diff --git a/src/main/scala/scim/components/Parser.scala b/src/main/scala/scim/components/Parser.scala
index 6f818d5..0a6ab6a 100644
--- a/src/main/scala/scim/components/Parser.scala
+++ b/src/main/scala/scim/components/Parser.scala
@@ -1,6 +1,6 @@
 package scim.components
 
-import scim.datastruct.{Behaviour, BehaviourVector, Cell, Configuration, FunctionArgs, GroundTruth, Group, Sensor, SensorCount, SharedMemory, SimulationBehaviours, SimulationConfig, Time, Truth}
+import scim.datastruct.{Behaviour, BehaviourVector, Cell, Configuration, FunctionArgs, GroundTruth, Group, Sensor, SensorCount, SensorResult, SharedMemory, SimulationBehaviours, SimulationConfig, Time, Truth}
 import scim.lib.ConcurrentBroadcast.BroadcastObject
 import scim.lib.debugUtil.{DebugType, debugf}
 import scim.lib.mapUtil._
@@ -11,10 +11,9 @@ import scim.lib.yml
 import scala.collection.mutable
 
 class Parser() {
-  def parse(file: String, simulationBehaviours: SimulationBehaviours): Option[Configuration] = {
+  def parse(file: String, simulationBehaviours: SimulationBehaviours): Configuration = {
     val parser = new SimulationConfigParser(yml.parse(file), simulationBehaviours)
     parser.parse()
-    None // FIXME: this should return something
   }
 
 }
@@ -38,7 +37,7 @@ class SimulationConfigParser(input: Map[String, Any], simulationBehaviours: Simu
   private val groundTruthValues = mutable.Map[Time, mutable.Map[Group, Truth]]() // FIXME: are not parsed correctly
   // this will throw if the map doesn't contain what it should
   @throws(classOf[Exception])
-  def parse(): Unit = {
+  def parse(): Configuration = {
 
     val sensors = input("sensors").asInstanceOf[Vector[Map[String, Any]]]
     val groundTruths = input("groundtruths").asInstanceOf[Vector[Map[String, Any]]]
@@ -55,13 +54,24 @@ class SimulationConfigParser(input: Map[String, Any], simulationBehaviours: Simu
     //populate configuration
     val configurationMapping = sensorList.map(cell => cell._1 -> cellMapper(cell._1, cell._2.toMap)).toMap
 
-    
+    // construct shared memory sensor
+    val sharedMemorySensor = Vector.tabulate(config.duration)(t => (Time(t, config.duration), sensorList.map(kv => kv._1 -> kv._2.map(kv2 => kv2._1 -> Vector.tabulate(kv2._2.count)(_ => SensorResult(new BroadcastObject()))).toMap).toMap))
 
+    def truthHelper(cell: Cell, list: Map[Group, List[(Group, Sensor, Option[GroundTruth])]]): (Cell, Map[Group, Truth]) = {
+      val groupList: mutable.Map[Group, Truth] = mutable.Map()
+      list.foreach(kv => kv._2.foreach(e => groupList(e._1) = Truth(new BroadcastObject())))
+      cell -> groupList.toMap
+    }
 
-    //TODO: initialize shared memory
-    //TODO: add ground truth preconfigured to shared memory
+    val sharedMemoryTruth = Vector.tabulate(config.duration)(t => (Time(t, config.duration), configurationMapping.map(a => truthHelper(a._1, a._2))))
 
-    Unit
+    val sharedMemorySensorMap = traversableToMap[Time, Map[Cell, Map[Group, Vector[SensorResult]]]](sharedMemorySensor)
+
+    val sharedMemoryTruthMap = traversableToMap[Time, Map[Cell, Map[Group, Truth]]](sharedMemoryTruth)
+
+    val sharedMemory = SharedMemory(sharedMemorySensorMap, sharedMemoryTruthMap, groundTruthValues.map(kv => kv._1 -> kv._2.toMap).toMap, config, groups.toMap, Vector.tabulate(config.duration)(_ => new BroadcastObject[Boolean]()))
+
+    Configuration(configurationMapping, sharedMemory)
   }
 
   private def parseSimulationConfig(configInput: Map[String, Any]): SimulationConfig = {
@@ -165,7 +175,6 @@ class SimulationConfigParser(input: Map[String, Any], simulationBehaviours: Simu
     } ))
     val timeVector: mutable.ArraySeq[Option[(SimulationBehaviour, Option[FunctionArgs])]] = new mutable.ArraySeq[Option[(SimulationBehaviour, Option[FunctionArgs])]](config.duration).map(_ => None)
     val it = parsedFunction.toList.sortBy(_._1).iterator
-    println(parsedFunction.toList.sortBy(_._1))
     var current = if(it.hasNext) Some(it.next) else None
     while(!current.isEmpty) {
       val next = if(it.hasNext) Some(it.next) else None