diff --git a/module-server/src/main/kotlin/de/twomartens/timetable/model/common/Line.kt b/module-server/src/main/kotlin/de/twomartens/timetable/model/common/Line.kt
new file mode 100644
index 0000000..1985097
--- /dev/null
+++ b/module-server/src/main/kotlin/de/twomartens/timetable/model/common/Line.kt
@@ -0,0 +1,14 @@
+package de.twomartens.timetable.model.common
+
+import de.twomartens.timetable.types.NonEmptyString
+
+@JvmInline
+value class Line private constructor(val name: String) {
+    companion object {
+        val EMPTY = Line("EMPTY")
+
+        fun of(name: NonEmptyString): Line {
+            return Line(name.value)
+        }
+    }
+}
\ No newline at end of file
diff --git a/module-server/src/main/kotlin/de/twomartens/timetable/model/common/RotationId.kt b/module-server/src/main/kotlin/de/twomartens/timetable/model/common/RotationId.kt
new file mode 100644
index 0000000..f2af2a2
--- /dev/null
+++ b/module-server/src/main/kotlin/de/twomartens/timetable/model/common/RotationId.kt
@@ -0,0 +1,12 @@
+package de.twomartens.timetable.model.common
+
+import de.twomartens.timetable.types.PositiveInteger
+
+@JvmInline
+value class RotationId private constructor(val id: Int) {
+    companion object {
+        fun of(id: PositiveInteger): RotationId {
+            return RotationId(id.value)
+        }
+    }
+}
diff --git a/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/AdditionalService.kt b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/AdditionalService.kt
new file mode 100644
index 0000000..5b9c946
--- /dev/null
+++ b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/AdditionalService.kt
@@ -0,0 +1,17 @@
+package de.twomartens.timetable.model.dto
+
+import de.twomartens.timetable.model.common.FormationId
+import de.twomartens.timetable.model.common.Line
+import de.twomartens.timetable.model.common.ServiceId
+import java.time.LocalTime
+
+data class AdditionalService(
+        val id: ServiceId,
+        val line: Line,
+        val formationId: FormationId,
+        val direction: Direction,
+        val start: Station,
+        val destination: Station,
+        val serviceStartTime: LocalTime,
+        val stops: List<AdditionalServiceStop>
+)
diff --git a/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/AdditionalServiceStop.kt b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/AdditionalServiceStop.kt
new file mode 100644
index 0000000..52626f3
--- /dev/null
+++ b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/AdditionalServiceStop.kt
@@ -0,0 +1,12 @@
+package de.twomartens.timetable.model.dto
+
+import de.twomartens.timetable.types.NonEmptyString
+import java.time.LocalTime
+
+data class AdditionalServiceStop(
+        val stop: Station,
+        val arrivalTime: LocalTime,
+        val departureTime: LocalTime,
+        val platformAndSection: NonEmptyString,
+        val loading: Boolean
+)
diff --git a/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/Country.kt b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/Country.kt
new file mode 100644
index 0000000..5bcb65b
--- /dev/null
+++ b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/Country.kt
@@ -0,0 +1,9 @@
+package de.twomartens.timetable.model.dto
+
+import de.twomartens.timetable.model.common.CountryCode
+import de.twomartens.timetable.types.NonEmptyString
+
+data class Country(
+        val countryCode: CountryCode,
+        val name: NonEmptyString
+)
diff --git a/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/Direction.kt b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/Direction.kt
new file mode 100644
index 0000000..32896d1
--- /dev/null
+++ b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/Direction.kt
@@ -0,0 +1,6 @@
+package de.twomartens.timetable.model.dto
+
+enum class Direction {
+    LEFT,
+    RIGHT
+}
\ No newline at end of file
diff --git a/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/Formation.kt b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/Formation.kt
new file mode 100644
index 0000000..982ef6d
--- /dev/null
+++ b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/Formation.kt
@@ -0,0 +1,11 @@
+package de.twomartens.timetable.model.dto
+
+import de.twomartens.timetable.model.common.FormationId
+import de.twomartens.timetable.types.NonEmptyString
+
+data class Formation(
+        val id: FormationId,
+        val name: NonEmptyString,
+        val trainSimWorldFormationId: FormationId?,
+        val coaches: List<NonEmptyString>
+)
diff --git a/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/Rotation.kt b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/Rotation.kt
new file mode 100644
index 0000000..3aaad45
--- /dev/null
+++ b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/Rotation.kt
@@ -0,0 +1,14 @@
+package de.twomartens.timetable.model.dto
+
+import de.twomartens.timetable.model.common.FormationId
+import de.twomartens.timetable.model.common.RotationId
+import java.time.LocalTime
+
+data class Rotation(
+        val id: RotationId,
+        val formationId: FormationId,
+        val firstServiceStartTime: LocalTime,
+        val lastServiceEndTime: LocalTime,
+        val startsInVault: Boolean,
+
+        )
diff --git a/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/ServiceFormationStage.kt b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/ServiceFormationStage.kt
new file mode 100644
index 0000000..d4f1da1
--- /dev/null
+++ b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/ServiceFormationStage.kt
@@ -0,0 +1,15 @@
+package de.twomartens.timetable.model.dto
+
+import de.twomartens.timetable.model.common.FormationId
+import de.twomartens.timetable.model.common.Line
+import de.twomartens.timetable.model.common.ServiceId
+
+data class ServiceFormationStage(
+        val id: ServiceId,
+        val line: Line,
+        val direction: Direction,
+        val formation: FormationId,
+        val formationReversed: Boolean,
+        val startStop: ServiceStop,
+        val destinationStop: ServiceStop
+)
diff --git a/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/ServiceLinkingStage.kt b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/ServiceLinkingStage.kt
new file mode 100644
index 0000000..ca3f1ba
--- /dev/null
+++ b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/ServiceLinkingStage.kt
@@ -0,0 +1,18 @@
+package de.twomartens.timetable.model.dto
+
+import de.twomartens.timetable.model.common.FormationId
+import de.twomartens.timetable.model.common.Line
+import de.twomartens.timetable.model.common.ServiceId
+
+data class ServiceLinkingStage(
+        val id: ServiceId,
+        val formationId: FormationId,
+        val line: Line,
+        val direction: Direction,
+        val formationReversed: Boolean,
+        val startStop: ServiceStop,
+        val fromDepotOrSidingAtStart: Boolean,
+        val destinationStop: ServiceStop,
+        val fromDepotOrSidingAtDestination: Boolean,
+)
+
diff --git a/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/ServiceRotationStage.kt b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/ServiceRotationStage.kt
new file mode 100644
index 0000000..3b99f4a
--- /dev/null
+++ b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/ServiceRotationStage.kt
@@ -0,0 +1,16 @@
+package de.twomartens.timetable.model.dto
+
+import de.twomartens.timetable.model.common.Line
+import de.twomartens.timetable.model.common.ServiceId
+import de.twomartens.timetable.types.NonEmptyString
+
+data class ServiceRotationStage(
+        val id: ServiceId,
+        val line: Line,
+        val originStop: NonEmptyString,
+        val virtualDestinations: List<NonEmptyString>,
+        val startingFrom: NonEmptyString,
+        val endingIn: NonEmptyString,
+        val serviceStartTime: NonEmptyString,
+        val stops: List<ServiceStop>
+)
diff --git a/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/ServiceStop.kt b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/ServiceStop.kt
new file mode 100644
index 0000000..66b693b
--- /dev/null
+++ b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/ServiceStop.kt
@@ -0,0 +1,11 @@
+package de.twomartens.timetable.model.dto
+
+import de.twomartens.timetable.types.NonEmptyString
+
+data class ServiceStop(
+        val stop: Station,
+        val arrivalTime: String,
+        val departureTime: String,
+        val platform: NonEmptyString,
+        val section: String
+)
diff --git a/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/Station.kt b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/Station.kt
new file mode 100644
index 0000000..10199d4
--- /dev/null
+++ b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/Station.kt
@@ -0,0 +1,9 @@
+package de.twomartens.timetable.model.dto
+
+import de.twomartens.timetable.model.common.StationId
+import de.twomartens.timetable.types.NonEmptyString
+
+data class Station(
+        val id: StationId,
+        val name: NonEmptyString
+)
diff --git a/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/Timetable.kt b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/Timetable.kt
new file mode 100644
index 0000000..64576c8
--- /dev/null
+++ b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/Timetable.kt
@@ -0,0 +1,13 @@
+package de.twomartens.timetable.model.dto
+
+import de.twomartens.timetable.types.NonEmptyString
+import java.time.LocalDate
+
+data class Timetable(
+        val name: NonEmptyString,
+        val country: Country,
+        val routeName: NonEmptyString,
+        val fetchDate: LocalDate,
+        val state: TimetableState,
+        val numberOfServices: String
+)
diff --git a/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/TimetableState.kt b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/TimetableState.kt
new file mode 100644
index 0000000..6934eac
--- /dev/null
+++ b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/TimetableState.kt
@@ -0,0 +1,9 @@
+package de.twomartens.timetable.model.dto
+
+enum class TimetableState {
+    NEW,
+    PROCESSING,
+    ENTER_FORMATIONS,
+    LINK_SERVICES,
+    READY_FOR_USAGE
+}
\ No newline at end of file
diff --git a/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/TswRoute.kt b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/TswRoute.kt
new file mode 100644
index 0000000..6102420
--- /dev/null
+++ b/module-server/src/main/kotlin/de/twomartens/timetable/model/dto/TswRoute.kt
@@ -0,0 +1,13 @@
+package de.twomartens.timetable.model.dto
+
+import de.twomartens.timetable.model.common.Depot
+import de.twomartens.timetable.model.common.Portal
+import de.twomartens.timetable.types.NonEmptyString
+
+data class TswRoute(
+        val name: NonEmptyString,
+        val country: Country,
+        val stations: List<Station>,
+        val portals: List<Portal>,
+        val depots: List<Depot>
+)