diff --git a/README.md b/README.md
index a7588b2..b8bbc5f 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,34 @@
 # SpartSwiftGrammer
 내배캠  문법 주차 
+
+## 컨벤션
+
+* [공통](./Convention/Common.md) - 모든 Swift 코드에서 준수해야 하는 컨벤션입니다.
+
+## 🐈‍⬛ Git
+
+### 1️⃣ Git branching Strategy
+
+- Origin(main branch)
+- Origin(dev branch)
+- Local(feature branch)
+
+- Branch
+- Main
+- Dev
+- Feature
+- Fix
+
+- 방법
+- 1. Pull the **Dev** branch of the Origin
+- 2. Make a **Feature** branch in the Local area
+- 3. Developed by **Feature** branch
+- 4. Push the **Feature** from Local to Origin
+- 5. Send a pull request from the origin's **Feature** to the Origin's **Dev**
+- 6. In Origin **Dev**, resolve conflict and merge
+- 7. Fetch and rebase Origin **Dev** from Local **Dev**
+
+
+## Commit 가이드
+
+* [Commit](./.github/.gitMessage.md) -  Commit 가이드입니다
diff --git a/SpartSwiftGrammer.xcodeproj/project.pbxproj b/SpartSwiftGrammer.xcodeproj/project.pbxproj
index ba8c0c4..cb5e405 100644
--- a/SpartSwiftGrammer.xcodeproj/project.pbxproj
+++ b/SpartSwiftGrammer.xcodeproj/project.pbxproj
@@ -259,9 +259,12 @@
 		7F01AB392E554A7500A600E3 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				CODE_SIGN_ENTITLEMENTS = "";
+				"CODE_SIGN_IDENTITY[sdk=macosx*]" = "-";
 				CODE_SIGN_STYLE = Automatic;
 				DEVELOPMENT_TEAM = N94CS4N6VR;
-				ENABLE_HARDENED_RUNTIME = YES;
+				ENABLE_HARDENED_RUNTIME = NO;
+				PRODUCT_BUNDLE_IDENTIFIER = io.Roy.SpartSwiftGrammer;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_VERSION = 6.0;
 			};
@@ -270,9 +273,12 @@
 		7F01AB3A2E554A7500A600E3 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				CODE_SIGN_ENTITLEMENTS = "";
+				"CODE_SIGN_IDENTITY[sdk=macosx*]" = "-";
 				CODE_SIGN_STYLE = Automatic;
 				DEVELOPMENT_TEAM = N94CS4N6VR;
-				ENABLE_HARDENED_RUNTIME = YES;
+				ENABLE_HARDENED_RUNTIME = NO;
+				PRODUCT_BUNDLE_IDENTIFIER = io.Roy.SpartSwiftGrammer;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_VERSION = 6.0;
 			};
diff --git a/SpartSwiftGrammer/Sources/Clouser/SumClosure.swift b/SpartSwiftGrammer/Sources/Clouser/SumClosure.swift
new file mode 100644
index 0000000..cf4d82c
--- /dev/null
+++ b/SpartSwiftGrammer/Sources/Clouser/SumClosure.swift
@@ -0,0 +1,31 @@
+//
+//  SumClosure.swift
+//  SpartSwiftGrammer
+//
+//  Created by Wonji Suh  on 8/20/25.
+//
+
+import Foundation
+import LogMacro
+
+final actor SumClosure {
+
+  static var num: Int = 3
+  static var num2 : Int = 10
+
+   // sum 을 호출 해서 파라메터로  전달
+  static var sum: (Int, Int) -> String = { a, b in
+    "두 수의 합은 \(a + b) 입니다"
+  }
+
+   // 계산 하는 함수 클로져 방식 1
+  static func calculate(_ operation : (Int, Int) -> String,  a: Int, b: Int){
+    #logDebug(operation(a, b))
+  }
+
+  // 계산 하는 함수 클로져 방식 2 Result 추가
+  static func calculate2(_ operation: (Int, Int) -> String, a: Int, b: Int) -> Result<String, Error> {
+    let result = operation(a, b)
+    return .success(result)   
+  }
+}
diff --git a/SpartSwiftGrammer/Sources/HigherOrderFunctions/HigherOrderFunctions.swift b/SpartSwiftGrammer/Sources/HigherOrderFunctions/HigherOrderFunctions.swift
new file mode 100644
index 0000000..129ac82
--- /dev/null
+++ b/SpartSwiftGrammer/Sources/HigherOrderFunctions/HigherOrderFunctions.swift
@@ -0,0 +1,50 @@
+//
+//  HigherOrderFunctions.swift
+//  SpartSwiftGrammer
+//
+//  Created by Wonji Suh  on 8/20/25.
+//
+
+import Foundation
+import LogMacro
+
+final actor HigherOrderFunctions {
+  var numbers: [Int] =  [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+
+  let numbers1 = [1, 2, 3, 4, 5]
+
+
+
+  func mapNumbers() {
+    let result = numbers1.map{ String($0) }
+    #logDebug(result)
+
+  }
+
+
+  func changeType(_  number: [Int]  ) {
+    let result = number
+      .filter { $0 % 2 == 0}
+      .map { String($0)}
+
+    #logDebug("고차 함수 테스트", result)
+  }
+
+  func changeTypeWithMyMap(_ number: [Int]  ) {
+    let result = myMap(number) { number in
+      number % 2 == 0 ? String(number) : ""
+    }.filter { !$0.isEmpty }
+    #logDebug("고차 함수 테스트 with MY MAP", result )
+  }
+
+  func myMap<T , U>(
+    _ array: [T],
+    transform : (T) -> U) -> [U] {
+      var result = [U]()
+      for element in array {
+        result.append(transform(element))
+      }
+      return result
+    }
+}
+
diff --git a/SpartSwiftGrammer/Sources/Main/main.swift b/SpartSwiftGrammer/Sources/Main/main.swift
new file mode 100644
index 0000000..24d425c
--- /dev/null
+++ b/SpartSwiftGrammer/Sources/Main/main.swift
@@ -0,0 +1,18 @@
+//
+//  main.swift
+//  SpartSwiftGrammer
+//
+//  Created by Wonji Suh  on 8/20/25.
+//
+
+import Foundation
+import LogMacro
+
+let higherOrderFunctions = HigherOrderFunctions()
+
+await higherOrderFunctions.changeForinToMap()
+
+await higherOrderFunctions.changeType(higherOrderFunctions.numbers)
+
+await higherOrderFunctions.changeTypeWithMyMap(higherOrderFunctions.numbers)
+