEnvironment;
  */
 public class App {
     public static void main(String[] args) {
-        SystemSetup.Builder builder = new SystemSetup.Builder().setNumberOfProcessors(8);
+        boolean runTests = false;
+        if (runTests) {
 
-        TestEnvironment te = new TestEnvironment(builder, 40000);
+            SystemSetup.Builder builder = new SystemSetup.Builder().setNumberOfProcessors(8);
 
-        te.registerTestInterface(SchmidMottok.class);
-        te.registerTestInterface(MaiaBertogna.class);
+            TestEnvironment te = new TestEnvironment(builder, 40000);
+
+            // te.registerTestInterface(SchmidMottok.class);
+            te.registerTestPair(mvd.jester.tests.MaiaBertogna.class,
+                    mvd.jester.simulator.MaiaBertogna.class);
+
+
+            te.runTests();
+        } else {
+            File folder = new File("results");
+
+            for (File f : folder.listFiles()) {
+                SystemSetup systemSetup = SystemSetup.fromFile(f.toPath().toString());
+
+                mvd.jester.simulator.MaiaBertogna mb_sim =
+                        new mvd.jester.simulator.MaiaBertogna(systemSetup);
+                mvd.jester.tests.MaiaBertogna mb_test =
+                        new mvd.jester.tests.MaiaBertogna(systemSetup);
+
+                boolean simCheck = mb_sim.runSimulation();
+                boolean schedCheck = mb_test.runSchedulabilityCheck();
+
+                if (simCheck == false && schedCheck == true) {
+                    System.out.println(f.getName());
+                }
+            }
+        }
 
-        te.runTests();
 
     }
 }
diff --git a/src/main/java/mvd/jester/TestEnvironment.java b/src/main/java/mvd/jester/TestEnvironment.java
new file mode 100644
index 0000000..b2c88d2
--- /dev/null
+++ b/src/main/java/mvd/jester/TestEnvironment.java
@@ -0,0 +1,175 @@
+package mvd.jester;
+
+import java.io.PrintWriter;
+import java.lang.reflect.Constructor;
+import java.time.LocalTime;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import mvd.jester.model.SystemSetup;
+import mvd.jester.simulator.AbstractSimulator;
+import mvd.jester.tests.AbstractTest;
+import mvd.jester.utils.Logger;
+
+/**
+ * TestEnvironment
+ */
+public class TestEnvironment {
+
+    private final long numberOfTaskSets;
+    private final SystemSetup systemSetup;
+    private final SystemSetup.Builder builder;
+    private final Map<Constructor<? extends AbstractTest>, Constructor<? extends AbstractSimulator>> abstractTestPairs;
+
+    public TestEnvironment(SystemSetup.Builder builder, long numberOfTaskSets) {
+        this.numberOfTaskSets = numberOfTaskSets;
+        abstractTestPairs = new HashMap<>();
+
+        this.builder = builder;
+        this.systemSetup = builder.build();
+    }
+
+    public TestEnvironment registerTestPair(Class<? extends AbstractTest> abstractTest,
+            Class<? extends AbstractSimulator> abstractSimulator) {
+        try {
+            abstractTestPairs.put(abstractTest.getConstructor(SystemSetup.class),
+                    abstractSimulator.getConstructor(SystemSetup.class));
+        } catch (Exception e) {
+            System.out.println("Missing constructor!");
+        }
+
+        return this;
+    }
+
+    public void runTests() {
+        Map<AbstractTest, AbstractSimulator> testPairs = new HashMap<>();
+
+        Map<Long, Map<AbstractTest, Long>> testResults = new HashMap<>();
+        Map<Long, Map<AbstractSimulator, Long>> simulatorResults = new HashMap<>();
+
+        for (Map.Entry<Constructor<? extends AbstractTest>, Constructor<? extends AbstractSimulator>> kv : abstractTestPairs
+                .entrySet()) {
+            try {
+                testPairs.put(kv.getKey().newInstance(this.systemSetup),
+                        kv.getValue().newInstance(this.systemSetup));
+            } catch (Exception e) {
+                System.out.println("Could not instantiate object of AbstractTest!");
+            }
+        }
+
+        long checkedTasksets = 0;
+
+        while (checkedTasksets < numberOfTaskSets) {
+            builder.rebuild(this.systemSetup);
+
+            double utilization = this.systemSetup.getUtilization();
+
+            while (utilization <= this.systemSetup.getNumberOfProcessors()
+                    && checkedTasksets < numberOfTaskSets) {
+                checkedTasksets++;
+
+                if (checkedTasksets % 100 == 0) {
+                    System.out.println(checkedTasksets + " bereits geschafft");
+                }
+
+                long roundedUtilization = (long) (utilization * 10);
+                for (Map.Entry<AbstractTest, AbstractSimulator> kv : testPairs.entrySet()) {
+                    boolean schedCheck = kv.getKey().runSchedulabilityCheck();
+                    boolean simCheck = kv.getValue().runSimulation();
+                    if (schedCheck) {
+                        testResults
+                                .computeIfAbsent(roundedUtilization,
+                                        k -> new HashMap<AbstractTest, Long>())
+                                .compute(kv.getKey(), (k, v) -> (v == null) ? 1 : v + 1);
+                    }
+                    if (simCheck) {
+                        simulatorResults
+                                .computeIfAbsent(roundedUtilization,
+                                        k -> new HashMap<AbstractSimulator, Long>())
+                                .compute(kv.getValue(), (k, v) -> (v == null) ? 1 : v + 1);
+                    }
+                    if (schedCheck == true && simCheck == false) {
+                        boolean sched = kv.getKey().runSchedulabilityCheck();
+                        boolean sim = kv.getValue().runSimulation();
+
+                        if (sched == true && sim == false) {
+                            try (PrintWriter out = new PrintWriter(
+                                    "results/manualCheck" + checkedTasksets + ".txt")) {
+                                out.println(systemSetup);
+                            } catch (Exception e) {
+                                System.out.println("Ähm something went horribly wrong!");
+                            }
+                        }
+                    }
+                }
+                builder.addTask(systemSetup);
+
+                utilization = this.systemSetup.getUtilization();
+            }
+        }
+
+        logResults(testPairs.keySet(), testResults);
+        logSimulations(new HashSet<AbstractSimulator>(testPairs.values()), simulatorResults);
+    }
+
+    private void logResults(Set<AbstractTest> testCases,
+            Map<Long, Map<AbstractTest, Long>> results) {
+        LocalTime date = LocalTime.now();
+        Logger log = new Logger("./results/results_" + systemSetup.getNumberOfProcessors() + "_"
+                + date.getHour() + ":" + date.getMinute() + ".txt");
+        String firstLine = new String("Utilization");
+
+        for (AbstractTest t : testCases) {
+            firstLine = firstLine + "\t" + t.getName();
+        }
+
+        log.log(firstLine);
+
+        for (Long util : results.keySet()) {
+            String line = String.valueOf((double) util / 10);
+            Map<AbstractTest, Long> tests = results.get(util);
+
+            for (AbstractTest t : testCases) {
+                if (tests.containsKey(t)) {
+                    line += "\t" + tests.get(t);
+                } else {
+                    line += "\t" + "0";
+                }
+            }
+            log.log(line);
+        }
+
+        log.finalize();
+    }
+
+    private void logSimulations(Set<AbstractSimulator> testCases,
+            Map<Long, Map<AbstractSimulator, Long>> results) {
+        LocalTime date = LocalTime.now();
+        Logger log = new Logger("./results/results_sim_" + systemSetup.getNumberOfProcessors() + "_"
+                + date.getHour() + ":" + date.getMinute() + ".txt");
+        String firstLine = new String("Utilization");
+
+        for (AbstractSimulator t : testCases) {
+            firstLine = firstLine + "\t" + t.getName();
+        }
+
+        log.log(firstLine);
+
+        for (Long util : results.keySet()) {
+            String line = String.valueOf((double) util / 10);
+            Map<AbstractSimulator, Long> tests = results.get(util);
+
+            for (AbstractSimulator t : testCases) {
+                if (tests.containsKey(t)) {
+                    line += "\t" + tests.get(t);
+                } else {
+                    line += "\t" + "0";
+                }
+            }
+            log.log(line);
+        }
+
+        log.finalize();
+    }
+}
diff --git a/src/main/java/mvd/jester/model/Segment.java b/src/main/java/mvd/jester/model/Segment.java
index 1693911..8c45b89 100644
--- a/src/main/java/mvd/jester/model/Segment.java
+++ b/src/main/java/mvd/jester/model/Segment.java
@@ -1,6 +1,6 @@
 package mvd.jester.model;
 
-import com.google.common.math.LongMath;
+// import com.google.common.math.LongMath;
 
 public class Segment {
 
diff --git a/src/main/java/mvd/jester/model/SortedTaskSet.java b/src/main/java/mvd/jester/model/SortedTaskSet.java
index 0c08913..bdcc22b 100644
--- a/src/main/java/mvd/jester/model/SortedTaskSet.java
+++ b/src/main/java/mvd/jester/model/SortedTaskSet.java
@@ -1,7 +1,14 @@
 package mvd.jester.model;
 
+import java.lang.reflect.Type;
 import java.util.TreeSet;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonDeserializationContext;
+import com.google.gson.JsonDeserializer;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonParseException;
 import mvd.jester.priority.PriorityManager;
+import mvd.jester.priority.RateMonotonic;
 
 /**
  * SortedTaskSet
@@ -13,4 +20,20 @@ public class SortedTaskSet extends TreeSet<Task> {
     public SortedTaskSet(PriorityManager priorityMananger) {
         super((t1, t2) -> priorityMananger.compare(t1, t2));
     }
+
+    public static class Deserializer implements JsonDeserializer<SortedTaskSet> {
+
+        @Override
+        public SortedTaskSet deserialize(JsonElement json, Type typeOfT,
+                JsonDeserializationContext context) throws JsonParseException {
+            SortedTaskSet taskSet = new SortedTaskSet(new RateMonotonic());
+            if (json.isJsonArray()) {
+                JsonArray array = json.getAsJsonArray();
+                array.forEach(e -> {
+                    taskSet.add(context.deserialize(e, Task.class));
+                });
+            }
+            return taskSet;
+        }
+    }
 }
diff --git a/src/main/java/mvd/jester/model/SystemSetup.java b/src/main/java/mvd/jester/model/SystemSetup.java
index 4cf81ff..dc97c8e 100644
--- a/src/main/java/mvd/jester/model/SystemSetup.java
+++ b/src/main/java/mvd/jester/model/SystemSetup.java
@@ -1,8 +1,14 @@
 package mvd.jester.model;
 
+import java.io.IOException;
+import java.nio.charset.Charset;
+import java.nio.file.Files;
+import java.nio.file.Paths;
 import java.util.LinkedHashSet;
 import java.util.Set;
 import java.util.concurrent.ThreadLocalRandom;
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
 import mvd.jester.priority.PriorityManager;
 import mvd.jester.priority.RateMonotonic;
 
@@ -45,6 +51,33 @@ public class SystemSetup {
         return utilization;
     }
 
+    @Override
+    public String toString() {
+        Gson gson = new GsonBuilder().setPrettyPrinting().create();
+        return gson.toJson(tasks);
+    }
+
+    public static SystemSetup fromFile(String path) {
+        String jsonString;
+        try {
+            byte[] encoded = Files.readAllBytes(Paths.get(path));
+            jsonString = new String(encoded, Charset.defaultCharset());
+        } catch (IOException e) {
+            System.out.println(e.getMessage());
+            jsonString = new String("");
+        }
+        return SystemSetup.fromString(jsonString);
+    }
+
+    public static SystemSetup fromString(String json) {
+        Gson gson = new GsonBuilder()
+                .registerTypeAdapter(SortedTaskSet.class, new SortedTaskSet.Deserializer())
+                .create();
+
+        SortedTaskSet tasks = gson.fromJson(json, SortedTaskSet.class);
+        return new SystemSetup(tasks, 8);
+    }
+
     public static class Builder {
         private long numberOfProcessors = 4;
         private long minPeriod = 100;
diff --git a/src/main/java/mvd/jester/simulator/AbstractSimulator.java b/src/main/java/mvd/jester/simulator/AbstractSimulator.java
new file mode 100644
index 0000000..2c17afc
--- /dev/null
+++ b/src/main/java/mvd/jester/simulator/AbstractSimulator.java
@@ -0,0 +1,47 @@
+package mvd.jester.simulator;
+
+import java.util.HashSet;
+import java.util.Set;
+import com.google.common.math.LongMath;
+import mvd.jester.model.SystemSetup;
+import mvd.jester.model.Task;
+import mvd.jester.priority.RateMonotonic;
+import mvd.jester.simulator.internals.ProcessorContext;
+import mvd.jester.simulator.internals.SortedTaskContextSet;
+import mvd.jester.simulator.internals.TaskContext;
+
+
+/**
+ * AbstractSimulator
+ */
+public abstract class AbstractSimulator implements SimulatorInterface {
+
+    protected final SystemSetup systemSetup;
+    protected final Set<ProcessorContext> processors;
+    protected final SortedTaskContextSet readyTasks;
+    protected final long hyperPeriod;
+
+    AbstractSimulator(SystemSetup systemSetup) {
+        this.systemSetup = systemSetup;
+        this.readyTasks = new SortedTaskContextSet(new RateMonotonic());
+        processors = new HashSet<>();
+        for (int i = 0; i < systemSetup.getNumberOfProcessors(); ++i) {
+            processors.add(new ProcessorContext(i));
+        }
+        this.hyperPeriod = systemSetup.getTasks().last().getPeriod() * 10;
+        // LongMath.pow(systemSetup.getTasks().last().getPeriod(), 2);
+    }
+
+
+    protected boolean releaseTasks(long timeStep) {
+        for (Task t : systemSetup.getTasks()) {
+            if (timeStep % t.getPeriod() == 0) {
+                if (!readyTasks.add(new TaskContext(t, timeStep))) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+}
diff --git a/src/main/java/mvd/jester/simulator/MaiaBertogna.java b/src/main/java/mvd/jester/simulator/MaiaBertogna.java
new file mode 100644
index 0000000..193d8bd
--- /dev/null
+++ b/src/main/java/mvd/jester/simulator/MaiaBertogna.java
@@ -0,0 +1,62 @@
+package mvd.jester.simulator;
+
+import java.util.Comparator;
+import java.util.Optional;
+import java.util.TreeSet;
+import mvd.jester.model.SystemSetup;
+import mvd.jester.simulator.internals.ProcessorContext;
+import mvd.jester.simulator.internals.TaskContext;
+
+/**
+ * MaiaBertogna
+ */
+public class MaiaBertogna extends AbstractSimulator {
+
+    public MaiaBertogna(SystemSetup systemSetup) {
+        super(systemSetup);
+    }
+
+    @Override
+    public boolean runSimulation() {
+        readyTasks.clear();
+        for (int t = 0; t < hyperPeriod; ++t) {
+            if (!releaseTasks(t)) {
+                return false;
+            }
+
+            TreeSet<ProcessorContext> sortedProcessors =
+                    new TreeSet<>((p1, p2) -> (int) (!p1.getJob().isPresent() ? -1
+                            : !p2.getJob().isPresent() ? 1 : -1));
+
+            processors.forEach(p -> sortedProcessors.add(p));
+            for (ProcessorContext p : sortedProcessors) {
+                for (TaskContext tc : readyTasks) {
+                    if (p.acceptTask(tc, t)) {
+                        break;
+                    }
+                }
+
+            }
+
+            for (ProcessorContext p : processors) {
+                Optional<TaskContext> optionalTc = p.updateExecution(t);
+                if (optionalTc.isPresent()) {
+                    TaskContext tc = optionalTc.get();
+                    if (t >= tc.getDeadline()) {
+                        return false;
+                    }
+                    readyTasks.remove(optionalTc.get());
+                }
+            }
+        }
+
+        return true;
+    }
+
+    @Override
+    public String getName() {
+        return "MaiaBertogna";
+    }
+
+
+}
diff --git a/src/main/java/mvd/jester/simulator/SchmidMottok.java b/src/main/java/mvd/jester/simulator/SchmidMottok.java
new file mode 100644
index 0000000..bf1e7e8
--- /dev/null
+++ b/src/main/java/mvd/jester/simulator/SchmidMottok.java
@@ -0,0 +1,23 @@
+package mvd.jester.simulator;
+
+import mvd.jester.model.SystemSetup;
+
+/**
+ * SchmidMottok
+ */
+public class SchmidMottok extends AbstractSimulator {
+
+    SchmidMottok(SystemSetup systemSetup) {
+        super(systemSetup);
+    }
+
+    @Override
+    public boolean runSimulation() {
+        return false;
+    }
+
+    @Override
+    public String getName() {
+        return "SchmidMottok";
+    }
+}
diff --git a/src/main/java/mvd/jester/simulator/SimulatorInterface.java b/src/main/java/mvd/jester/simulator/SimulatorInterface.java
new file mode 100644
index 0000000..5f986fb
--- /dev/null
+++ b/src/main/java/mvd/jester/simulator/SimulatorInterface.java
@@ -0,0 +1,12 @@
+package mvd.jester.simulator;
+
+/**
+ * SimulatorInterface
+ */
+public interface SimulatorInterface {
+
+    public boolean runSimulation();
+
+    public String getName();
+
+}
diff --git a/src/main/java/mvd/jester/simulator/internals/JobContext.java b/src/main/java/mvd/jester/simulator/internals/JobContext.java
new file mode 100644
index 0000000..b2e82e5
--- /dev/null
+++ b/src/main/java/mvd/jester/simulator/internals/JobContext.java
@@ -0,0 +1,86 @@
+package mvd.jester.simulator.internals;
+
+import java.util.Optional;
+
+/**
+ * Job
+ * 
+ * @param <Job>
+ */
+public class JobContext {
+
+    private final TaskContext taskContext;
+    private final SegmentContext segmentContext;
+    private final long wcet;
+    private Optional<ProcessorContext> currentProcessor;
+    private long executionTime;
+
+
+    public JobContext(TaskContext taskContext, SegmentContext segmentContext) {
+        this.currentProcessor = Optional.empty();
+        this.taskContext = taskContext;
+        this.segmentContext = segmentContext;
+        this.wcet = segmentContext.getSegment().getJobWcet();
+        this.executionTime = wcet;
+    }
+
+    public Optional<TaskContext> updateExecution(long time) {
+        executionTime--;
+
+        if (executionTime == 0) {
+            // System.out.println("Time " + time + ": " + currentProcessor.get()
+            // + " finished execution of job " + this + "!");
+            currentProcessor.get().setJob(null);
+            currentProcessor = Optional.empty();
+            return taskContext.acceptNotification(time);
+        }
+
+        return Optional.empty();
+    }
+
+    public boolean checkExecutionTime() {
+        return executionTime > 0;
+    }
+
+    /**
+     * @return the wcet
+     */
+    public long getWcet() {
+        return wcet;
+    }
+
+    /**
+     * @param processor the currentProcessor to set
+     */
+    public void setCurrentProcessor(ProcessorContext processor) {
+        this.currentProcessor = Optional.ofNullable(processor);
+    }
+
+    /**
+     * @return the currentProcessor
+     */
+    public Optional<ProcessorContext> getCurrentProcessor() {
+        return currentProcessor;
+    }
+
+    /**
+     * @return the segmentContext
+     */
+    public SegmentContext getSegmentContext() {
+        return segmentContext;
+    }
+
+
+    /**
+     * @return the taskContext
+     */
+    public TaskContext getTaskContext() {
+        return taskContext;
+    }
+
+    @Override
+    public String toString() {
+        return "(jobWcet=" + wcet + ")";
+    }
+
+}
diff --git a/src/main/java/mvd/jester/simulator/internals/ProcessorContext.java b/src/main/java/mvd/jester/simulator/internals/ProcessorContext.java
new file mode 100644
index 0000000..1ca94fe
--- /dev/null
+++ b/src/main/java/mvd/jester/simulator/internals/ProcessorContext.java
@@ -0,0 +1,65 @@
+package mvd.jester.simulator.internals;
+
+import java.util.Optional;
+
+/**
+ * Processor
+ */
+public class ProcessorContext {
+
+    private Optional<JobContext> currentJob;
+    private final long processorId;
+
+    public ProcessorContext(long processorId) {
+        currentJob = Optional.empty();
+        this.processorId = processorId;
+    }
+
+    public void setJob(JobContext job) {
+        this.currentJob = Optional.ofNullable(job);
+    }
+
+    /**
+     * @return the currentJob
+     */
+    public Optional<JobContext> getJob() {
+        return currentJob;
+    }
+
+    public Optional<TaskContext> updateExecution(long time) {
+        if (currentJob.isPresent()) {
+            return currentJob.get().updateExecution(time);
+        }
+
+        return Optional.empty();
+    }
+
+
+    public boolean acceptTask(TaskContext taskContext, int t) {
+        if (!currentJob.isPresent() || currentJob.get().getTaskContext().getTask()
+                .getPeriod() > taskContext.getTask().getPeriod()) {
+            Optional<JobContext> optionalJob = taskContext.getNextJob();
+
+            if (optionalJob.isPresent()) {
+                if (currentJob.isPresent()) {
+                    currentJob.get().setCurrentProcessor(null);
+                }
+                currentJob = optionalJob;
+                currentJob.get().setCurrentProcessor(this);
+                // System.out.println("Time " + t + ": " + this + " started job " + currentJob
+                // + " of task" + taskContext + "!");
+                return true;
+            } else {
+                return false;
+            }
+        }
+
+        return false;
+    }
+
+    @Override
+    public String toString() {
+        return "Processor " + processorId;
+    }
+
+}
diff --git a/src/main/java/mvd/jester/simulator/internals/SegmentContext.java b/src/main/java/mvd/jester/simulator/internals/SegmentContext.java
new file mode 100644
index 0000000..a1fdeab
--- /dev/null
+++ b/src/main/java/mvd/jester/simulator/internals/SegmentContext.java
@@ -0,0 +1,49 @@
+package mvd.jester.simulator.internals;
+
+import java.util.HashSet;
+import java.util.Optional;
+import java.util.Set;
+import mvd.jester.model.Segment;
+
+/**
+ * Segment
+ */
+public class SegmentContext {
+    private final Segment segment;
+    private final Set<JobContext> jobs;
+    private final Set<TaskletContext> tasklets;
+
+    public SegmentContext(TaskContext taskContext, Segment segment) {
+        this.segment = segment;
+        jobs = new HashSet<>();
+        tasklets = new HashSet<>();
+
+        for (int j = 0; j < segment.getNumberOfJobs(); ++j) {
+            jobs.add(new JobContext(taskContext, this));
+        }
+
+        for (int t = 0; t < segment.getNumberOfTasklets(); ++t) {
+            tasklets.add(new TaskletContext(this));
+        }
+    }
+
+
+    /**
+     * @return the segment
+     */
+    public Segment getSegment() {
+        return segment;
+    }
+
+    Optional<JobContext> getNextJob() {
+        return jobs.stream()
+                .filter(j -> !j.getCurrentProcessor().isPresent() && j.checkExecutionTime())
+                .findFirst();
+    }
+
+
+    @Override
+    public String toString() {
+        return "(nJobs=" + segment.getNumberOfJobs() + ", jobWcet=" + segment.getJobWcet() + ")";
+    }
+}
diff --git a/src/main/java/mvd/jester/simulator/internals/SortedTaskContextSet.java b/src/main/java/mvd/jester/simulator/internals/SortedTaskContextSet.java
new file mode 100644
index 0000000..0c3521a
--- /dev/null
+++ b/src/main/java/mvd/jester/simulator/internals/SortedTaskContextSet.java
@@ -0,0 +1,17 @@
+package mvd.jester.simulator.internals;
+
+import java.util.TreeSet;
+import mvd.jester.priority.PriorityManager;
+
+/**
+ * SortedTaskContextSet
+ */
+public class SortedTaskContextSet extends TreeSet<TaskContext> {
+
+    private static final long serialVersionUID = 4808544133562675597L;
+
+    public SortedTaskContextSet(PriorityManager priorityMananger) {
+        super((t1, t2) -> priorityMananger.compare(t1.getTask(), t2.getTask()));
+    }
+}
+
diff --git a/src/main/java/mvd/jester/simulator/internals/TaskContext.java b/src/main/java/mvd/jester/simulator/internals/TaskContext.java
new file mode 100644
index 0000000..b07ab4b
--- /dev/null
+++ b/src/main/java/mvd/jester/simulator/internals/TaskContext.java
@@ -0,0 +1,79 @@
+package mvd.jester.simulator.internals;
+
+import java.util.ArrayList;
+import java.util.Optional;
+import mvd.jester.model.Segment;
+import mvd.jester.model.Task;
+
+/**
+ * TaskContext
+ */
+public class TaskContext {
+
+    private final Task task;
+    private final ArrayList<SegmentContext> segments;
+    private final long deadline;
+    private int currentSegment;
+    private int segmentCounter;
+
+
+    public TaskContext(Task task, long timeStep) {
+        this.task = task;
+        this.segments = new ArrayList<>();
+        this.currentSegment = 0;
+        this.segmentCounter = 0;
+        this.deadline = timeStep + task.getDeadline();
+
+        for (Segment s : task.getSegments()) {
+            segments.add(new SegmentContext(this, s));
+        }
+    }
+
+    /**
+     * @return the task
+     */
+    public Task getTask() {
+        return task;
+    }
+
+    /**
+     * @return the deadline
+     */
+    public long getDeadline() {
+        return deadline;
+    }
+
+    public Optional<TaskContext> acceptNotification(long time) {
+        segmentCounter++;
+
+        if (segmentCounter >= segments.get(currentSegment).getSegment().getNumberOfJobs()) {
+            currentSegment++;
+            segmentCounter = 0;
+            if (currentSegment >= segments.size()) {
+                // System.out.println("Time " + time + ": Task " + this + "finished!");
+                return Optional.of(this);
+            }
+        }
+
+
+        return Optional.empty();
+    }
+
+    public Optional<JobContext> getNextJob() {
+        if (currentSegment < segments.size()) {
+            Optional<JobContext> optionalJob = segments.get(currentSegment).getNextJob();
+            if (optionalJob.isPresent()) {
+                return optionalJob;
+            }
+        }
+
+        return Optional.empty();
+    }
+
+
+    @Override
+    public String toString() {
+        return "(period=" + task.getPeriod() + ", deadline=" + deadline + ", segments="
+                + segments.size() + ")";
+    }
+}
diff --git a/src/main/java/mvd/jester/simulator/internals/TaskletContext.java b/src/main/java/mvd/jester/simulator/internals/TaskletContext.java
new file mode 100644
index 0000000..6d9feb6
--- /dev/null
+++ b/src/main/java/mvd/jester/simulator/internals/TaskletContext.java
@@ -0,0 +1,19 @@
+package mvd.jester.simulator.internals;
+
+
+/**
+ * Tasklet
+ */
+public class TaskletContext {
+
+    private final SegmentContext segment;
+    private final long wcet;
+    private long executionTime;
+
+
+    public TaskletContext(SegmentContext segment) {
+        this.segment = segment;
+        this.wcet = segment.getSegment().getTaskletWcet();
+        this.executionTime = 0;
+    }
+}