diff --git a/backend/entities/__init__.py b/backend/entities/__init__.py
index dc998ad..0b82067 100644
--- a/backend/entities/__init__.py
+++ b/backend/entities/__init__.py
@@ -6,4 +6,5 @@ from .resource_entity import ResourceEntity
 from .resource_tag_entity import ResourceTagEntity
 from .service_entity import ServiceEntity
 from .service_tag_entity import ServiceTagEntity
-
+from .program_enum import ProgramEnum
+from .user_enum import RoleEnum
diff --git a/backend/entities/program_enum.py b/backend/entities/program_enum.py
new file mode 100644
index 0000000..3a207bd
--- /dev/null
+++ b/backend/entities/program_enum.py
@@ -0,0 +1,10 @@
+from sqlalchemy import Enum
+
+
+class ProgramEnum(Enum):
+    ECONOMIC = "economic"
+    DOMESTIC = "domestic"
+    COMMUNITY = "community"
+
+    def __init__(self):
+        super().__init__(name="program_enum")
diff --git a/backend/entities/resource_entity.py b/backend/entities/resource_entity.py
index 4adea78..b38e625 100644
--- a/backend/entities/resource_entity.py
+++ b/backend/entities/resource_entity.py
@@ -1,38 +1,68 @@
 """ Defines the table for storing resources """
+
 # Import our mapped SQL types from SQLAlchemy
 from sqlalchemy import Integer, String, DateTime
+
 # Import mapping capabilities from the SQLAlchemy ORM
 from sqlalchemy.orm import Mapped, mapped_column, relationship
+
 # Import the EntityBase that we are extending
 from .entity_base import EntityBase
+
 # Import datetime for created_at type
 from datetime import datetime
-# Import enums for Program
-import enum
-from sqlalchemy import Enum
 
-class ProgramEnum(enum.Enum):
-    """ Determine program for Resource """
-    DOMESTIC = 'DOMESTIC'
-    ECONOMIC = 'ECONOMIC'
-    COMMUNITY = 'COMMUNITY'
+# Import self for to model
+from typing import Self
+from backend.entities.program_enum import ProgramEnum
 
-class ResourceEntity(EntityBase): 
 
-    #set table name 
+class ResourceEntity(EntityBase):
+
+    # set table name
     __tablename__ = "resource"
 
-    #set fields
+    # set fields
     id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
     created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.now)
     name: Mapped[str] = mapped_column(String(32), nullable=False)
     summary: Mapped[str] = mapped_column(String(100), nullable=False)
     link: Mapped[str] = mapped_column(String, nullable=False)
-    program: Mapped[ProgramEnum] = mapped_column(Enum(ProgramEnum), nullable=False)
+    program: Mapped[ProgramEnum] = mapped_column(ProgramEnum, nullable=False)
 
-    #relationships
-    resourceTags: Mapped[list["ResourceTagEntity"]] = relationship(back_populates="resource", cascade="all,delete")
+    # relationships
+    resourceTags: Mapped[list["ResourceTagEntity"]] = relationship(
+        back_populates="resource", cascade="all,delete"
+    )
 
+    #
+    # @classmethod
+    # def from_model(cls, model: user_model) -> Self:
+    #     """
+    #     Create a UserEntity from a User model.
 
+    #     Args:
+    #         model (User): The model to create the entity from.
 
+    #     Returns:
+    #         Self: The entity (not yet persisted).
+    #     """
 
+    #     return cls (
+    #         id = model.id,
+    #         created_at = model.created_at,
+    #         name = model.name,
+    #         summary = model.summary,
+    #         link = model.link,
+    #         program = model.program,
+    #     )
+
+    # def to_model(self) -> user_model:
+    #     return user_model (
+    #         id = self.id,
+    #         created_at = self.created_at,
+    #         name = self.name,
+    #         summary = self.summary,
+    #         link = self.link,
+    #         program = self.program,
+    #     )
diff --git a/backend/entities/resource_tag_entity.py b/backend/entities/resource_tag_entity.py
index cdabc7e..eb0d7b9 100644
--- a/backend/entities/resource_tag_entity.py
+++ b/backend/entities/resource_tag_entity.py
@@ -1,7 +1,7 @@
 """ Defines the table for resource tags """
 
 # Import our mapped SQL types from SQLAlchemy
-from sqlalchemy import ForeignKey, Integer, String, DateTime, ARRAY
+from sqlalchemy import ForeignKey, Integer, String, DateTime
 
 # Import mapping capabilities from the SQLAlchemy ORM
 from sqlalchemy.orm import Mapped, mapped_column, relationship
@@ -12,9 +12,8 @@ from .entity_base import EntityBase
 # Import datetime for created_at type
 from datetime import datetime
 
-# Import enums for Role and Program
-import enum
-from sqlalchemy import Enum
+# Import self for to model
+from typing import Self
 
 
 class ResourceTagEntity(EntityBase):
@@ -30,3 +29,18 @@ class ResourceTagEntity(EntityBase):
     # relationships
     resource: Mapped["ResourceEntity"] = relationship(back_populates="resourceTags")
     tag: Mapped["TagEntity"] = relationship(back_populates="resourceTags")
+
+    # @classmethod
+    # def from_model (cls, model: resource_tag_model) -> Self:
+    #     return cls (
+    #         id = model.id,
+    #         resourceId = model.resourceId,
+    #         tagId = model.tagId,
+    #     )
+
+    # def to_model (self) -> resource_tag_model:
+    #     return user_model(
+    #         id = self.id,
+    #         resourceId = self.resourceId,
+    #         tagId = self.tagId,
+    #     )
diff --git a/backend/entities/service_entity.py b/backend/entities/service_entity.py
index c52f857..e927be7 100644
--- a/backend/entities/service_entity.py
+++ b/backend/entities/service_entity.py
@@ -19,6 +19,7 @@ from sqlalchemy import Enum
 
 class ProgramEnum(enum.Enum):
     """Determine program for Service"""
+
     DOMESTIC = "DOMESTIC"
     ECONOMIC = "ECONOMIC"
     COMMUNITY = "COMMUNITY"
@@ -26,10 +27,10 @@ class ProgramEnum(enum.Enum):
 
 class ServiceEntity(EntityBase):
 
-    #set table name
+    # set table name
     __tablename__ = "service"
 
-    #set fields
+    # set fields
     id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
     created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.now)
     name: Mapped[str] = mapped_column(String(32), nullable=False)
@@ -37,5 +38,7 @@ class ServiceEntity(EntityBase):
     requirements: Mapped[list[str]] = mapped_column(ARRAY(String))
     program: Mapped[ProgramEnum] = mapped_column(Enum(ProgramEnum), nullable=False)
 
-    #relationships
-    serviceTags: Mapped[list["ServiceTagEntity"]] = relationship(back_populates="service", cascade="all,delete")
+    # relationships
+    serviceTags: Mapped[list["ServiceTagEntity"]] = relationship(
+        back_populates="service", cascade="all,delete"
+    )
diff --git a/backend/entities/user_entity.py b/backend/entities/user_entity.py
index 5f326b6..8f82e4d 100644
--- a/backend/entities/user_entity.py
+++ b/backend/entities/user_entity.py
@@ -3,37 +3,22 @@
 # Import our mapped SQL types from SQLAlchemy
 from sqlalchemy import Integer, String, DateTime, ARRAY
 
+
 # Import mapping capabilities from the SQLAlchemy ORM
 from sqlalchemy.orm import Mapped, mapped_column
 
+
 # Import the EntityBase that we are extending
 from .entity_base import EntityBase
 
+
 # Import datetime for created_at type
 from datetime import datetime
 
+
 # Import enums for Role and Program
-import enum
-from sqlalchemy import Enum
-
-# Import self
-from typing import Self
-
-
-class RoleEnum(enum.Enum):
-    """Determine role for User"""
-
-    ADMIN = "ADMIN"
-    EMPLOYEE = "EMPLOYEE"
-    VOLUNTEER = "VOLUNTEER"
-
-
-class ProgramEnum(enum.Enum):
-    """Determine program for User"""
-
-    DOMESTIC = "DOMESTIC"
-    ECONOMIC = "ECONOMIC"
-    COMMUNITY = "COMMUNITY"
+from backend.entities.program_enum import ProgramEnum
+from .user_enum import RoleEnum
 
 
 class UserEntity(EntityBase):
@@ -48,10 +33,17 @@ class UserEntity(EntityBase):
     username: Mapped[str] = mapped_column(
         String(32), nullable=False, default="", unique=True
     )
-    role: Mapped[RoleEnum] = mapped_column(Enum(RoleEnum), nullable=False)
+    role: Mapped[RoleEnum] = mapped_column(RoleEnum, nullable=False)
+    username: Mapped[str] = mapped_column(
+        String(32), nullable=False, default="", unique=True
+    )
+    role: Mapped[RoleEnum] = mapped_column(RoleEnum, nullable=False)
     email: Mapped[str] = mapped_column(String(50), nullable=False, unique=True)
     program: Mapped[list[ProgramEnum]] = mapped_column(
-        ARRAY(Enum(ProgramEnum)), nullable=False
+        ARRAY(ProgramEnum), nullable=False
+    )
+    program: Mapped[list[ProgramEnum]] = mapped_column(
+        ARRAY(ProgramEnum), nullable=False
     )
     experience: Mapped[int] = mapped_column(Integer, nullable=False)
     group: Mapped[str] = mapped_column(String(50))
diff --git a/backend/entities/user_enum.py b/backend/entities/user_enum.py
new file mode 100644
index 0000000..99594ec
--- /dev/null
+++ b/backend/entities/user_enum.py
@@ -0,0 +1,12 @@
+from sqlalchemy import Enum
+
+
+class RoleEnum(Enum):
+    """Determine role for User"""
+
+    ADMIN = "ADMIN"
+    EMPLOYEE = "EMPLOYEE"
+    VOLUNTEER = "VOLUNTEER"
+
+    def __init__(self):
+        super().__init__(name="role_enum")