diff --git a/xarray/backends/common.py b/xarray/backends/common.py
index 1ac988c6b4f..6abe89e219f 100644
--- a/xarray/backends/common.py
+++ b/xarray/backends/common.py
@@ -4,6 +4,7 @@
 import os
 import time
 import traceback
+from abc import ABC, abstractmethod
 from collections.abc import Iterable
 from glob import glob
 from typing import TYPE_CHECKING, Any, ClassVar
@@ -170,17 +171,20 @@ def get_duck_array(self, dtype: np.typing.DTypeLike = None):
         return self[key]  # type: ignore [index]
 
 
-class AbstractDataStore:
+class AbstractDataStore(ABC):
     __slots__ = ()
 
-    def get_dimensions(self):  # pragma: no cover
-        raise NotImplementedError()
+    @abstractmethod
+    def get_dimensions(self):
+        ...
 
-    def get_attrs(self):  # pragma: no cover
-        raise NotImplementedError()
+    @abstractmethod
+    def get_attrs(self):
+        ...
 
-    def get_variables(self):  # pragma: no cover
-        raise NotImplementedError()
+    @abstractmethod
+    def get_variables(self):
+        ...
 
     def get_encoding(self):
         return {}
@@ -300,14 +304,13 @@ def encode_attribute(self, a):
         """encode one attribute"""
         return a
 
-    def set_dimension(self, dim, length):  # pragma: no cover
-        raise NotImplementedError()
+    @abstractmethod
+    def set_dimension(self, dim, length):
+        ...
 
-    def set_attribute(self, k, v):  # pragma: no cover
-        raise NotImplementedError()
-
-    def set_variable(self, k, v):  # pragma: no cover
-        raise NotImplementedError()
+    @abstractmethod
+    def set_attribute(self, k, v):
+        ...
 
     def store_dataset(self, dataset):
         """
@@ -444,7 +447,7 @@ def encode(self, variables, attributes):
         return variables, attributes
 
 
-class BackendEntrypoint:
+class BackendEntrypoint(ABC):
     """
     ``BackendEntrypoint`` is a class container and it is the main interface
     for the backend plugins, see :ref:`RST backend_entrypoint`.
@@ -485,6 +488,7 @@ def __repr__(self) -> str:
             txt += f"\n  Learn more at {self.url}"
         return txt
 
+    @abstractmethod
     def open_dataset(
         self,
         filename_or_obj: str | os.PathLike[Any] | BufferedIOBase | AbstractDataStore,
@@ -495,8 +499,7 @@ def open_dataset(
         """
         Backend open_dataset method used by Xarray in :py:func:`~xarray.open_dataset`.
         """
-
-        raise NotImplementedError
+        ...
 
     def guess_can_open(
         self,