diff --git a/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/Administrator.java b/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/Administrator.java
similarity index 63%
rename from poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/Administrator.java
rename to poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/Administrator.java
index d82129c..e28bb3d 100644
--- a/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/Administrator.java
+++ b/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/Administrator.java
@@ -1,7 +1,8 @@
-package com.bpgroup.poc.admin.domain.admin;
+package com.bpgroup.poc.admin.domain.admin.entity;
 
 import com.bpgroup.poc.admin.domain.BaseEntity;
 import jakarta.persistence.*;
+import lombok.Builder;
 import lombok.Getter;
 
 @Getter
@@ -28,4 +29,14 @@ public class Administrator extends BaseEntity {
     @OneToOne(mappedBy = "administrator", fetch = FetchType.LAZY)
     private AdministratorRole administratorRole;
 
+    @Builder
+    public static Administrator of(String loginId, String password, String email, String name) {
+        Administrator administrator = new Administrator();
+        administrator.loginId = loginId;
+        administrator.password = password;
+        administrator.email = email;
+        administrator.name = name;
+        return administrator;
+    }
+
 }
diff --git a/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/AdministratorRepository.java b/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/AdministratorRepository.java
similarity index 82%
rename from poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/AdministratorRepository.java
rename to poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/AdministratorRepository.java
index ec88f1e..b81a4ad 100644
--- a/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/AdministratorRepository.java
+++ b/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/AdministratorRepository.java
@@ -1,4 +1,4 @@
-package com.bpgroup.poc.admin.domain.admin;
+package com.bpgroup.poc.admin.domain.admin.entity;
 
 import org.springframework.data.jpa.repository.JpaRepository;
 
diff --git a/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/AdministratorRole.java b/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/AdministratorRole.java
similarity index 93%
rename from poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/AdministratorRole.java
rename to poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/AdministratorRole.java
index bb26a09..29540a5 100644
--- a/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/AdministratorRole.java
+++ b/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/AdministratorRole.java
@@ -1,4 +1,4 @@
-package com.bpgroup.poc.admin.domain.admin;
+package com.bpgroup.poc.admin.domain.admin.entity;
 
 import com.bpgroup.poc.admin.domain.BaseEntity;
 import jakarta.persistence.*;
diff --git a/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/Menu.java b/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/Menu.java
similarity index 93%
rename from poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/Menu.java
rename to poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/Menu.java
index 054d477..9ccb75c 100644
--- a/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/Menu.java
+++ b/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/Menu.java
@@ -1,4 +1,4 @@
-package com.bpgroup.poc.admin.domain.admin;
+package com.bpgroup.poc.admin.domain.admin.entity;
 
 import com.bpgroup.poc.admin.domain.BaseEntity;
 import jakarta.persistence.*;
diff --git a/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/MenuGroup.java b/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/MenuGroup.java
similarity index 91%
rename from poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/MenuGroup.java
rename to poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/MenuGroup.java
index cfba4f3..7241ae2 100644
--- a/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/MenuGroup.java
+++ b/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/MenuGroup.java
@@ -1,4 +1,4 @@
-package com.bpgroup.poc.admin.domain.admin;
+package com.bpgroup.poc.admin.domain.admin.entity;
 
 import com.bpgroup.poc.admin.domain.BaseEntity;
 import jakarta.persistence.*;
diff --git a/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/MenuRepository.java b/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/MenuRepository.java
similarity index 72%
rename from poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/MenuRepository.java
rename to poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/MenuRepository.java
index 9ce7974..c3d12dd 100644
--- a/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/MenuRepository.java
+++ b/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/MenuRepository.java
@@ -1,4 +1,4 @@
-package com.bpgroup.poc.admin.domain.admin;
+package com.bpgroup.poc.admin.domain.admin.entity;
 
 import org.springframework.data.jpa.repository.JpaRepository;
 
diff --git a/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/Role.java b/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/Role.java
similarity index 91%
rename from poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/Role.java
rename to poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/Role.java
index 3d9e3df..b6f4254 100644
--- a/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/Role.java
+++ b/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/Role.java
@@ -1,4 +1,4 @@
-package com.bpgroup.poc.admin.domain.admin;
+package com.bpgroup.poc.admin.domain.admin.entity;
 
 import com.bpgroup.poc.admin.domain.BaseEntity;
 import jakarta.persistence.*;
diff --git a/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/RoleMenu.java b/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/RoleMenu.java
similarity index 92%
rename from poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/RoleMenu.java
rename to poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/RoleMenu.java
index 4ebf40b..0779612 100644
--- a/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/RoleMenu.java
+++ b/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/RoleMenu.java
@@ -1,4 +1,4 @@
-package com.bpgroup.poc.admin.domain.admin;
+package com.bpgroup.poc.admin.domain.admin.entity;
 
 import com.bpgroup.poc.admin.domain.BaseEntity;
 import jakarta.persistence.*;
diff --git a/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/RoleRepository.java b/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/RoleRepository.java
similarity index 72%
rename from poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/RoleRepository.java
rename to poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/RoleRepository.java
index 449da60..3747729 100644
--- a/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/RoleRepository.java
+++ b/poc/admin/src/main/java/com/bpgroup/poc/admin/domain/admin/entity/RoleRepository.java
@@ -1,4 +1,4 @@
-package com.bpgroup.poc.admin.domain.admin;
+package com.bpgroup.poc.admin.domain.admin.entity;
 
 import org.springframework.data.jpa.repository.JpaRepository;