diff --git a/src/storage/modelcomponents.cpp b/src/storage/modelcomponents.cpp
new file mode 100644
index 0000000..4521b96
--- /dev/null
+++ b/src/storage/modelcomponents.cpp
@@ -0,0 +1,37 @@
+#include "modelcomponents.h"
+#include "storm/models/sparse/StandardRewardModel.h"
+#include "storm/models/symbolic/StandardRewardModel.h"
+#include "storm/storage/sparse/ModelComponents.h"
+
+
+// or just template<typename ValueType> using ModelComponents = storm::storage::sparse::ModelComponents<ValueType>; todo
+template<typename ValueType> using StandardRewardModel = storm::models::sparse::StandardRewardModel<ValueType>;
+template<typename ValueType, typename RewardModelType = StandardRewardModel<ValueType>> using ModelComponents = storm::storage::sparse::ModelComponents<ValueType, RewardModelType>;
+
+void define_model_components(py::module& m) {
+
+    py::class_<ModelComponents<double, StandardRewardModel<double>>>(m, "ModelComponents", "ModelComponents description..")
+            //todo .def(py::init<...>)
+
+            // todo: readwrite or readonly?
+            // general components (for all model types)
+            .def_readwrite("transition_matrix", &ModelComponents<double, StandardRewardModel<double>>::transitionMatrix)
+            .def_readwrite("state_labeling", &ModelComponents<double, StandardRewardModel<double>>::stateLabeling)
+            .def_readwrite("reward_models", &ModelComponents<double, StandardRewardModel<double>>::rewardModels, "Reward models associated with the model")
+            .def_readwrite("choice_labeling", &ModelComponents<double, StandardRewardModel<double>>::choiceLabeling, "A vector that stores a labeling for each choic")
+            .def_readwrite("state_valuations", &ModelComponents<double, StandardRewardModel<double>>::stateValuations, "A vector that stores for each state to which variable valuation it belongs")
+            .def_readwrite("choice_origins", &ModelComponents<double, StandardRewardModel<double>>::choiceOrigins, "Stores for each choice from which parts of the input model description it originates")
+
+            // POMDP specific components
+            .def_readwrite("observability_classes", &ModelComponents<double, StandardRewardModel<double>>::observabilityClasses, "The POMDP observations")
+
+            // Continuous time specific components (CTMCs, Markov Automata):
+            .def_readwrite("rate_transitions", &ModelComponents<double, StandardRewardModel<double>>::rateTransitions, "True iff the transition values (for Markovian choices) are interpreted as rates")
+            .def_readwrite("exit_Rates", &ModelComponents<double, StandardRewardModel<double>>::exitRates, "The exit rate for each state. Must be given for CTMCs and MAs, if rate_transitions is false. Otherwise, it is optional.")
+            .def_readwrite("markovian_states", &ModelComponents<double, StandardRewardModel<double>>::markovianStates, "A vector that stores which states are markovian (only for Markov Automata)")
+
+            // Stochastic two player game specific components:
+            .def_readwrite("player1_matrix", &ModelComponents<double, StandardRewardModel<double>>::observabilityClasses, "Matrix of player 1 choices (needed for stochastic two player games")
+
+
+    ;
diff --git a/src/storage/modelcomponents.h b/src/storage/modelcomponents.h
new file mode 100644
index 0000000..cce0999
--- /dev/null
+++ b/src/storage/modelcomponents.h
@@ -0,0 +1,8 @@
+#ifndef PYSTORM_MODELCOMPONENTS_H
+#define PYSTORM_MODELCOMPONENTS_H
+
+#include "common.h"
+
+void define_model_cmponents(py::module& m);
+
+#endif /* PYSTORM_MODELCOMPONENTS_H */