diff --git a/compute_kernel_writer/src/KernelArgument.cpp b/compute_kernel_writer/src/KernelArgument.cpp
new file mode 100644
index 0000000..a31ca17
--- /dev/null
+++ b/compute_kernel_writer/src/KernelArgument.cpp
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2023 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "ckw/KernelArgument.h"
+#include "ckw/Error.h"
+
+namespace ckw
+{
+
+KernelArgument::KernelArgument(int32_t tensor_id, TensorStorageType storage_type)
+    : _type(Type::TensorStorage), _id(tensor_id)
+{
+    _sub_id.tensor_storage_type = storage_type;
+}
+
+KernelArgument::KernelArgument(int32_t tensor_id, TensorComponentType component_type)
+    : _type(Type::TensorComponent), _id(tensor_id)
+{
+    _sub_id.tensor_component_type = component_type;
+}
+
+KernelArgument::Type KernelArgument::type() const
+{
+    return _type;
+}
+
+int32_t KernelArgument::id() const
+{
+    return _id;
+}
+
+TensorStorageType KernelArgument::tensor_storage_type() const
+{
+    CKW_ASSERT(_type == Type::TensorStorage);
+
+    return _sub_id.tensor_storage_type;
+}
+
+TensorComponentType KernelArgument::tensor_component_type() const
+{
+    CKW_ASSERT(_type == Type::TensorComponent);
+
+    return _sub_id.tensor_component_type;
+}
+
+} // namespace ckw