diff --git a/learnware/market/__init__.py b/learnware/market/__init__.py
index 8347527..10654c7 100644
--- a/learnware/market/__init__.py
+++ b/learnware/market/__init__.py
@@ -1,4 +1,5 @@
-from .base import BaseUserInfo, BaseMarket
 from .anchor import AnchoredUserInfo, AnchoredMarket
+from .base import BaseUserInfo, BaseMarket
+from .evolve_anchor import EvolvedAnchoredMarket
 from .evolve import EvolvedMarket
 from .easy import EasyMarket
diff --git a/learnware/market/evolve.py b/learnware/market/evolve.py
index fb7fcbc..7415de4 100644
--- a/learnware/market/evolve.py
+++ b/learnware/market/evolve.py
@@ -1,23 +1,23 @@
 from typing import Tuple, Any, List, Union, Dict
 
+from .base import BaseMarket
 from ..learnware import Learnware
 from ..specification import BaseStatSpecification
-from .anchor import AnchoredUserInfo, AnchoredMarket
 
 
-class EvolvedMarket(AnchoredMarket):
+class EvolvedMarket(BaseMarket):
     """Organize learnwares and enable them to continuously evolve
 
     Parameters
     ----------
-    AnchoredMarket : _type_
-        Market version with anchors
+    BaseMarket : _type_
+        Basic market version
     """
 
     def __init__(self):
         super(EvolvedMarket, self).__init__()
 
-    def generate_stat_specification(self, learnware: Learnware) -> BaseStatSpecification:
+    def generate_new_stat_specification(self, learnware: Learnware) -> BaseStatSpecification:
         """Generate new statistical specification for learnwares
 
         Parameters
@@ -31,16 +31,6 @@ class EvolvedMarket(AnchoredMarket):
         """
         pass
 
-    def evolve_anchor_learnware_list(self, anchor_id_list: List[str]):
-        """Enable anchor learnwares to evolve, e.g., new stat_spec
-
-        Parameters
-        ----------
-        anchor_id_list : List[str]
-            Id list for Anchor learnwares
-        """
-        pass
-
     def evolve_learnware_list(self, id_list: List[str]):
         """Enable learnwares to evolve, e.g., new stat_spec
 
@@ -50,27 +40,3 @@ class EvolvedMarket(AnchoredMarket):
             Id list for learnwares
         """
         pass
-
-    def evolve_anchor_learnware_by_user(self, user_info: AnchoredUserInfo):
-        """Enable anchor leanrwares to evolve based on user statistical information
-
-        Parameters
-        ----------
-        user_info : AnchoredUserInfo
-            User information with statistics calculated on anchors
-        """
-        pass
-
-    def evolve_learnware_by_user(self, learnware_id: str, user_info: AnchoredUserInfo):
-        """
-            Enable leanrwares to evolve based on user info
-            - e.g., When we estimate the performance of a specific learnware on user tasks, we can further refine the update of the learnware specification
-
-        Parameters
-        ----------
-        learnware_id : str
-            Leanrware id
-        user_info : AnchoredUserInfo
-            User information with statistics calculated on anchors
-        """
-        pass
diff --git a/learnware/market/evolve_anchor.py b/learnware/market/evolve_anchor.py
new file mode 100644
index 0000000..adea95c
--- /dev/null
+++ b/learnware/market/evolve_anchor.py
@@ -0,0 +1,53 @@
+from typing import Tuple, Any, List, Union, Dict
+
+from .anchor import AnchoredUserInfo, AnchoredMarket
+from .evolve import EvolvedMarket
+
+
+class EvolvedAnchoredMarket(AnchoredMarket, EvolvedMarket):
+    """Organize learnwares with anchors and enable them to continuously evolve
+
+    Parameters
+    ----------
+    AnchoredMarket : _type_
+        Market version with anchors
+    EvolvedMarket : _type_
+        Market version with evolved learnwares
+    """
+
+    def __init__(self):
+        super(EvolvedAnchoredMarket, self).__init__()
+
+    def evolve_anchor_learnware_list(self, anchor_id_list: List[str]):
+        """Enable anchor learnwares to evolve, e.g., new stat_spec
+
+        Parameters
+        ----------
+        anchor_id_list : List[str]
+            Id list for Anchor learnwares
+        """
+        pass
+
+    def evolve_anchor_learnware_by_user(self, user_info: AnchoredUserInfo):
+        """Enable anchor leanrwares to evolve based on user statistical information
+
+        Parameters
+        ----------
+        user_info : AnchoredUserInfo
+            User information with statistics calculated on anchors
+        """
+        pass
+
+    def evolve_learnware_by_user(self, learnware_id: str, user_info: AnchoredUserInfo):
+        """
+            Enable leanrwares to evolve based on user info
+            - e.g., When we estimate the performance of a specific learnware on user tasks, we can further refine the update of the learnware specification
+
+        Parameters
+        ----------
+        learnware_id : str
+            Leanrware id
+        user_info : AnchoredUserInfo
+            User information with statistics calculated on anchors
+        """
+        pass