diff --git a/src/entity/application.ts b/src/entity/application.ts
new file mode 100644
index 0000000..16ca0d7
--- /dev/null
+++ b/src/entity/application.ts
@@ -0,0 +1,36 @@
+import { Entity, Column, CreateDateColumn, UpdateDateColumn, DeleteDateColumn, Index, PrimaryColumn } from 'typeorm';
+
+import { Status } from '../types/status';
+
+@Entity('application')
+export class Application {
+    @PrimaryColumn({
+        nullable: false,
+        length: 32
+    })
+    id: string;
+
+    @Column({
+        nullable: false,
+        length: 256
+    })
+    name: string;
+
+    @Column({
+        nullable: false,
+        length: 64
+    })
+    status: Status;
+
+    @Column()
+    @CreateDateColumn()
+    created_at: Date;
+
+    @Column({ nullable: true })
+    @UpdateDateColumn()
+    updated_at: Date;
+
+    @Column({ nullable: true })
+    @DeleteDateColumn()
+    deleted_at: Date;
+}
\ No newline at end of file
diff --git a/src/entity/menu.ts b/src/entity/menu.ts
index 9dc1aa5..70958e6 100644
--- a/src/entity/menu.ts
+++ b/src/entity/menu.ts
@@ -1,12 +1,17 @@
-import { Entity, PrimaryGeneratedColumn, Column, CreateDateColumn, UpdateDateColumn, DeleteDateColumn, Index } from 'typeorm';
+import { Entity, PrimaryGeneratedColumn, Column, CreateDateColumn, UpdateDateColumn, DeleteDateColumn, JoinColumn, ManyToOne } from 'typeorm';
 
 import { Status } from '../types/status';
+import { Application } from './application';
 
 @Entity('menus')
 export class Menu {
     @PrimaryGeneratedColumn('uuid')
     id: string;
 
+    @ManyToOne(() => Application, { onDelete: "RESTRICT" })
+    @JoinColumn({ name: 'application' })
+    application: Application
+
     @Column({
         nullable: false,
         length: 128
diff --git a/src/entity/user_activity.ts b/src/entity/user_activity.ts
index 31fd37d..5ca0a97 100644
--- a/src/entity/user_activity.ts
+++ b/src/entity/user_activity.ts
@@ -1,12 +1,17 @@
-import { Entity, PrimaryGeneratedColumn, Column, CreateDateColumn, UpdateDateColumn, DeleteDateColumn, Index } from 'typeorm';
+import { Entity, PrimaryGeneratedColumn, Column, CreateDateColumn, UpdateDateColumn, DeleteDateColumn, Index, JoinColumn, ManyToOne } from 'typeorm';
 
 import { ActivityType } from '../types/action';
+import { Application } from './application';
 
 @Entity('user_activities')
 export class UserActivity {
     @PrimaryGeneratedColumn('uuid')
     id: string;
 
+    @ManyToOne(() => Application, { onDelete: "RESTRICT" })
+    @JoinColumn({ name: 'application' })
+    application: Application
+
     @Index()
     @Column({
         type: 'uuid'
diff --git a/src/entity/users_roles.ts b/src/entity/users_roles.ts
index 4893d54..940fd76 100644
--- a/src/entity/users_roles.ts
+++ b/src/entity/users_roles.ts
@@ -1,12 +1,17 @@
-import { Entity, PrimaryGeneratedColumn, Column, CreateDateColumn, UpdateDateColumn, DeleteDateColumn } from 'typeorm';
+import { Entity, PrimaryGeneratedColumn, Column, CreateDateColumn, UpdateDateColumn, DeleteDateColumn, JoinColumn, ManyToOne } from 'typeorm';
 
 import { Status } from '../types/status';
+import { Application } from './application';
 
 @Entity('user_roles')
 export class UserRole {
     @PrimaryGeneratedColumn('uuid')
     id: string;
 
+    @ManyToOne(() => Application, { onDelete: "RESTRICT" })
+    @JoinColumn({ name: 'application' })
+    application: Application
+
     @Column({
         nullable: false,
         unique: true,
diff --git a/src/index.ts b/src/index.ts
index aba55e4..e4098da 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -45,6 +45,7 @@ import { CreditTypeForms } from "./entity/credit_type_forms";
 import { CreditApplication } from "./entity/credit_applications";
 import { CreditApplicationStatus } from "./types/credit";
 import { CreditApplicationForm } from "./entity/credit_application_forms";
+import { Application } from "./entity/application";
 
 export {
     User, //
@@ -97,5 +98,6 @@ export {
     CreditTypeForms,
     CreditApplication,
     CreditApplicationStatus,
-    CreditApplicationForm
+    CreditApplicationForm,
+    Application
 };