diff --git a/CHANGELOG.md b/CHANGELOG.md
index fba19657..6cb6d28c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 # [unreleased]
 
+## Added
+
+- Add new `UnsignedByteField` class
+
 # [v5.0.0] 25.07.2022
 
 ## Changes
diff --git a/src/fsfw/objectmanager/SystemObjectIF.h b/src/fsfw/objectmanager/SystemObjectIF.h
index 72fe9044..99e26b9c 100644
--- a/src/fsfw/objectmanager/SystemObjectIF.h
+++ b/src/fsfw/objectmanager/SystemObjectIF.h
@@ -16,7 +16,7 @@
  * This is the typedef for object identifiers.
  * @ingroup system_objects
  */
-typedef uint32_t object_id_t;
+using object_id_t = uint32_t;
 
 /**
  * This interface allows a class to be included in the object manager
diff --git a/src/fsfw/serialize/SerializeIF.h b/src/fsfw/serialize/SerializeIF.h
index 5e7a2fb9..f20bf21f 100644
--- a/src/fsfw/serialize/SerializeIF.h
+++ b/src/fsfw/serialize/SerializeIF.h
@@ -68,13 +68,6 @@ class SerializeIF {
                                                   size_t maxSize) const {
     return serialize(buffer, size, maxSize, SerializeIF::Endianness::NETWORK);
   }
-  /**
-   * If endianness is not explicitly specified, use machine endianness
-   */
-  [[nodiscard]] virtual ReturnValue_t serialize(uint8_t **buffer, size_t *size,
-                                                size_t maxSize) const {
-    return serialize(buffer, size, maxSize, SerializeIF::Endianness::MACHINE);
-  }
 
   /**
    * Gets the size of a object if it would be serialized in a buffer
@@ -110,12 +103,6 @@ class SerializeIF {
   virtual ReturnValue_t deSerializeBe(const uint8_t **buffer, size_t *size) {
     return deSerialize(buffer, size, SerializeIF::Endianness::NETWORK);
   }
-  /**
-   * If endianness is not explicitly specified, use machine endianness
-   */
-  virtual ReturnValue_t deSerialize(const uint8_t **buffer, size_t *size) {
-    return deSerialize(buffer, size, SerializeIF::Endianness::MACHINE);
-  }
 
   /**
    * Helper method which can be used if serialization should be performed without any additional
@@ -139,13 +126,6 @@ class SerializeIF {
                                                   size_t maxSize) const {
     return serialize(buffer, serLen, maxSize, SerializeIF::Endianness::NETWORK);
   }
-  /**
-   * If endianness is not explicitly specified, use machine endianness
-   */
-  [[nodiscard]] virtual ReturnValue_t serialize(uint8_t *buffer, size_t &serLen,
-                                                size_t maxSize) const {
-    return serialize(buffer, serLen, maxSize, SerializeIF::Endianness::MACHINE);
-  }
 
   /**
    * Helper methods which can be used if deserialization should be performed without any additional
@@ -168,12 +148,6 @@ class SerializeIF {
   virtual ReturnValue_t deSerializeBe(const uint8_t *buffer, size_t &deserSize, size_t maxSize) {
     return deSerialize(buffer, deserSize, maxSize, SerializeIF::Endianness::NETWORK);
   }
-  /**
-   * If endianness is not explicitly specified, use machine endianness
-   */
-  virtual ReturnValue_t deSerialize(const uint8_t *buffer, size_t &deserSize, size_t maxSize) {
-    return deSerialize(buffer, deserSize, maxSize, SerializeIF::Endianness::MACHINE);
-  }
 };
 
 #endif /* FSFW_SERIALIZE_SERIALIZEIF_H_ */
diff --git a/src/fsfw/tmtcpacket/ccsds/PacketId.h b/src/fsfw/tmtcpacket/ccsds/PacketId.h
index 2c77652c..518b2d41 100644
--- a/src/fsfw/tmtcpacket/ccsds/PacketId.h
+++ b/src/fsfw/tmtcpacket/ccsds/PacketId.h
@@ -79,6 +79,9 @@ struct PacketId : public SerializeIF {
   ccsds::PacketType packetType = ccsds::PacketType::TM;
   bool secHeaderFlag = false;
   uint16_t apid = 0;
+
+  using SerializeIF::deSerialize;
+  using SerializeIF::serialize;
 };
 
 #endif  // FSFW_TMTCPACKET_PACKETID_H
diff --git a/src/fsfw/tmtcpacket/ccsds/PacketSeqCtrl.h b/src/fsfw/tmtcpacket/ccsds/PacketSeqCtrl.h
index cd4e153e..a1e73460 100644
--- a/src/fsfw/tmtcpacket/ccsds/PacketSeqCtrl.h
+++ b/src/fsfw/tmtcpacket/ccsds/PacketSeqCtrl.h
@@ -55,6 +55,9 @@ struct PacketSeqCtrl : public SerializeIF {
 
   ccsds::SequenceFlags seqFlags = ccsds::SequenceFlags::CONTINUATION;
   uint16_t seqCount = 0;
+
+  using SerializeIF::deSerialize;
+  using SerializeIF::serialize;
 };
 
 #endif  // FSFW_TMTCPACKET_PACKETSEQCTRL_H
diff --git a/src/fsfw/tmtcpacket/pus/tc/PusTcCreator.cpp b/src/fsfw/tmtcpacket/pus/tc/PusTcCreator.cpp
index 2e786e6e..e1b96945 100644
--- a/src/fsfw/tmtcpacket/pus/tc/PusTcCreator.cpp
+++ b/src/fsfw/tmtcpacket/pus/tc/PusTcCreator.cpp
@@ -103,13 +103,6 @@ ReturnValue_t PusTcCreator::setSerializableUserData(SerializeIF &serializable) {
   return HasReturnvaluesIF::RETURN_OK;
 }
 
-ReturnValue_t PusTcCreator::serialize(uint8_t **buffer, size_t *size, size_t maxSize) const {
-  return serialize(buffer, size, maxSize, SerializeIF::Endianness::NETWORK);
-}
-
-ReturnValue_t PusTcCreator::serialize(uint8_t *buffer, size_t &serLen, size_t maxSize) const {
-  return SerializeIF::serialize(buffer, serLen, maxSize, SerializeIF::Endianness::NETWORK);
-}
 void PusTcCreator::setup() {
   spCreator.setPacketType(ccsds::PacketType::TC);
   spCreator.setSecHeaderFlag();
diff --git a/src/fsfw/tmtcpacket/pus/tc/PusTcCreator.h b/src/fsfw/tmtcpacket/pus/tc/PusTcCreator.h
index ea6c1d58..72691c40 100644
--- a/src/fsfw/tmtcpacket/pus/tc/PusTcCreator.h
+++ b/src/fsfw/tmtcpacket/pus/tc/PusTcCreator.h
@@ -40,8 +40,6 @@ class PusTcCreator : public PusTcIF, public SerializeIF, public CustomUserDataIF
   PusTcParams &getPusParams();
   SpacePacketParams &getSpParams();
 
-  ReturnValue_t serialize(uint8_t **buffer, size_t *size, size_t maxSize) const override;
-  ReturnValue_t serialize(uint8_t *buffer, size_t &serLen, size_t maxSize) const override;
   [[nodiscard]] size_t getSerializedSize() const override;
 
   [[nodiscard]] uint16_t getPacketIdRaw() const override;
@@ -55,7 +53,11 @@ class PusTcCreator : public PusTcIF, public SerializeIF, public CustomUserDataIF
   ReturnValue_t setRawUserData(const uint8_t *data, size_t len) override;
   ReturnValue_t setSerializableUserData(SerializeIF &serializable) override;
 
+  // Load all big endian helpers into the class namespace
+  using SerializeIF::serializeBe;
+
  private:
+  // Forbidden to use, enforce big endian serialization
   ReturnValue_t serialize(uint8_t **buffer, size_t *size, size_t maxSize,
                           Endianness streamEndianness) const override;
   // Forbidden to use
diff --git a/src/fsfw/tmtcpacket/pus/tm/PusTmCreator.cpp b/src/fsfw/tmtcpacket/pus/tm/PusTmCreator.cpp
index 64dbbfeb..44172de3 100644
--- a/src/fsfw/tmtcpacket/pus/tm/PusTmCreator.cpp
+++ b/src/fsfw/tmtcpacket/pus/tm/PusTmCreator.cpp
@@ -150,11 +150,3 @@ void PusTmCreator::setSubservice(uint8_t subservice) {
   pusParams.secHeader.subservice = subservice;
 }
 bool PusTmCreator::crcCalculationEnabled() const { return calculateCrcOnSerialization; }
-
-ReturnValue_t PusTmCreator::serialize(uint8_t** buffer, size_t* size, size_t maxSize) const {
-  return serialize(buffer, size, maxSize, SerializeIF::Endianness::NETWORK);
-}
-
-ReturnValue_t PusTmCreator::serialize(uint8_t* buffer, size_t& serLen, size_t maxSize) const {
-  return SerializeIF::serialize(buffer, serLen, maxSize, SerializeIF::Endianness::NETWORK);
-}
\ No newline at end of file
diff --git a/src/fsfw/tmtcpacket/pus/tm/PusTmCreator.h b/src/fsfw/tmtcpacket/pus/tm/PusTmCreator.h
index 9f3dcd24..706a7b70 100644
--- a/src/fsfw/tmtcpacket/pus/tm/PusTmCreator.h
+++ b/src/fsfw/tmtcpacket/pus/tm/PusTmCreator.h
@@ -82,9 +82,6 @@ class PusTmCreator : public SerializeIF, public PusTmIF, public CustomUserDataIF
   uint8_t getScTimeRefStatus() override;
   uint16_t getMessageTypeCounter() override;
   uint16_t getDestId() override;
-  // Override these to use default big endianness
-  ReturnValue_t serialize(uint8_t** buffer, size_t* size, size_t maxSize) const override;
-  ReturnValue_t serialize(uint8_t* buffer, size_t& serLen, size_t maxSize) const override;
   ReturnValue_t serialize(uint8_t** buffer, size_t* size, size_t maxSize,
                           Endianness streamEndianness) const override;
   [[nodiscard]] size_t getSerializedSize() const override;
@@ -92,6 +89,9 @@ class PusTmCreator : public SerializeIF, public PusTmIF, public CustomUserDataIF
   ReturnValue_t setRawUserData(const uint8_t* data, size_t len) override;
   ReturnValue_t setSerializableUserData(SerializeIF& serializable) override;
 
+  // Load all big endian (network endian) helpers into scope
+  using SerializeIF::serializeBe;
+
  private:
   // Forbidden to use
   ReturnValue_t deSerialize(const uint8_t** buffer, size_t* size,
diff --git a/src/fsfw/util/UnsignedByteField.h b/src/fsfw/util/UnsignedByteField.h
new file mode 100644
index 00000000..3f4ee791
--- /dev/null
+++ b/src/fsfw/util/UnsignedByteField.h
@@ -0,0 +1,47 @@
+#ifndef FSFW_UTIL_UNSIGNEDBYTEFIELD_H
+#define FSFW_UTIL_UNSIGNEDBYTEFIELD_H
+
+#include "fsfw/serialize.h"
+
+template <typename T>
+class UnsignedByteField : public SerializeIF {
+ public:
+  static_assert(std::is_unsigned<T>::value);
+
+  explicit UnsignedByteField(T value) : value(value) {}
+  [[nodiscard]] ReturnValue_t serialize(uint8_t **buffer, size_t *size, size_t maxSize,
+                                        Endianness streamEndianness) const override {
+    return SerializeAdapter::serialize(&value, buffer, size, maxSize, streamEndianness);
+  }
+
+  ReturnValue_t deSerialize(const uint8_t **buffer, size_t *size,
+                            Endianness streamEndianness) override {
+    return SerializeAdapter::deSerialize(&value, buffer, size, streamEndianness);
+  }
+
+  [[nodiscard]] size_t getSerializedSize() const override { return sizeof(T); }
+
+  [[nodiscard]] T getValue() const { return value; }
+
+  void setValue(T value_) { value = value_; }
+
+ private:
+  T value;
+};
+
+class U32ByteField : public UnsignedByteField<uint32_t> {
+ public:
+  explicit U32ByteField(uint32_t value) : UnsignedByteField<uint32_t>(value) {}
+};
+
+class U16ByteField : public UnsignedByteField<uint16_t> {
+ public:
+  explicit U16ByteField(uint16_t value) : UnsignedByteField<uint16_t>(value) {}
+};
+
+class U8ByteField : public UnsignedByteField<uint8_t> {
+ public:
+  explicit U8ByteField(uint8_t value) : UnsignedByteField<uint8_t>(value) {}
+};
+
+#endif  // FSFW_UTIL_UNSIGNEDBYTEFIELD_H
diff --git a/src/fsfw_hal/devicehandlers/MgmRM3100Handler.cpp b/src/fsfw_hal/devicehandlers/MgmRM3100Handler.cpp
index b39ac852..e8f61b9f 100644
--- a/src/fsfw_hal/devicehandlers/MgmRM3100Handler.cpp
+++ b/src/fsfw_hal/devicehandlers/MgmRM3100Handler.cpp
@@ -305,7 +305,7 @@ void MgmRM3100Handler::fillCommandAndReplyMap() {
   insertInCommandAndReplyMap(RM3100::READ_DATA, 3, &primaryDataset);
 }
 
-void MgmRM3100Handler::modeChanged(void) { internalState = InternalState::NONE; }
+void MgmRM3100Handler::modeChanged() { internalState = InternalState::NONE; }
 
 ReturnValue_t MgmRM3100Handler::initializeLocalDataPool(localpool::DataPool &localDataPoolMap,
                                                         LocalDataPoolManager &poolManager) {
diff --git a/unittests/CMakeLists.txt b/unittests/CMakeLists.txt
index 28d950d4..fc03a728 100644
--- a/unittests/CMakeLists.txt
+++ b/unittests/CMakeLists.txt
@@ -15,6 +15,7 @@ add_subdirectory(mocks)
 
 add_subdirectory(action)
 add_subdirectory(power)
+add_subdirectory(util)
 add_subdirectory(container)
 add_subdirectory(osal)
 add_subdirectory(serialize)
diff --git a/unittests/serialize/testSerializeIF.cpp b/unittests/serialize/testSerializeIF.cpp
index 5200f8b7..7aafe98f 100644
--- a/unittests/serialize/testSerializeIF.cpp
+++ b/unittests/serialize/testSerializeIF.cpp
@@ -76,37 +76,6 @@ TEST_CASE("Serialize IF Serialize", "[serialize-if-ser]") {
     CHECK(buf[2] == 3);
     CHECK(serLen == 3);
   }
-
-  SECTION("Machine Endian Implicit") {
-    REQUIRE(simpleSer.SerializeIF::serialize(&ptr, &len, buf.size()) ==
-            HasReturnvaluesIF::RETURN_OK);
-    CHECK(buf[0] == 1);
-#if BYTE_ORDER_SYSTEM == LITTLE_ENDIAN
-    CHECK(buf[1] == 3);
-    CHECK(buf[2] == 2);
-#else
-    CHECK(buf[1] == 2);
-    CHECK(buf[2] == 3);
-#endif
-    // Verify pointer arithmetic and size increment
-    CHECK(ptr == buf.data() + 3);
-    CHECK(len == 3);
-  }
-
-  SECTION("Machine Endian Simple Implicit") {
-    size_t serLen = 0xff;
-    REQUIRE(simpleSer.SerializeIF::serialize(buf.data(), serLen, buf.size()) ==
-            HasReturnvaluesIF::RETURN_OK);
-    CHECK(buf[0] == 1);
-#if BYTE_ORDER_SYSTEM == LITTLE_ENDIAN
-    CHECK(buf[1] == 3);
-    CHECK(buf[2] == 2);
-#else
-    CHECK(buf[1] == 2);
-    CHECK(buf[2] == 3);
-#endif
-    CHECK(serLen == 3);
-  }
 }
 
 TEST_CASE("SerializeIF Deserialize", "[serialize-if-de]") {
@@ -172,30 +141,4 @@ TEST_CASE("SerializeIF Deserialize", "[serialize-if-de]") {
     CHECK(simpleSer.getU16() == 1);
     CHECK(deserLen == 3);
   }
-
-  SECTION("Machine Endian Implicit") {
-    REQUIRE(simpleSer.SerializeIF::deSerialize(&ptr, &len) == HasReturnvaluesIF::RETURN_OK);
-    CHECK(simpleSer.getU8() == 5);
-#if BYTE_ORDER_SYSTEM == LITTLE_ENDIAN
-    CHECK(simpleSer.getU16() == 0x0100);
-#else
-    CHECK(simpleSer.getU16() == 1);
-#endif
-    // Verify pointer arithmetic and size increment
-    CHECK(ptr == buf.data() + 3);
-    CHECK(len == 0);
-  }
-
-  SECTION("Machine Endian Simple Implicit") {
-    size_t deserLen = 0xff;
-    REQUIRE(simpleSer.SerializeIF::deSerialize(buf.data(), deserLen, buf.size()) ==
-            HasReturnvaluesIF::RETURN_OK);
-    CHECK(simpleSer.getU8() == 5);
-#if BYTE_ORDER_SYSTEM == LITTLE_ENDIAN
-    CHECK(simpleSer.getU16() == 0x0100);
-#else
-    CHECK(simpleSer.getU16() == 1);
-#endif
-    CHECK(deserLen == 3);
-  }
 }
\ No newline at end of file
diff --git a/unittests/tmtcpacket/testCcsds.cpp b/unittests/tmtcpacket/testCcsds.cpp
index 095020ae..7c88c0c6 100644
--- a/unittests/tmtcpacket/testCcsds.cpp
+++ b/unittests/tmtcpacket/testCcsds.cpp
@@ -60,9 +60,9 @@ TEST_CASE("CCSDS Packet ID", "[ccsds-packet-id]") {
 
   SECTION("Invalid Deser") {
     size_t deserLen = 0;
-    REQUIRE(packetId.SerializeIF::deSerialize(buf.data(), deserLen, 1) ==
+    REQUIRE(packetId.deSerialize(buf.data(), deserLen, 1, SerializeIF::Endianness::NETWORK) ==
             SerializeIF::STREAM_TOO_SHORT);
-    REQUIRE(packetId.SerializeIF::deSerialize(buf.data(), deserLen, 0) ==
+    REQUIRE(packetId.deSerialize(buf.data(), deserLen, 0, SerializeIF::Endianness::NETWORK) ==
             SerializeIF::STREAM_TOO_SHORT);
   }
 
@@ -77,8 +77,8 @@ TEST_CASE("CCSDS Packet ID", "[ccsds-packet-id]") {
     buf[0] = 0x1a;
     buf[1] = 0xff;
     size_t deserLen = 0xff;
-    REQUIRE(packetId.SerializeIF::deSerialize(buf.data(), deserLen, buf.size()) ==
-            HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(packetId.deSerialize(buf.data(), deserLen, buf.size(),
+                                 SerializeIF::Endianness::NETWORK) == HasReturnvaluesIF::RETURN_OK);
     CHECK(packetId.apid == 0x2ff);
     CHECK(deserLen == 2);
     CHECK(packetId.packetType == ccsds::PacketType::TC);
@@ -113,7 +113,7 @@ TEST_CASE("CCSDS Packet Seq Ctrl", "[ccsds-packet-seq-ctrl]") {
     buf[0] = 0xbf;
     buf[1] = 0xfe;
     size_t deserLen = 0xff;
-    REQUIRE(psc.SerializeIF::deSerialize(buf.data(), deserLen, buf.size()) ==
+    REQUIRE(psc.deSerialize(buf.data(), deserLen, buf.size(), SerializeIF::Endianness::NETWORK) ==
             HasReturnvaluesIF::RETURN_OK);
     CHECK(psc.seqFlags == ccsds::SequenceFlags::LAST_SEGMENT);
     CHECK(deserLen == 2);
@@ -128,7 +128,9 @@ TEST_CASE("CCSDS Packet Seq Ctrl", "[ccsds-packet-seq-ctrl]") {
 
   SECTION("Invalid Deser") {
     size_t deserLen = 0;
-    REQUIRE(psc.SerializeIF::deSerialize(buf.data(), deserLen, 1) == SerializeIF::STREAM_TOO_SHORT);
-    REQUIRE(psc.SerializeIF::deSerialize(buf.data(), deserLen, 0) == SerializeIF::STREAM_TOO_SHORT);
+    REQUIRE(psc.deSerialize(buf.data(), deserLen, 1, SerializeIF::Endianness::NETWORK) ==
+            SerializeIF::STREAM_TOO_SHORT);
+    REQUIRE(psc.deSerialize(buf.data(), deserLen, 0, SerializeIF::Endianness::NETWORK) ==
+            SerializeIF::STREAM_TOO_SHORT);
   }
 }
diff --git a/unittests/tmtcpacket/testPusTcCreator.cpp b/unittests/tmtcpacket/testPusTcCreator.cpp
index 5bc349a6..5aed24a0 100644
--- a/unittests/tmtcpacket/testPusTcCreator.cpp
+++ b/unittests/tmtcpacket/testPusTcCreator.cpp
@@ -34,7 +34,7 @@ TEST_CASE("PUS TC Creator", "[pus-tc-creator]") {
   }
 
   SECTION("Serialized") {
-    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(creator.serializeBe(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(serLen == 13);
     REQUIRE(buf[0] == 0x18);
     REQUIRE(buf[1] == 0x02);
@@ -64,7 +64,7 @@ TEST_CASE("PUS TC Creator", "[pus-tc-creator]") {
     auto& params = creator.getPusParams();
     params.sourceId = 0x5ff;
     REQUIRE(creator.getSourceId() == 0x5ff);
-    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(creator.serializeBe(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(((buf[9] << 8) | buf[10]) == 0x5ff);
   }
 
@@ -76,7 +76,7 @@ TEST_CASE("PUS TC Creator", "[pus-tc-creator]") {
     REQUIRE(creator.getSerializedSize() == 13);
     creator.updateSpLengthField();
     REQUIRE(creator.getSerializedSize() == 16);
-    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(creator.serializeBe(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(serLen == 16);
     REQUIRE(buf[11] == 1);
     REQUIRE(buf[12] == 2);
@@ -88,7 +88,7 @@ TEST_CASE("PUS TC Creator", "[pus-tc-creator]") {
     auto simpleSer = SimpleSerializable();
     creator.setSerializableUserData(simpleSer);
     REQUIRE(creator.getSerializedSize() == 16);
-    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(creator.serializeBe(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(serLen == 16);
     REQUIRE(buf[11] == 1);
     REQUIRE(buf[12] == 2);
@@ -100,7 +100,7 @@ TEST_CASE("PUS TC Creator", "[pus-tc-creator]") {
     auto simpleSer = SimpleSerializable();
     creator.setSerializableUserData(simpleSer);
     REQUIRE(creator.getSerializedSize() == 16);
-    REQUIRE(creator.serialize(dataPtr, serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(creator.serializeBe(dataPtr, serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(serLen == 16);
     REQUIRE(buf[11] == 1);
     REQUIRE(buf[12] == 2);
@@ -120,13 +120,13 @@ TEST_CASE("PUS TC Creator", "[pus-tc-creator]") {
     for (size_t maxSize = 0; maxSize < reqSize; maxSize++) {
       dataPtr = buf.data();
       serLen = 0;
-      REQUIRE(creator.serialize(&dataPtr, &serLen, maxSize) == SerializeIF::BUFFER_TOO_SHORT);
+      REQUIRE(creator.serializeBe(&dataPtr, &serLen, maxSize) == SerializeIF::BUFFER_TOO_SHORT);
     }
   }
 
   SECTION("Invalid PUS Version") {
     auto& params = creator.getPusParams();
     params.pusVersion = 0;
-    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == PusIF::INVALID_PUS_VERSION);
+    REQUIRE(creator.serializeBe(&dataPtr, &serLen, buf.size()) == PusIF::INVALID_PUS_VERSION);
   }
 }
\ No newline at end of file
diff --git a/unittests/tmtcpacket/testPusTcReader.cpp b/unittests/tmtcpacket/testPusTcReader.cpp
index 3245218a..1c3469f2 100644
--- a/unittests/tmtcpacket/testPusTcReader.cpp
+++ b/unittests/tmtcpacket/testPusTcReader.cpp
@@ -16,7 +16,7 @@ TEST_CASE("PUS TC Reader", "[pus-tc-reader]") {
   PusTcReader reader;
 
   SECTION("State") {
-    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(creator.serializeBe(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(reader.isNull());
     REQUIRE(not reader);
     PusTcReader* readerPtr = nullptr;
@@ -55,14 +55,14 @@ TEST_CASE("PUS TC Reader", "[pus-tc-reader]") {
   }
 
   SECTION("Invalid CRC") {
-    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(creator.serializeBe(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(reader.setReadOnlyData(buf.data(), serLen) == HasReturnvaluesIF::RETURN_OK);
     buf[11] = 0x00;
     REQUIRE(reader.parseDataWithCrcCheck() == PusIF::INVALID_CRC_16);
   }
 
   SECTION("Invalid CRC but no check") {
-    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(creator.serializeBe(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(reader.setReadOnlyData(buf.data(), serLen) == HasReturnvaluesIF::RETURN_OK);
     buf[11] = 0x00;
     REQUIRE(reader.parseDataWithoutCrcCheck() == HasReturnvaluesIF::RETURN_OK);
@@ -72,7 +72,7 @@ TEST_CASE("PUS TC Reader", "[pus-tc-reader]") {
     auto& params = creator.getPusParams();
     std::array<uint8_t, 3> data{1, 2, 3};
     creator.setRawUserData(data.data(), data.size());
-    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(creator.serializeBe(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(reader.setReadOnlyData(buf.data(), serLen) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(reader.parseDataWithCrcCheck() == HasReturnvaluesIF::RETURN_OK);
     const uint8_t* userDataPtr = reader.getUserData();
diff --git a/unittests/tmtcpacket/testPusTmCreator.cpp b/unittests/tmtcpacket/testPusTmCreator.cpp
index f32e060f..4c958911 100644
--- a/unittests/tmtcpacket/testPusTmCreator.cpp
+++ b/unittests/tmtcpacket/testPusTmCreator.cpp
@@ -90,7 +90,7 @@ TEST_CASE("PUS TM Creator", "[pus-tm-creator]") {
     REQUIRE(creator.getApid() == 0x3ff);
     REQUIRE(creator.getDestId() == 0xfff);
     REQUIRE(creator.getMessageTypeCounter() == 0x313);
-    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(creator.serializeBe(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
     // Message Sequence Count
     REQUIRE(((buf[9] << 8) | buf[10]) == 0x313);
     // Destination ID
@@ -108,8 +108,7 @@ TEST_CASE("PUS TM Creator", "[pus-tm-creator]") {
     std::array<uint8_t, 3> data{1, 2, 3};
     creator.setRawUserData(data.data(), data.size());
     REQUIRE(creator.getFullPacketLen() == 25);
-    REQUIRE(creator.SerializeIF::serialize(&dataPtr, &serLen, buf.size()) ==
-            HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(creator.serializeBe(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(buf[20] == 1);
     REQUIRE(buf[21] == 2);
     REQUIRE(buf[22] == 3);
@@ -119,7 +118,8 @@ TEST_CASE("PUS TM Creator", "[pus-tm-creator]") {
     auto simpleSer = SimpleSerializable();
     creator.setSerializableUserData(simpleSer);
     REQUIRE(creator.getFullPacketLen() == 25);
-    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size(), SerializeIF::Endianness::NETWORK) ==
+            HasReturnvaluesIF::RETURN_OK);
     REQUIRE(buf[20] == 1);
     REQUIRE(buf[21] == 2);
     REQUIRE(buf[22] == 3);
@@ -143,7 +143,7 @@ TEST_CASE("PUS TM Creator", "[pus-tm-creator]") {
     for (size_t maxSize = 0; maxSize < reqSize; maxSize++) {
       dataPtr = buf.data();
       serLen = 0;
-      REQUIRE(creator.SerializeIF::serialize(&dataPtr, &serLen, maxSize) ==
+      REQUIRE(creator.serialize(&dataPtr, &serLen, maxSize, SerializeIF::Endianness::NETWORK) ==
               SerializeIF::BUFFER_TOO_SHORT);
     }
   }
@@ -151,7 +151,7 @@ TEST_CASE("PUS TM Creator", "[pus-tm-creator]") {
   SECTION("No CRC Generation") {
     creator.disableCrcCalculation();
     REQUIRE(not creator.crcCalculationEnabled());
-    REQUIRE(creator.serialize(dataPtr, serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(creator.serializeBe(dataPtr, serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(serLen == 22);
     REQUIRE(buf[20] == 0x00);
     REQUIRE(buf[21] == 0x00);
diff --git a/unittests/tmtcpacket/testPusTmReader.cpp b/unittests/tmtcpacket/testPusTmReader.cpp
index 7967dba6..67659442 100644
--- a/unittests/tmtcpacket/testPusTmReader.cpp
+++ b/unittests/tmtcpacket/testPusTmReader.cpp
@@ -62,7 +62,7 @@ TEST_CASE("PUS TM Reader", "[pus-tm-reader]") {
   }
 
   SECTION("Invalid CRC") {
-    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(creator.serializeBe(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
     buf[20] = 0;
     REQUIRE(reader.setReadOnlyData(buf.data(), serLen) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(reader.parseDataWithCrcCheck() == PusIF::INVALID_CRC_16);
@@ -74,7 +74,7 @@ TEST_CASE("PUS TM Reader", "[pus-tm-reader]") {
   }
 
   SECTION("Invalid CRC ignored") {
-    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(creator.serializeBe(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
     buf[20] = 0;
     REQUIRE(reader.setReadOnlyData(buf.data(), serLen) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(reader.parseDataWithoutCrcCheck() == HasReturnvaluesIF::RETURN_OK);
@@ -83,7 +83,7 @@ TEST_CASE("PUS TM Reader", "[pus-tm-reader]") {
   SECTION("Read with source data") {
     std::array<uint8_t, 3> data{1, 2, 3};
     creator.setRawUserData(data.data(), data.size());
-    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(creator.serializeBe(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(reader.setReadOnlyData(buf.data(), serLen) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(reader.parseDataWithCrcCheck() == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(reader.getUserDataLen() == 3);
@@ -94,7 +94,7 @@ TEST_CASE("PUS TM Reader", "[pus-tm-reader]") {
   }
 
   SECTION("Invalid stream lengths") {
-    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(creator.serializeBe(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
     for (size_t i = 0; i < serLen - 1; i++) {
       REQUIRE(reader.setReadOnlyData(buf.data(), i) == SerializeIF::STREAM_TOO_SHORT);
     }
@@ -102,7 +102,7 @@ TEST_CASE("PUS TM Reader", "[pus-tm-reader]") {
 
   SECTION("Reading timestamp fails") {
     timeStamperAndReader.nextDeserFails = true;
-    REQUIRE(creator.serialize(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    REQUIRE(creator.serializeBe(&dataPtr, &serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(reader.setReadOnlyData(buf.data(), serLen) == HasReturnvaluesIF::RETURN_OK);
     REQUIRE(reader.parseDataWithCrcCheck() == HasReturnvaluesIF::RETURN_FAILED);
   }
diff --git a/unittests/tmtcpacket/testZcTmWriter.cpp b/unittests/tmtcpacket/testZcTmWriter.cpp
index fc013590..da596250 100644
--- a/unittests/tmtcpacket/testZcTmWriter.cpp
+++ b/unittests/tmtcpacket/testZcTmWriter.cpp
@@ -18,7 +18,7 @@ TEST_CASE("TM ZC Helper", "[tm-zc-helper]") {
   size_t serLen = 0;
 
   SECTION("No Crash For Uninitialized Object") {
-    REQUIRE(creator.serialize(dataPtr, serLen, buf.size()) == result::OK);
+    REQUIRE(creator.serializeBe(dataPtr, serLen, buf.size()) == result::OK);
     PusTmZeroCopyWriter writer(timeStamper, dataPtr, serLen);
     REQUIRE(writer.getSequenceCount() == 22);
     writer.setSequenceCount(23);
@@ -28,7 +28,7 @@ TEST_CASE("TM ZC Helper", "[tm-zc-helper]") {
   }
 
   SECTION("Basic") {
-    REQUIRE(creator.serialize(dataPtr, serLen, buf.size()) == result::OK);
+    REQUIRE(creator.serializeBe(dataPtr, serLen, buf.size()) == result::OK);
     PusTmZeroCopyWriter writer(timeStamper, dataPtr, serLen);
     REQUIRE(writer.parseDataWithoutCrcCheck() == result::OK);
     REQUIRE(writer.getSequenceCount() == 22);
diff --git a/unittests/util/CMakeLists.txt b/unittests/util/CMakeLists.txt
new file mode 100644
index 00000000..d4caa4d5
--- /dev/null
+++ b/unittests/util/CMakeLists.txt
@@ -0,0 +1,3 @@
+target_sources(${FSFW_TEST_TGT} PRIVATE
+  testUnsignedByteField.cpp
+)
diff --git a/unittests/util/testUnsignedByteField.cpp b/unittests/util/testUnsignedByteField.cpp
new file mode 100644
index 00000000..83ffd3c6
--- /dev/null
+++ b/unittests/util/testUnsignedByteField.cpp
@@ -0,0 +1,76 @@
+
+#include <array>
+#include <catch2/catch_test_macros.hpp>
+
+#include "fsfw/util/UnsignedByteField.h"
+
+TEST_CASE("Unsigned Byte Field", "[unsigned-byte-field]") {
+  auto testByteField = UnsignedByteField<uint32_t>(10);
+  auto u32ByteField = U32ByteField(10);
+  auto u16ByteField = U16ByteField(5);
+  auto u8ByteField = U8ByteField(2);
+  std::array<uint8_t, 16> buf{};
+  size_t serLen = 0;
+  SECTION("State") {
+    CHECK(testByteField.getValue() == 10);
+    CHECK(testByteField.getSerializedSize() == 4);
+    CHECK(u32ByteField.getValue() == 10);
+    CHECK(u32ByteField.getSerializedSize() == 4);
+    CHECK(u16ByteField.getValue() == 5);
+    CHECK(u8ByteField.getValue() == 2);
+    CHECK(u8ByteField.getSerializedSize() == 1);
+  }
+
+  SECTION("Setter") {
+    u32ByteField.setValue(20);
+    REQUIRE(u32ByteField.getValue() == 20);
+  }
+
+  SECTION("Serialize U32") {
+    CHECK(testByteField.serializeBe(buf.data(), serLen, buf.size()) ==
+          HasReturnvaluesIF::RETURN_OK);
+    CHECK(serLen == 4);
+    CHECK(buf[0] == 0);
+    CHECK(buf[3] == 10);
+  }
+
+  SECTION("Serialize U32 Concrete") {
+    CHECK(u32ByteField.serializeBe(buf.data(), serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    CHECK(serLen == 4);
+    CHECK(buf[0] == 0);
+    CHECK(buf[3] == 10);
+  }
+
+  SECTION("Serialize U16 Concrete") {
+    CHECK(u16ByteField.serializeBe(buf.data(), serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    CHECK(serLen == 2);
+    CHECK(buf[0] == 0);
+    CHECK(buf[1] == 5);
+  }
+
+  SECTION("Serialize U8 Concrete") {
+    CHECK(u8ByteField.serializeBe(buf.data(), serLen, buf.size()) == HasReturnvaluesIF::RETURN_OK);
+    CHECK(serLen == 1);
+    CHECK(buf[0] == 2);
+  }
+
+  SECTION("Deserialize") {
+    buf[0] = 0x50;
+    buf[1] = 0x40;
+    buf[2] = 0x30;
+    buf[3] = 0x20;
+    size_t deserLen = 0;
+    CHECK(testByteField.deSerializeBe(buf.data(), deserLen, buf.size()) ==
+          HasReturnvaluesIF::RETURN_OK);
+    CHECK(testByteField.getValue() == 0x50403020);
+  }
+
+  SECTION("Deserialize U16") {
+    buf[0] = 0x50;
+    buf[1] = 0x40;
+    size_t deserLen = 0;
+    CHECK(u16ByteField.deSerializeBe(buf.data(), deserLen, buf.size()) ==
+          HasReturnvaluesIF::RETURN_OK);
+    CHECK(u16ByteField.getValue() == 0x5040);
+  }
+}
\ No newline at end of file