diff --git a/src/nodes/_diffusers_scheduler_loader.py b/src/nodes/_diffusers_scheduler_loader.py
index 2746c7d..ff74972 100644
--- a/src/nodes/_diffusers_scheduler_loader.py
+++ b/src/nodes/_diffusers_scheduler_loader.py
@@ -3,7 +3,7 @@ from dependency_injector.wiring import Provide, inject
 from ..di import Container
 from ..usecase import SchedulerUsecase
 from .dto import ComfyUIPipelineDTO, ComfyUISchedulerDTO
-from .type import ComfyUISchedulerType
+from .map import SchedulerMap
 
 
 class DiffusersSchedulerLoader:
@@ -15,7 +15,7 @@ class DiffusersSchedulerLoader:
         return {
             "required": {
                 "pipeline": (ComfyUIPipelineDTO.COMFY_TYPE,),
-                "scheduler_name": (list(ComfyUISchedulerType.SCHEDULERS),),
+                "scheduler_name": (SchedulerMap.SCHEDULERS,),
             }
         }
 
@@ -31,7 +31,7 @@ class DiffusersSchedulerLoader:
         usecase: SchedulerUsecase = Provide[Container.scheduler_usecase],
     ) -> tuple[ComfyUISchedulerDTO]:
         domain = ComfyUIPipelineDTO.to_domain(pipeline)
-        scheduler_type = ComfyUISchedulerType.to_domain(scheduler_name)
+        scheduler_type = SchedulerMap.to_domain(scheduler_name)
         scheduler_domain = usecase.execute(domain, scheduler_type)
         scheduler_dto = ComfyUISchedulerDTO.from_domain(scheduler_domain)
         return (scheduler_dto,)
diff --git a/src/nodes/map/__init__.py b/src/nodes/map/__init__.py
new file mode 100644
index 0000000..14a8cf1
--- /dev/null
+++ b/src/nodes/map/__init__.py
@@ -0,0 +1,5 @@
+from ._scheduler_map import SchedulerMap
+
+__all__ = [
+    "SchedulerMap",
+]
diff --git a/src/nodes/map/_scheduler_map.py b/src/nodes/map/_scheduler_map.py
new file mode 100644
index 0000000..3c0a38a
--- /dev/null
+++ b/src/nodes/map/_scheduler_map.py
@@ -0,0 +1,76 @@
+from typing import Final
+
+from ...domain.model import Scheduler
+
+
+class SchedulerMap:
+    """Maps between domain Scheduler.Type enum and ComfyUI string representation.
+
+    This map provides bidirectional conversion between the domain layer's
+    type-safe enum and ComfyUI's string-based interface requirements.
+    """
+
+    SCHEDULERS: Final[list[str]] = [
+        "DDIM",
+        "DDPM",
+        "DEISMultistep",
+        "DPMSolverMultistep",
+        "DPMSolverSinglestep",
+        "EulerAncestralDiscrete",
+        "EulerDiscrete",
+        "HeunDiscrete",
+        "KDPM2AncestralDiscrete",
+        "KDPM2Discrete",
+        "UniPCMultistep",
+    ]
+
+    _DOMAIN_TO_STRING: dict[Scheduler.Type, str] = {
+        Scheduler.Type.DDIM: "DDIM",
+        Scheduler.Type.DDPM: "DDPM",
+        Scheduler.Type.DEISMultistep: "DEISMultistep",
+        Scheduler.Type.DPMSolverMultistep: "DPMSolverMultistep",
+        Scheduler.Type.DPMSolverSinglestep: "DPMSolverSinglestep",
+        Scheduler.Type.EulerAncestralDiscrete: "EulerAncestralDiscrete",
+        Scheduler.Type.EulerDiscrete: "EulerDiscrete",
+        Scheduler.Type.HeunDiscrete: "HeunDiscrete",
+        Scheduler.Type.KDPM2AncestralDiscrete: "KDPM2AncestralDiscrete",
+        Scheduler.Type.KDPM2Discrete: "KDPM2Discrete",
+        Scheduler.Type.UniPCMultistep: "UniPCMultistep",
+    }
+
+    _STRING_TO_DOMAIN: dict[str, Scheduler.Type] = {v: k for k, v in _DOMAIN_TO_STRING.items()}
+
+    @classmethod
+    def from_domain(cls, scheduler_type: Scheduler.Type) -> str:
+        """Convert domain Scheduler.Type enum to ComfyUI string representation.
+
+        Args:
+            scheduler_type: Scheduler.Type enum value from domain layer
+
+        Returns:
+            String representation for ComfyUI interface
+
+        Raises:
+            KeyError: If the scheduler_type is not in the mapping
+        """
+        return cls._DOMAIN_TO_STRING[scheduler_type]
+
+    @classmethod
+    def to_domain(cls, scheduler_name: str) -> Scheduler.Type:
+        """Convert ComfyUI string to domain Scheduler.Type enum.
+
+        Args:
+            scheduler_name: String representation from ComfyUI interface
+
+        Returns:
+            Corresponding Scheduler.Type enum value from domain layer
+
+        Raises:
+            ValueError: If the scheduler_name is not recognized
+        """
+        if scheduler_name not in cls._STRING_TO_DOMAIN:
+            raise ValueError(
+                f"Unknown scheduler type: '{scheduler_name}'. "
+                f"Available types: {', '.join(cls.SCHEDULERS)}"
+            )
+        return cls._STRING_TO_DOMAIN[scheduler_name]
diff --git a/src/nodes/type/__init__.py b/src/nodes/type/__init__.py
deleted file mode 100644
index 1f890b0..0000000
--- a/src/nodes/type/__init__.py
+++ /dev/null
@@ -1,5 +0,0 @@
-from ._scheduler_type import ComfyUISchedulerType
-
-__all__ = [
-    "ComfyUISchedulerType",
-]
diff --git a/src/nodes/type/_scheduler_type.py b/src/nodes/type/_scheduler_type.py
deleted file mode 100644
index 3ba1dbc..0000000
--- a/src/nodes/type/_scheduler_type.py
+++ /dev/null
@@ -1,75 +0,0 @@
-from ...domain.model import Scheduler
-
-
-class ComfyUISchedulerType:
-    SCHEDULERS: list[str] = [
-        "DDIM",
-        "DDPM",
-        "DEISMultistep",
-        "DPMSolverMultistep",
-        "DPMSolverSinglestep",
-        "EulerAncestralDiscrete",
-        "EulerDiscrete",
-        "HeunDiscrete",
-        "KDPM2AncestralDiscrete",
-        "KDPM2Discrete",
-        "UniPCMultistep",
-    ]
-
-    _DOMAIN_TO_STRING_MAP: dict[Scheduler.Type, str] = {
-        Scheduler.Type.DDIM: "DDIM",
-        Scheduler.Type.DDPM: "DDPM",
-        Scheduler.Type.DEISMultistep: "DEISMultistep",
-        Scheduler.Type.DPMSolverMultistep: "DPMSolverMultistep",
-        Scheduler.Type.DPMSolverSinglestep: "DPMSolverSinglestep",
-        Scheduler.Type.EulerAncestralDiscrete: "EulerAncestralDiscrete",
-        Scheduler.Type.EulerDiscrete: "EulerDiscrete",
-        Scheduler.Type.HeunDiscrete: "HeunDiscrete",
-        Scheduler.Type.KDPM2AncestralDiscrete: "KDPM2AncestralDiscrete",
-        Scheduler.Type.KDPM2Discrete: "KDPM2Discrete",
-        Scheduler.Type.UniPCMultistep: "UniPCMultistep",
-    }
-
-    _STRING_TO_DOMAIN_MAP: dict[str, Scheduler.Type] = {
-        "DDIM": Scheduler.Type.DDIM,
-        "DDPM": Scheduler.Type.DDPM,
-        "DEISMultistep": Scheduler.Type.DEISMultistep,
-        "DPMSolverMultistep": Scheduler.Type.DPMSolverMultistep,
-        "DPMSolverSinglestep": Scheduler.Type.DPMSolverSinglestep,
-        "EulerAncestralDiscrete": Scheduler.Type.EulerAncestralDiscrete,
-        "EulerDiscrete": Scheduler.Type.EulerDiscrete,
-        "HeunDiscrete": Scheduler.Type.HeunDiscrete,
-        "KDPM2AncestralDiscrete": Scheduler.Type.KDPM2AncestralDiscrete,
-        "KDPM2Discrete": Scheduler.Type.KDPM2Discrete,
-        "UniPCMultistep": Scheduler.Type.UniPCMultistep,
-    }
-
-    @classmethod
-    def from_domain(cls, scheduler: Scheduler.Type) -> str:
-        """Convert Scheduler.Type enum to string representation.
-
-        Args:
-            scheduler: Scheduler.Type enum value
-
-        Returns:
-            String representation of the scheduler type
-        """
-        return cls._DOMAIN_TO_STRING_MAP[scheduler]
-
-    @classmethod
-    def to_domain(cls, scheduler_type: str) -> Scheduler.Type:
-        """Convert string type to Scheduler.Type enum.
-
-        Args:
-            scheduler_type: String representation of scheduler type
-
-        Returns:
-            Corresponding Scheduler.Type enum value
-
-        Raises:
-            ValueError: If the scheduler_type is not recognized
-        """
-        if scheduler_type not in cls._STRING_TO_DOMAIN_MAP:
-            msg = f"Unknown scheduler type: {scheduler_type}"
-            raise ValueError(msg)
-        return cls._STRING_TO_DOMAIN_MAP[scheduler_type]