diff --git a/Projects/App/Sources/Application/AppDelegate.swift b/Projects/App/Sources/Application/AppDelegate.swift
new file mode 100644
index 0000000..463dc64
--- /dev/null
+++ b/Projects/App/Sources/Application/AppDelegate.swift
@@ -0,0 +1,35 @@
+//
+//  AppDelegate.swift
+//  App
+//
+//  Created by 박서연 on 2024/06/20.
+//  Copyright © 2024 iOS. All rights reserved.
+//
+
+import Foundation
+import UIKit
+
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    func application(
+        _ application: UIApplication,
+        didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
+    ) -> Bool {
+        return true
+    }
+
+    // MARK: UISceneSession Lifecycle
+
+    func application(
+        _ application: UIApplication,
+        configurationForConnecting connectingSceneSession: UISceneSession,
+        options: UIScene.ConnectionOptions
+    ) -> UISceneConfiguration {
+        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
+    }
+
+    func application(
+        _ application: UIApplication,
+        didDiscardSceneSessions sceneSessions: Set<UISceneSession>
+    ) {}
+}
diff --git a/Projects/App/Sources/Application/SceneDelegate.swift b/Projects/App/Sources/Application/SceneDelegate.swift
new file mode 100644
index 0000000..99c56ef
--- /dev/null
+++ b/Projects/App/Sources/Application/SceneDelegate.swift
@@ -0,0 +1,39 @@
+//
+//  SceneDelegate.swift
+//  App
+//
+//  Created by 박서연 on 2024/06/20.
+//  Copyright © 2024 iOS. All rights reserved.
+//
+
+import Foundation
+import UIKit
+
+class SceneDelegate: UIResponder, UIWindowSceneDelegate {
+
+    var window: UIWindow?
+
+    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
+        guard let windowScene = (scene as? UIWindowScene) else { return }
+    }
+
+    func sceneDidDisconnect(_ scene: UIScene) {
+        // 사용자가 앱을 종료할 때 실행되는 코드
+    }
+
+    func sceneDidBecomeActive(_ scene: UIScene) {
+        // 앱이 활성화되어 사용 가능한 상태가 되었을 때 실행되는 코드
+    }
+
+    func sceneWillResignActive(_ scene: UIScene) {
+        // 앱이 비활성화되어 일시 중지된 상태가 될 때 실행되는 코드
+    }
+
+    func sceneWillEnterForeground(_ scene: UIScene) {
+        // 앱이 백그라운드에서 포그라운드로 전환되기 직전에 실행되는 코드
+    }
+
+    func sceneDidEnterBackground(_ scene: UIScene) {
+        // 앱이 백그라운드로 들어갔을 때 실행되는 코드
+    }
+}
diff --git a/Projects/App/Sources/Data/EndPoint/EndPoint.swift b/Projects/App/Sources/Data/EndPoint/EndPoint.swift
new file mode 100644
index 0000000..5ac0087
--- /dev/null
+++ b/Projects/App/Sources/Data/EndPoint/EndPoint.swift
@@ -0,0 +1,24 @@
+//
+//  EndPoint.swift
+//  App
+//
+//  Created by 박서연 on 2024/06/20.
+//  Copyright © 2024 iOS. All rights reserved.
+//
+
+import Foundation
+
+struct APIEndPoint {
+    static let baseURL = ""
+    
+    enum Auth {
+        case login
+        case checkNickname
+        case join
+        case logout
+    }
+    
+    enum Home {
+        case product
+    }
+}
diff --git a/Projects/App/Sources/Data/Error/NetworkError.swift b/Projects/App/Sources/Data/Error/NetworkError.swift
new file mode 100644
index 0000000..0ef78eb
--- /dev/null
+++ b/Projects/App/Sources/Data/Error/NetworkError.swift
@@ -0,0 +1,17 @@
+//
+//  NetworkError.swift
+//  App
+//
+//  Created by 박서연 on 2024/06/20.
+//  Copyright © 2024 iOS. All rights reserved.
+//
+
+import Foundation
+
+enum NetworkError: Error {
+    case notConnected
+    case response
+    case decode
+    case apiError
+    case urlError
+}
diff --git a/Projects/App/Sources/Data/Mapper/ResultMapper.swift b/Projects/App/Sources/Data/Mapper/ResultMapper.swift
new file mode 100644
index 0000000..91bc3ef
--- /dev/null
+++ b/Projects/App/Sources/Data/Mapper/ResultMapper.swift
@@ -0,0 +1,11 @@
+//
+//  ResultMapper.swift
+//  App
+//
+//  Created by 박서연 on 2024/06/20.
+//  Copyright © 2024 iOS. All rights reserved.
+//
+
+import Foundation
+
+// Decoder 또는 옵셔널 Mapper 생성 
diff --git a/Projects/App/Sources/Data/Repository/AuthRepository.swift b/Projects/App/Sources/Data/Repository/AuthRepository.swift
new file mode 100644
index 0000000..307a610
--- /dev/null
+++ b/Projects/App/Sources/Data/Repository/AuthRepository.swift
@@ -0,0 +1,20 @@
+//
+//  DataRepository.swift
+//  App
+//
+//  Created by 박서연 on 2024/06/20.
+//  Copyright © 2024 iOS. All rights reserved.
+//
+
+import Foundation
+
+class AuthRepository: AuthRepositoryProtocol {
+    
+    let apiService = ApiService()
+    
+    func kakaoLogin(_ token: String) async -> Result<String, NetworkError> {
+        // TODO: - Implement Kakao Login
+        
+        return .success("success")
+    }
+}
diff --git a/Projects/App/Sources/Data/Service/ApiService.swift b/Projects/App/Sources/Data/Service/ApiService.swift
new file mode 100644
index 0000000..6785151
--- /dev/null
+++ b/Projects/App/Sources/Data/Service/ApiService.swift
@@ -0,0 +1,31 @@
+//
+//  ApiService.swift
+//  App
+//
+//  Created by 박서연 on 2024/06/20.
+//  Copyright © 2024 iOS. All rights reserved.
+//
+
+import Foundation
+
+enum ApiMethod {
+    case get
+    case put
+    case post
+    case patch
+    case delete
+}
+
+class ApiService {
+    func request(
+        apiMethod: ApiMethod,
+        endPoint: String,
+        QueryParameter: [String : String]? = nil
+    ) async -> Result<Data, NetworkError> {
+        return .failure(.notConnected)
+        
+        // TODO: - Network 작업
+
+    }
+}
+
diff --git a/Projects/App/Sources/Domain/Repository/AuthRepositoryProtocol.swift b/Projects/App/Sources/Domain/Repository/AuthRepositoryProtocol.swift
new file mode 100644
index 0000000..f934b7d
--- /dev/null
+++ b/Projects/App/Sources/Domain/Repository/AuthRepositoryProtocol.swift
@@ -0,0 +1,15 @@
+//
+//  AuthReposity.swift
+//  App
+//
+//  Created by 박서연 on 2024/06/20.
+//  Copyright © 2024 iOS. All rights reserved.
+//
+
+import Foundation
+
+// Implement Auth Interface
+protocol AuthRepositoryProtocol {
+    func kakaoLogin(_ token: String) async -> Result<String, NetworkError>
+}
+
diff --git a/Projects/App/Sources/Domain/Usecase/Usecase.swift b/Projects/App/Sources/Domain/Usecase/Usecase.swift
new file mode 100644
index 0000000..04a0d67
--- /dev/null
+++ b/Projects/App/Sources/Domain/Usecase/Usecase.swift
@@ -0,0 +1,17 @@
+//
+//  Usecase.swift
+//  App
+//
+//  Created by 박서연 on 2024/06/20.
+//  Copyright © 2024 iOS. All rights reserved.
+//
+
+import Foundation
+
+struct AuthUseCase {
+    let authRepositoryProtocol: AuthRepositoryProtocol
+    
+    func kakaoLogin(_ token: String) async -> Result<String, NetworkError> {
+        return await authRepositoryProtocol.kakaoLogin(token)
+    }
+}
diff --git a/Projects/App/Sources/Extension/Common.swift b/Projects/App/Sources/Extension/Common.swift
deleted file mode 100644
index 1b0862b..0000000
--- a/Projects/App/Sources/Extension/Common.swift
+++ /dev/null
@@ -1,15 +0,0 @@
-//
-//  Common.swift
-//  App
-//
-//  Created by 박서연 on 2024/06/08.
-//  Copyright © 2024 iOS. All rights reserved.
-//
-
-import Foundation
-import SwiftUI
-
-struct Size {
-    static let width = UIScreen.main.bounds.width
-    static let height = UIScreen.main.bounds.height
-}
diff --git a/Projects/App/Sources/Presentation/Categoery/CategoeryMain.swift b/Projects/App/Sources/Presentation/Categoery/Main/CategoeryMain.swift
similarity index 100%
rename from Projects/App/Sources/Presentation/Categoery/CategoeryMain.swift
rename to Projects/App/Sources/Presentation/Categoery/Main/CategoeryMain.swift
diff --git a/Projects/App/Sources/Presentation/Detail/NoneZeroView.swift b/Projects/App/Sources/Presentation/Detail/Main/NoneZeroView.swift
similarity index 100%
rename from Projects/App/Sources/Presentation/Detail/NoneZeroView.swift
rename to Projects/App/Sources/Presentation/Detail/Main/NoneZeroView.swift
diff --git a/Projects/App/Sources/Presentation/Detail/ProductDetailView.swift b/Projects/App/Sources/Presentation/Detail/Main/ProductDetailView.swift
similarity index 100%
rename from Projects/App/Sources/Presentation/Detail/ProductDetailView.swift
rename to Projects/App/Sources/Presentation/Detail/Main/ProductDetailView.swift
diff --git a/Projects/App/Sources/Presentation/Detail/SimiliarProductView.swift b/Projects/App/Sources/Presentation/Detail/Main/SimiliarProductView.swift
similarity index 100%
rename from Projects/App/Sources/Presentation/Detail/SimiliarProductView.swift
rename to Projects/App/Sources/Presentation/Detail/Main/SimiliarProductView.swift
diff --git a/Projects/App/Sources/Presentation/Home/HomeMain.swift b/Projects/App/Sources/Presentation/Home/Main/HomeMain.swift
similarity index 100%
rename from Projects/App/Sources/Presentation/Home/HomeMain.swift
rename to Projects/App/Sources/Presentation/Home/Main/HomeMain.swift