diff --git a/SignUp/.DS_Store b/SignUp/.DS_Store
new file mode 100644
index 0000000..42a542b
Binary files /dev/null and b/SignUp/.DS_Store differ
diff --git a/SignUp/SignUp.xcodeproj/project.pbxproj b/SignUp/SignUp.xcodeproj/project.pbxproj
index e987da9..9e869ca 100644
--- a/SignUp/SignUp.xcodeproj/project.pbxproj
+++ b/SignUp/SignUp.xcodeproj/project.pbxproj
@@ -14,13 +14,13 @@
 		B075D0F326119A7F00731DAC /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = B075D0F226119A7F00731DAC /* Assets.xcassets */; };
 		B075D0F626119A7F00731DAC /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = B075D0F426119A7F00731DAC /* LaunchScreen.storyboard */; };
 		B075D1012611BBC700731DAC /* TextFieldDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = B075D1002611BBC700731DAC /* TextFieldDelegate.swift */; };
-		B075D1042611BEB600731DAC /* Notification+Extension.swift in Sources */ = {isa = PBXBuildFile; fileRef = B075D1032611BEB600731DAC /* Notification+Extension.swift */; };
-		B075D1072611D07800731DAC /* textFormError.swift in Sources */ = {isa = PBXBuildFile; fileRef = B075D1062611D07800731DAC /* textFormError.swift */; };
 		B075D10B261207A600731DAC /* ComplianceChecker.swift in Sources */ = {isa = PBXBuildFile; fileRef = B075D10A261207A600731DAC /* ComplianceChecker.swift */; };
 		B075D10E261209C300731DAC /* UITextField+Extension.swift in Sources */ = {isa = PBXBuildFile; fileRef = B075D10D261209C300731DAC /* UITextField+Extension.swift */; };
-		B075D11126120A5900731DAC /* UILabel+Extension.swift in Sources */ = {isa = PBXBuildFile; fileRef = B075D11026120A5900731DAC /* UILabel+Extension.swift */; };
 		B075D1162612F4AD00731DAC /* UserInfomation.swift in Sources */ = {isa = PBXBuildFile; fileRef = B075D1152612F4AD00731DAC /* UserInfomation.swift */; };
 		B075D11A261300FB00731DAC /* NetworkManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = B075D119261300FB00731DAC /* NetworkManager.swift */; };
+		B075D12026158BED00731DAC /* SignUpTextField.swift in Sources */ = {isa = PBXBuildFile; fileRef = B075D11F26158BED00731DAC /* SignUpTextField.swift */; };
+		B075D1262616003400731DAC /* ErrorCheckResult.swift in Sources */ = {isa = PBXBuildFile; fileRef = B075D1252616003400731DAC /* ErrorCheckResult.swift */; };
+		B075D12B26195E2200731DAC /* Notification.name+Extension.swift in Sources */ = {isa = PBXBuildFile; fileRef = B075D12A26195E2100731DAC /* Notification.name+Extension.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
@@ -33,13 +33,13 @@
 		B075D0F526119A7F00731DAC /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
 		B075D0F726119A7F00731DAC /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		B075D1002611BBC700731DAC /* TextFieldDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TextFieldDelegate.swift; sourceTree = "<group>"; };
-		B075D1032611BEB600731DAC /* Notification+Extension.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Notification+Extension.swift"; sourceTree = "<group>"; };
-		B075D1062611D07800731DAC /* textFormError.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = textFormError.swift; sourceTree = "<group>"; };
 		B075D10A261207A600731DAC /* ComplianceChecker.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ComplianceChecker.swift; sourceTree = "<group>"; };
 		B075D10D261209C300731DAC /* UITextField+Extension.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UITextField+Extension.swift"; sourceTree = "<group>"; };
-		B075D11026120A5900731DAC /* UILabel+Extension.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UILabel+Extension.swift"; sourceTree = "<group>"; };
 		B075D1152612F4AD00731DAC /* UserInfomation.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UserInfomation.swift; sourceTree = "<group>"; };
 		B075D119261300FB00731DAC /* NetworkManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NetworkManager.swift; sourceTree = "<group>"; };
+		B075D11F26158BED00731DAC /* SignUpTextField.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SignUpTextField.swift; sourceTree = "<group>"; };
+		B075D1252616003400731DAC /* ErrorCheckResult.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ErrorCheckResult.swift; sourceTree = "<group>"; };
+		B075D12A26195E2100731DAC /* Notification.name+Extension.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Notification.name+Extension.swift"; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -86,13 +86,14 @@
 		B075D0FE26119C0200731DAC /* SignUpView */ = {
 			isa = PBXGroup;
 			children = (
+				B075D11E26158BDA00731DAC /* View */,
 				B075D0ED26119A7D00731DAC /* SignUpViewController.swift */,
 				B075D0EF26119A7D00731DAC /* Main.storyboard */,
 				B075D1002611BBC700731DAC /* TextFieldDelegate.swift */,
-				B075D1062611D07800731DAC /* textFormError.swift */,
 				B075D10A261207A600731DAC /* ComplianceChecker.swift */,
 				B075D119261300FB00731DAC /* NetworkManager.swift */,
 				B075D1152612F4AD00731DAC /* UserInfomation.swift */,
+				B075D1252616003400731DAC /* ErrorCheckResult.swift */,
 			);
 			path = SignUpView;
 			sourceTree = "<group>";
@@ -100,13 +101,20 @@
 		B075D1132612121800731DAC /* Extension */ = {
 			isa = PBXGroup;
 			children = (
-				B075D1032611BEB600731DAC /* Notification+Extension.swift */,
 				B075D10D261209C300731DAC /* UITextField+Extension.swift */,
-				B075D11026120A5900731DAC /* UILabel+Extension.swift */,
+				B075D12A26195E2100731DAC /* Notification.name+Extension.swift */,
 			);
 			path = Extension;
 			sourceTree = "<group>";
 		};
+		B075D11E26158BDA00731DAC /* View */ = {
+			isa = PBXGroup;
+			children = (
+				B075D11F26158BED00731DAC /* SignUpTextField.swift */,
+			);
+			path = View;
+			sourceTree = "<group>";
+		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -180,14 +188,14 @@
 				B075D10B261207A600731DAC /* ComplianceChecker.swift in Sources */,
 				B075D0EE26119A7D00731DAC /* SignUpViewController.swift in Sources */,
 				B075D0EA26119A7D00731DAC /* AppDelegate.swift in Sources */,
-				B075D1072611D07800731DAC /* textFormError.swift in Sources */,
+				B075D12026158BED00731DAC /* SignUpTextField.swift in Sources */,
+				B075D12B26195E2200731DAC /* Notification.name+Extension.swift in Sources */,
+				B075D1262616003400731DAC /* ErrorCheckResult.swift in Sources */,
 				B075D11A261300FB00731DAC /* NetworkManager.swift in Sources */,
 				B075D1162612F4AD00731DAC /* UserInfomation.swift in Sources */,
 				B075D1012611BBC700731DAC /* TextFieldDelegate.swift in Sources */,
 				B075D10E261209C300731DAC /* UITextField+Extension.swift in Sources */,
-				B075D1042611BEB600731DAC /* Notification+Extension.swift in Sources */,
 				B075D0EC26119A7D00731DAC /* SceneDelegate.swift in Sources */,
-				B075D11126120A5900731DAC /* UILabel+Extension.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
diff --git a/SignUp/SignUp.xcodeproj/project.xcworkspace/xcuserdata/idahun.xcuserdatad/UserInterfaceState.xcuserstate b/SignUp/SignUp.xcodeproj/project.xcworkspace/xcuserdata/idahun.xcuserdatad/UserInterfaceState.xcuserstate
index 3fe5dbe..a0a88a0 100644
Binary files a/SignUp/SignUp.xcodeproj/project.xcworkspace/xcuserdata/idahun.xcuserdatad/UserInterfaceState.xcuserstate and b/SignUp/SignUp.xcodeproj/project.xcworkspace/xcuserdata/idahun.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/SignUp/SignUp/AppDelegate.swift b/SignUp/SignUp/AppDelegate.swift
index 8ea4529..952e98f 100644
--- a/SignUp/SignUp/AppDelegate.swift
+++ b/SignUp/SignUp/AppDelegate.swift
@@ -9,28 +9,10 @@ import UIKit
 
 @main
 class AppDelegate: UIResponder, UIApplicationDelegate {
-
-
-
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
-        // Override point for customization after application launch.
-        return true
-    }
-
-    // MARK: UISceneSession Lifecycle
-
     func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
         // Called when a new scene session is being created.
         // Use this method to select a configuration to create the new scene with.
         return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
     }
-
-    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
-        // Called when the user discards a scene session.
-        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
-        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
-    }
-
-
 }
 
diff --git a/SignUp/SignUp/Extension/Notification+Extension.swift b/SignUp/SignUp/Extension/Notification+Extension.swift
deleted file mode 100644
index bc981d7..0000000
--- a/SignUp/SignUp/Extension/Notification+Extension.swift
+++ /dev/null
@@ -1,15 +0,0 @@
-//
-//  Notification+Extension.swift
-//  SignUp
-//
-//  Created by 이다훈 on 2021/03/29.
-//
-
-import Foundation
-
-extension Notification.Name {
-    static let idTextField = Notification.Name("idTextField")
-    static let pwTextField = Notification.Name("pwTextField")
-    static let pw2TextField = Notification.Name("pw2TextField")
-    static let nameTextField = Notification.Name("nameTextField")
-}
diff --git a/SignUp/SignUp/Extension/Notification.name+Extension.swift b/SignUp/SignUp/Extension/Notification.name+Extension.swift
new file mode 100644
index 0000000..a8230ae
--- /dev/null
+++ b/SignUp/SignUp/Extension/Notification.name+Extension.swift
@@ -0,0 +1,13 @@
+//
+//  Notification.name+Extension.swift
+//  SignUp
+//
+//  Created by 이다훈 on 2021/04/04.
+//
+
+import Foundation
+
+extension Notification.Name {
+    static let uiUpdate = Notification.Name.init("uiUpdate")
+    static let nextButtonEnableCheck = Notification.Name.init("nextButtonEnableCheck")
+}
diff --git a/SignUp/SignUp/Extension/UILabel+Extension.swift b/SignUp/SignUp/Extension/UILabel+Extension.swift
deleted file mode 100644
index 11cf3c2..0000000
--- a/SignUp/SignUp/Extension/UILabel+Extension.swift
+++ /dev/null
@@ -1,15 +0,0 @@
-//
-//  UILabel+Extension.swift
-//  SignUp
-//
-//  Created by 이다훈 on 2021/03/29.
-//
-
-import UIKit
-
-extension UILabel {
-    func changeTextNColor(color : UIColor, text : String) {
-        self.textColor = color
-        self.text = text
-    }
-}
diff --git a/SignUp/SignUp/Extension/UITextField+Extension.swift b/SignUp/SignUp/Extension/UITextField+Extension.swift
index c0af4dd..f58de61 100644
--- a/SignUp/SignUp/Extension/UITextField+Extension.swift
+++ b/SignUp/SignUp/Extension/UITextField+Extension.swift
@@ -8,7 +8,7 @@
 import UIKit
 
 extension UITextField {
-    func changeBorderColor(color : CGColor) {
+    func changeBorder(color : CGColor) {
         self.layer.borderWidth = 1
         self.layer.borderColor = color
     }
diff --git a/SignUp/SignUp/SceneDelegate.swift b/SignUp/SignUp/SceneDelegate.swift
index 714600d..5f903a7 100644
--- a/SignUp/SignUp/SceneDelegate.swift
+++ b/SignUp/SignUp/SceneDelegate.swift
@@ -8,45 +8,6 @@
 import UIKit
 
 class SceneDelegate: UIResponder, UIWindowSceneDelegate {
-
     var window: UIWindow?
-
-
-    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
-        // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
-        // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
-        // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
-        guard let _ = (scene as? UIWindowScene) else { return }
-    }
-
-    func sceneDidDisconnect(_ scene: UIScene) {
-        // Called as the scene is being released by the system.
-        // This occurs shortly after the scene enters the background, or when its session is discarded.
-        // Release any resources associated with this scene that can be re-created the next time the scene connects.
-        // The scene may re-connect later, as its session was not necessarily discarded (see `application:didDiscardSceneSessions` instead).
-    }
-
-    func sceneDidBecomeActive(_ scene: UIScene) {
-        // Called when the scene has moved from an inactive state to an active state.
-        // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
-    }
-
-    func sceneWillResignActive(_ scene: UIScene) {
-        // Called when the scene will move from an active state to an inactive state.
-        // This may occur due to temporary interruptions (ex. an incoming phone call).
-    }
-
-    func sceneWillEnterForeground(_ scene: UIScene) {
-        // Called as the scene transitions from the background to the foreground.
-        // Use this method to undo the changes made on entering the background.
-    }
-
-    func sceneDidEnterBackground(_ scene: UIScene) {
-        // Called as the scene transitions from the foreground to the background.
-        // Use this method to save data, release shared resources, and store enough scene-specific state information
-        // to restore the scene back to its current state.
-    }
-
-
 }
 
diff --git a/SignUp/SignUp/SignUpView/Base.lproj/Main.storyboard b/SignUp/SignUp/SignUpView/Base.lproj/Main.storyboard
index a915d61..f9401c6 100644
--- a/SignUp/SignUp/SignUpView/Base.lproj/Main.storyboard
+++ b/SignUp/SignUp/SignUpView/Base.lproj/Main.storyboard
@@ -24,11 +24,11 @@
                             </label>
                             <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="아이디" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="VJx-4Y-Gnu">
                                 <rect key="frame" x="50" y="130" width="44.5" height="21"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <fontDescription key="fontDescription" type="boldSystem" pointSize="17"/>
                                 <nil key="textColor"/>
                                 <nil key="highlightedColor"/>
                             </label>
-                            <textField opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="center" borderStyle="roundedRect" placeholder="영문 소문자, 숫자, 특수기호(_,-), 5~20자" textAlignment="natural" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="zWM-E2-dTE">
+                            <textField opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="center" borderStyle="roundedRect" placeholder="영문 소문자, 숫자, 특수기호(_,-), 5~20자" textAlignment="natural" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="zWM-E2-dTE" customClass="SignUpTextField" customModule="SignUp" customModuleProvider="target">
                                 <rect key="frame" x="50" y="161" width="314" height="34"/>
                                 <accessibility key="accessibilityConfiguration" identifier="IDTextField"/>
                                 <fontDescription key="fontDescription" type="system" pointSize="14"/>
@@ -36,23 +36,23 @@
                             </textField>
                             <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="비밀번호" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="rEz-eM-4Vv">
                                 <rect key="frame" x="50" y="235" width="59" height="21"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <fontDescription key="fontDescription" type="boldSystem" pointSize="17"/>
                                 <nil key="textColor"/>
                                 <nil key="highlightedColor"/>
                             </label>
-                            <textField opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="center" borderStyle="roundedRect" placeholder="영문 대/소문자, 숫자, 특수문자(!@#$%) 8~16자" textAlignment="natural" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="Hcs-Zj-XMM">
+                            <textField opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="center" borderStyle="roundedRect" placeholder="영문 대/소문자, 숫자, 특수문자(!@#$%) 8~16자" textAlignment="natural" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="Hcs-Zj-XMM" customClass="SignUpTextField" customModule="SignUp" customModuleProvider="target">
                                 <rect key="frame" x="50" y="266" width="314" height="34"/>
                                 <accessibility key="accessibilityConfiguration" identifier="PWTextField"/>
                                 <fontDescription key="fontDescription" type="system" pointSize="14"/>
                                 <textInputTraits key="textInputTraits" secureTextEntry="YES"/>
                             </textField>
                             <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="비밀번호 재확인" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Iqj-1i-dPb">
-                                <rect key="frame" x="50" y="340" width="107.5" height="21"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <rect key="frame" x="50" y="340" width="107" height="21"/>
+                                <fontDescription key="fontDescription" type="boldSystem" pointSize="17"/>
                                 <nil key="textColor"/>
                                 <nil key="highlightedColor"/>
                             </label>
-                            <textField opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="center" borderStyle="roundedRect" textAlignment="natural" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="ItE-8L-9aq">
+                            <textField opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="center" borderStyle="roundedRect" textAlignment="natural" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="ItE-8L-9aq" customClass="SignUpTextField" customModule="SignUp" customModuleProvider="target">
                                 <rect key="frame" x="50" y="371" width="314" height="34"/>
                                 <accessibility key="accessibilityConfiguration" identifier="PW2TextField"/>
                                 <fontDescription key="fontDescription" type="system" pointSize="14"/>
@@ -60,45 +60,45 @@
                             </textField>
                             <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="이름" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Nrg-5E-qXq">
                                 <rect key="frame" x="50" y="445" width="29.5" height="21"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <fontDescription key="fontDescription" type="boldSystem" pointSize="17"/>
                                 <nil key="textColor"/>
                                 <nil key="highlightedColor"/>
                             </label>
-                            <textField opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="center" borderStyle="roundedRect" textAlignment="natural" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="8Ya-AM-ax4">
+                            <textField opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="center" borderStyle="roundedRect" textAlignment="natural" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="8Ya-AM-ax4" customClass="SignUpTextField" customModule="SignUp" customModuleProvider="target">
                                 <rect key="frame" x="50" y="476" width="314" height="34"/>
                                 <accessibility key="accessibilityConfiguration" identifier="NameTextField"/>
                                 <fontDescription key="fontDescription" type="system" pointSize="14"/>
                                 <textInputTraits key="textInputTraits"/>
                             </textField>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="IDInformation" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="UGB-4c-3tn">
-                                <rect key="frame" x="50" y="196" width="314" height="21"/>
+                            <label hidden="YES" opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="IDInformation" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontForContentSizeCategory="YES" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="UGB-4c-3tn">
+                                <rect key="frame" x="50" y="196" width="314" height="14.5"/>
                                 <accessibility key="accessibilityConfiguration" identifier="IDInformation"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="12"/>
                                 <nil key="textColor"/>
                                 <nil key="highlightedColor"/>
                             </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="PWInformation" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="UUy-k4-IOf">
-                                <rect key="frame" x="50" y="301" width="314" height="21"/>
+                            <label hidden="YES" opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="PWInformation" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontForContentSizeCategory="YES" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="UUy-k4-IOf">
+                                <rect key="frame" x="50" y="301" width="314" height="14.5"/>
                                 <accessibility key="accessibilityConfiguration" identifier="PWInformation"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="12"/>
                                 <nil key="textColor"/>
                                 <nil key="highlightedColor"/>
                             </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="PW2Information" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="GYr-33-deJ">
-                                <rect key="frame" x="50" y="406" width="314" height="21"/>
+                            <label hidden="YES" opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="PW2Information" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontForContentSizeCategory="YES" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="GYr-33-deJ">
+                                <rect key="frame" x="50" y="406" width="314" height="14.5"/>
                                 <accessibility key="accessibilityConfiguration" identifier="PW2Information"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="12"/>
                                 <nil key="textColor"/>
                                 <nil key="highlightedColor"/>
                             </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="NameInformation" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="GcQ-Oj-2fz">
-                                <rect key="frame" x="50" y="511" width="314" height="21"/>
+                            <label hidden="YES" opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="NameInformation" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontForContentSizeCategory="YES" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="GcQ-Oj-2fz">
+                                <rect key="frame" x="50" y="511" width="314" height="14.5"/>
                                 <accessibility key="accessibilityConfiguration" identifier="NameInformation"/>
-                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="12"/>
                                 <nil key="textColor"/>
                                 <nil key="highlightedColor"/>
                             </label>
-                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="csf-km-MRI">
+                            <button opaque="NO" contentMode="scaleToFill" enabled="NO" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="csf-km-MRI">
                                 <rect key="frame" x="150" y="644" width="114" height="68"/>
                                 <fontDescription key="fontDescription" type="boldSystem" pointSize="25"/>
                                 <color key="tintColor" systemColor="systemGreenColor"/>
@@ -156,6 +156,7 @@
                     </view>
                     <navigationItem key="navigationItem" id="HKE-VS-fTt"/>
                     <connections>
+                        <outlet property="nextButton" destination="csf-km-MRI" id="Yvg-tv-Wpn"/>
                         <outletCollection property="categoryLabelCollection" destination="VJx-4Y-Gnu" collectionClass="NSMutableArray" id="x59-q8-mkW"/>
                         <outletCollection property="categoryLabelCollection" destination="rEz-eM-4Vv" collectionClass="NSMutableArray" id="Br3-yg-4SV"/>
                         <outletCollection property="categoryLabelCollection" destination="Iqj-1i-dPb" collectionClass="NSMutableArray" id="8DU-4T-EzX"/>
diff --git a/SignUp/SignUp/SignUpView/ComplianceChecker.swift b/SignUp/SignUp/SignUpView/ComplianceChecker.swift
index 3f926af..2934eb1 100644
--- a/SignUp/SignUp/SignUpView/ComplianceChecker.swift
+++ b/SignUp/SignUp/SignUpView/ComplianceChecker.swift
@@ -8,68 +8,130 @@
 import Foundation
 
 struct ComplianceChecker {
-    let networkManager = NetworkManager()
+    
+    func check(target textField: SignUpTextField, closure : @escaping (ErrorCheckResult)->Void = {_ in }) -> ErrorCheckResult {
+        
+        guard let text = textField.text else {
+            return ErrorResult.init()
+        }
+        
+        switch textField.textFieldType {
+        case .id:
+            return checkIdTextForm(with: text, closure: closure)
+        case .pw:
+            return checkPwTextForm(with: text)
+        case .pw2:
+            return checkPwDuplicated(with: textField)
+        case .name:
+            return checkNameIsNil(with: text)
+        default:
+            return ErrorResult.init()
+        }
+    }
+    
+    private func generateRegexString(target : String, pattern : String) -> String {
+        guard let regex = try? NSRegularExpression(pattern: pattern) else {
+            return ""
+        }
+        
+        let regexedTarget = regex.matches(in: target, options: [], range: NSRange(location: 0, length: target.utf16.count))
+        let resultString = regexedTarget.map({
+            String(describing: target[Range($0.range, in: target)!])
+        }).joined()
+        
+        return resultString
+    }
     
     private func regexChekcing(target : String, pattern : String) -> Bool {
-        do {
-            let regex = try NSRegularExpression(pattern: pattern)
-            
-            let regexedTarget = regex.matches(in: target, options: [], range: NSRange(location: 0, length: target.utf16.count))
-            let resultString = regexedTarget.map({
-                String(describing: target[Range($0.range, in: target)!])
-            }).joined()
-            
-            if resultString == "" {
-                return false
-            }
-            
-            if resultString != target {
-                return false
-            }
-        } catch {
-            print(error)
+        
+        let resultString = generateRegexString(target: target, pattern: pattern)
+        
+        if resultString == "" {
+            return false
         }
+        
+        if resultString != target {
+            return false
+        }
+        
         return true
     }
     
-    func checkIdTextForm(with text : String, closure : @escaping (IdTextFormError)->Void ) {
-        var usedCheck : IdTextFormError = .none
+    private func checkIdTextForm(with text : String, closure: @escaping (ErrorCheckResult)->Void) -> ErrorCheckResult{
+        let errorChecker = ErrorResult()
         
-        networkManager.getUserList(closure: { userList in
+        if !regexChekcing(target: text, pattern: "([^A-Z][0-9a-z-_]).{3,18}") {
+            errorChecker.isError = true
+            errorChecker.message = ErrorMessage.idIneligible.rawValue
+            return errorChecker
+        }
+        
+        NetworkManager.shared.getUserList(closure: { userList in
             if let userList = userList {
-                
-                if userList.contains(text) {
-                    usedCheck = .used
-                } else {
-                    usedCheck = .ok
-                }
-                
-                if !regexChekcing(target: text, pattern: "([^A-Z][0-9a-z-_]).{3,18}") {
-                    usedCheck = .wrong
-                }
-                closure(usedCheck)
+                decideIdError(target: text, array: userList, do: closure)
             }
         })
+        return errorChecker
+    }
+    
+    private func decideIdError (target text : String, array userList : [String], do closure: @escaping (ErrorCheckResult)->Void) {
+        let errorChecker = ErrorResult()
+        
+        if userList.contains(text) {
+            errorChecker.isError = true
+            errorChecker.message = ErrorMessage.idUsed.rawValue
+        } else {
+            errorChecker.isError = false
+            errorChecker.message = ErrorMessage.idIsOk.rawValue
+        }
+        
+        closure(errorChecker)
     }
     
-    func checkPwTextForm(with text : String) -> PwTextFormError {
+    private func checkPwTextForm(with text : String) -> ErrorCheckResult {
         if !regexChekcing(target: text, pattern :"([A-Za-z0-9!@#$%]).{7,15}") {
-            return .outOfIndex
+            return ErrorResult.init(isError: true, message: ErrorMessage.pwOutOfIndex.rawValue)
         }
         
         if !regexChekcing(target: text, pattern :"^.*(?=.*[A-Z])[A-Za-z0-9!@#$%].*$") {
-            return .noUpperCase
+            return ErrorResult.init(isError: true, message: ErrorMessage.pwNoUpperCase.rawValue)
         }
         
         if !regexChekcing(target: text, pattern :"^.*(?=.*[0-9])[A-Za-z0-9!@#$%].*$") {
-            return .noNumber
+            return ErrorResult.init(isError: true, message: ErrorMessage.pwNoNumber.rawValue)
         }
         
         if !regexChekcing(target: text, pattern :"^.*(?=.*[!@#$%])[A-Za-z0-9!@#$%].*$") {
-            return .noSpecialCharacter
+            return ErrorResult.init(isError: true, message: ErrorMessage.pwNoSpecialCharacter.rawValue)
         }
         
-        return .ok
+        return ErrorResult.init(isError: false, message: ErrorMessage.pwIsOk.rawValue)
+    }
+    
+    private func checkPwDuplicated(with textField : SignUpTextField) -> ErrorCheckResult {
+        
+        let optionalFieldArray = textField.superview?.subviews.filter({
+            let item = $0 as? SignUpTextField
+            guard let textField = item else {
+                return false
+            }
+            return true
+        }) as? [SignUpTextField]
+    
+        guard let fieldArray = optionalFieldArray else {
+            return ErrorResult()
+        }
+        
+        if fieldArray[1].text == fieldArray[2].text {
+            return ErrorResult.init(isError: false, message: ErrorMessage.pw2IsOk.rawValue)
+        } else {
+            return ErrorResult.init(isError: true, message: ErrorMessage.pw2Different.rawValue)
+        }
+        
+    }
+    
+    private func checkNameIsNil(with text: String) -> ErrorCheckResult {
+        return text == "" ? ErrorResult.init(isError: true, message: ErrorMessage.nameIsNil.rawValue) : ErrorResult.init(isError: false, message: "")
     }
 }
 
diff --git a/SignUp/SignUp/SignUpView/ErrorCheckResult.swift b/SignUp/SignUp/SignUpView/ErrorCheckResult.swift
new file mode 100644
index 0000000..08f45f2
--- /dev/null
+++ b/SignUp/SignUp/SignUpView/ErrorCheckResult.swift
@@ -0,0 +1,52 @@
+//
+//  ErrorCheckResult.swift
+//  SignUp
+//
+//  Created by 이다훈 on 2021/04/01.
+//
+
+import UIKit
+
+protocol ErrorCheckResult {
+    var isError : Bool? {get set}
+    var message : String {get set}
+    func errorColor () -> UIColor
+}
+
+class ErrorResult : ErrorCheckResult{
+    var isError: Bool?
+    var message: String
+    
+    init(isError : Bool?, message text : String ) {
+        self.isError = isError
+        self.message = text
+    }
+    
+    convenience init() {
+        self.init(isError: nil, message : "")
+    }
+    
+    func errorColor() -> UIColor {
+        guard let error = self.isError else{
+            return UIColor.black
+        }
+        return error ? UIColor.red : UIColor.green
+    }
+}
+
+enum ErrorMessage : String {
+    case idIsOk = "사용 가능한 아이디입니다."
+    case idIneligible =  "5~20자의 영문 소문자, 숫자와 특수기호(_,-)만 사용 가능합니다."
+    case idUsed = "이미 사용중인 아이디입니다."
+    case pwIsOk = "안전한 비밀번호입니다."
+    case pwNoNumber = "숫자를 최소 1자 이상 포함해주세요."
+    case pwNoSpecialCharacter = "특수문자를 최소 1자 이상 포함해주세요."
+    case pwNoUpperCase =  "영문 대문자를 최소 1자 이상 포함해주세요."
+    case pwOutOfIndex =  "8자 이상 16자 이하로 입력해주세요."
+    case pw2IsOk = "비밀번호가 일치합니다."
+    case pw2Different = "비밀번호가 일치하지 않습니다."
+    case nameIsNil = "이름은 필수 입력 항목입니다."
+}
+
+
+
diff --git a/SignUp/SignUp/SignUpView/NetworkManager.swift b/SignUp/SignUp/SignUpView/NetworkManager.swift
index 4da1588..34708c7 100644
--- a/SignUp/SignUp/SignUpView/NetworkManager.swift
+++ b/SignUp/SignUp/SignUpView/NetworkManager.swift
@@ -7,6 +7,8 @@
 
 import Foundation
 class NetworkManager {
+    static var shared = NetworkManager()
+    
     private let url = URL.init(string: "https://8r6ruzgzve.execute-api.ap-northeast-2.amazonaws.com/default/SwiftCamp")
     
     func getUserList(closure : @escaping ([String]?) -> Void) {
@@ -16,34 +18,48 @@ class NetworkManager {
         var request = URLRequest(url: url)
         request.httpMethod = "GET"
         URLSession.shared.dataTask(with: request, completionHandler: {(data,response,error) in
-            guard let data = data else {
-                return
-            }
-            let decoder = try? JSONSerialization.jsonObject(with: data, options: []) as? Array<String>
-            guard let userList = decoder?.compactMap({$0}) else { return }
+            
+            let userList = self.serialize(data: data)
             
             closure(userList)
         }).resume()
     }
     
-    func postUser(userInfo : UserInformation) {
+    func serialize(data : Data?) -> Array<String> {
+        guard let data = data else {
+            return [String]()
+        }
+        let decoder = try? JSONSerialization.jsonObject(with: data, options: []) as? Array<String>
+        guard let userList = decoder?.compactMap({$0}) else {
+            return [String]()
+            
+        }
+        return userList
+    }
+    
+    func postUser<T:Codable> (input : T, closure : @escaping (Result<T,Error>) -> Void) {
+        
         guard let url = self.url else {
             return
         }
-        let sendData = try? JSONEncoder().encode(userInfo)
+        
+        let sendData = try? JSONEncoder().encode(input)
         var request = URLRequest(url: url)
         request.httpMethod = "POST"
         request.httpBody = sendData
         
         URLSession.shared.dataTask(with: request, completionHandler: {(data,response,error) in
+            
             guard let data = data else {
-                return
+                return closure(.failure(error!))
             }
-            let decoder = try? JSONDecoder().decode(NetworkResponse.self, from: data)
+            
+            let decoder = try? JSONDecoder().decode(T.self, from: data)
             guard let returnData = decoder else {
-                return
+                return closure(.failure(error!))
             }
-            // 필요한 내용 하단에 구현
+            
+            closure(.success(returnData))
         }).resume()
     }
 }
diff --git a/SignUp/SignUp/SignUpView/SignUpViewController.swift b/SignUp/SignUp/SignUpView/SignUpViewController.swift
index 1388f11..ea7f3e7 100644
--- a/SignUp/SignUp/SignUpView/SignUpViewController.swift
+++ b/SignUp/SignUp/SignUpView/SignUpViewController.swift
@@ -10,176 +10,52 @@ import UIKit
 class SignUpViewController: UIViewController {
 
     @IBOutlet var categoryLabelCollection: [UILabel]!
-    @IBOutlet var textFieldCollection: [UITextField]!
+    @IBOutlet var textFieldCollection: [SignUpTextField]!
     @IBOutlet var informationLabelCollection: [UILabel]!
+    @IBOutlet weak var nextButton: UIButton!
     
     private let textFieldDelegate = TextFieldDelegate()
-    private let complianceChecker = ComplianceChecker()
     
     override func viewDidLoad() {
         super.viewDidLoad()
-        configureCategorylabel()
         configureTextField()
-        configureInformationLabel()
         configureObserver()
     }
-
-    private func configureCategorylabel() {
-        for label in categoryLabelCollection {
-            label.font = .boldSystemFont(ofSize: 17)
-        }
-    }
     
     private func configureTextField() {
-        for textfield in textFieldCollection {
-            textfield.borderStyle = .line
-            textfield.delegate = textFieldDelegate
+        for index in 0..<textFieldCollection.count {
+            textFieldCollection[index].textFieldType = TextFieldType(rawValue: index)
+            textFieldCollection[index].delegate = textFieldDelegate
+            textFieldCollection[index].relatedLabel = informationLabelCollection[index]
         }
     }
     
-    private func configureInformationLabel() {
-        for label in informationLabelCollection {
-            label.font = .systemFont(ofSize: 12)
-            label.isHidden = true
-            label.adjustsFontSizeToFitWidth = true
-        }
-    }
-
     private func configureObserver() {
-        NotificationCenter.default.addObserver(self, selector: #selector(idTextFieldEdited(_:)), name: .idTextField, object: nil)
-        NotificationCenter.default.addObserver(self, selector: #selector(pwTextFieldEdited(_:)), name: .pwTextField, object: nil)
-        NotificationCenter.default.addObserver(self, selector: #selector(pw2TextFieldEdited(_:)), name: .pw2TextField, object: nil)
-        NotificationCenter.default.addObserver(self, selector: #selector(nameTextFieldEdited(_:)), name: .nameTextField, object: nil)
-    }
-    
-    @objc private func idTextFieldEdited(_ notification : Notification) {
-        let textField = notification.object as! UITextField
-        guard let text = textField.text else {
-            return
-        }
         
-        guard let label = informationLabelCollection.first(where: { label in
-            label.accessibilityIdentifier ?? "" == "IDInformation"
-        })  else {
-            return
-        }
-        
-        complianceChecker.checkIdTextForm(with: text, closure : { usedCheck in
-            DispatchQueue.main.async {
-                label.isHidden = false
-                switch usedCheck {
-                case .ok:
-                    textField.changeBorderColor(color: UIColor.green.cgColor)
-                    label.changeTextNColor(color: UIColor.green, text: "사용 가능한 아이디입니다.")
-                case .used:
-                    textField.changeBorderColor(color: UIColor.red.cgColor)
-                    label.changeTextNColor(color: UIColor.red, text: "이미 사용중인 아이디입니다.")
-                case .wrong:
-                    textField.changeBorderColor(color: UIColor.red.cgColor)
-                    label.changeTextNColor(color: UIColor.red, text: "5~20자의 영문 소문자, 숫자와 특수기호(_,-)만 사용 가능합니다.")
-                case .none:
-                    return
-                }
-            }
-            })
+        NotificationCenter.default.addObserver(self, selector: #selector(changeRelatedUI(noti:)), name: .uiUpdate, object: nil)
+        NotificationCenter.default.addObserver(self, selector: #selector(buttonEnableCheck(noti:)), name: .nextButtonEnableCheck, object: textFieldDelegate)
     }
     
-    @objc private func pwTextFieldEdited(_ notification : Notification) {
-        let textField = notification.object as! UITextField
-        guard let text = textField.text else {
-            return
-        }
-        
-        guard let label = informationLabelCollection.first(where: { label in
-            label.accessibilityIdentifier ?? "" == "PWInformation"
-        })  else {
-            return
-        }
-        
-        label.isHidden = false
-        
-        switch complianceChecker.checkPwTextForm(with: text) {
-        case .ok:
-            textField.changeBorderColor(color: UIColor.green.cgColor)
-            label.changeTextNColor(color: UIColor.green, text: "안전한 비밀번호입니다.")
-            
-        case .outOfIndex:
-            textField.changeBorderColor(color: UIColor.red.cgColor)
-            label.changeTextNColor(color: UIColor.red, text: "8자 이상 16자 이하로 입력해주세요.")
-            
-        case .noUpperCase:
-            textField.changeBorderColor(color: UIColor.red.cgColor)
-            label.changeTextNColor(color: UIColor.red, text: "영문 대문자를 최소 1자 이상 포함해주세요.")
-        
-        case .noNumber:
-            textField.changeBorderColor(color: UIColor.red.cgColor)
-            label.changeTextNColor(color: UIColor.red, text: "숫자를 최소 1자 이상 포함해주세요.")
-        
-        case .noSpecialCharacter:
-            textField.changeBorderColor(color: UIColor.red.cgColor)
-            label.changeTextNColor(color: UIColor.red, text: "특수문자를 최소 1자 이상 포함해주세요.")
-        }
-        
+    @IBAction func nextButtonTouched(_ sender: Any) {
+        //nextView
     }
     
-    @objc private func pw2TextFieldEdited(_ notification : Notification) {
-        let textField = notification.object as! UITextField
-        guard let text = textField.text else {
-            return
-        }
-        
-        guard let pwTextField = textFieldCollection.first(where: {textField in
-            textField.accessibilityIdentifier ?? "" == "PWTextField"
-        }) else {
-            return
-        }
-        
-        guard let label = informationLabelCollection.first(where: { label in
-            label.accessibilityIdentifier ?? "" == "PW2Information"
-        })  else {
+    @objc func buttonEnableCheck(noti : Notification) {
+        guard let buttonEnable = noti.userInfo?["enable"] as? Bool else {
             return
         }
+        nextButton.isEnabled = buttonEnable
         
-        let pwCoincidenceCheck : CoincidenceError = text == pwTextField.text ? .ok : .wrong
-        
-        label.isHidden = false
-        
-        switch pwCoincidenceCheck {
-        case .ok:
-            textField.changeBorderColor(color: UIColor.green.cgColor)
-            label.changeTextNColor(color: UIColor.green, text: "비밀번호가 일치합니다.")
-        case .wrong:
-            textField.changeBorderColor(color: UIColor.red.cgColor)
-            label.changeTextNColor(color: UIColor.red, text: "비밀번호가 일치하지 않습니다..")
-        }
     }
     
-    @objc private func nameTextFieldEdited(_ notification : Notification) {
-        let textField = notification.object as! UITextField
-        guard let text = textField.text else {
+    @objc func changeRelatedUI(noti : Notification) {
+        guard let textField = noti.object as? SignUpTextField else {
             return
         }
-        let nameTextNilCheck : CoincidenceError = text == "" ? .wrong : .ok
-        
-        guard let label = informationLabelCollection.first(where: { label in
-            label.accessibilityIdentifier ?? "" == "NameInformation"
-        })  else {
+        guard let result = noti.userInfo?["result"] as? ErrorResult else {
             return
         }
-        
-        switch nameTextNilCheck {
-        case .ok:
-            label.isHidden = true
-            textField.changeBorderColor(color: UIColor.black.cgColor)
-        case .wrong:
-            label.isHidden = false
-            textField.changeBorderColor(color: UIColor.red.cgColor)
-            label.changeTextNColor(color: UIColor.red, text: "이름은 필수 입력 항목입니다.")
-        }
-    }
-    
-    @IBAction func nextButtonTouched(_ sender: Any) {
-        //nextView
+        textField.changeStyle(with: result)
     }
 }
 
diff --git a/SignUp/SignUp/SignUpView/TextFieldDelegate.swift b/SignUp/SignUp/SignUpView/TextFieldDelegate.swift
index aec618e..dd10fc4 100644
--- a/SignUp/SignUp/SignUpView/TextFieldDelegate.swift
+++ b/SignUp/SignUp/SignUpView/TextFieldDelegate.swift
@@ -9,35 +9,43 @@ import UIKit
 
 class TextFieldDelegate: NSObject, UITextFieldDelegate {
     
-    func textFieldDidEndEditing(_ textField: UITextField) {
-        switch textField.accessibilityIdentifier ?? "" {
-        case "PWTextField":
-            NotificationCenter.default.post(name: .pwTextField, object: textField)
-        case "PW2TextField":
-            NotificationCenter.default.post(name: .pw2TextField, object: textField)
-        case "IDTextField":
-            NotificationCenter.default.post(name: .idTextField, object: textField)
-        case "NameTextField":
-            NotificationCenter.default.post(name: .nameTextField, object: textField)
-        default:
+    let complianceChecker = ComplianceChecker()
+    
+    func textFieldDidChangeSelection(_ textField: UITextField) {
+        guard let textField = textField as? SignUpTextField else {
             return
         }
+        
+        let checkResult = complianceChecker.check(target: textField, closure: { errorChecker in
+            NotificationCenter.default.post(name: .uiUpdate, object: textField, userInfo: ["result":errorChecker])
+        })
+        
+        NotificationCenter.default.post(name: .uiUpdate, object: textField, userInfo: ["result":checkResult])
+        
+        return
     }
     
-    func textFieldShouldReturn(_ textField: UITextField) -> Bool {
-        let optionalFieldArray = textField.superview?.subviews.filter({
-            let item = $0 as? UITextField
-            guard let textField = item else {
+    private func findSameDimensionSignUpTextField(target : UIView) -> [SignUpTextField] {
+        
+        let optionalFieldArray = target.superview?.subviews.filter({
+            let item = $0 as? SignUpTextField
+            guard item != nil else {
                 return false
             }
             return true
         })
         
-        guard let fieldArray = optionalFieldArray else {
-            return true
+        guard let fieldArray = optionalFieldArray as? [SignUpTextField] else {
+            return [SignUpTextField]()
         }
         
-        let currentIndex = fieldArray.firstIndex(of: textField)!
+        return fieldArray
+    }
+    
+    func textFieldShouldReturn(_ textField: UITextField) -> Bool {
+        let fieldArray = findSameDimensionSignUpTextField(target: textField)
+        
+        let currentIndex = fieldArray.firstIndex(of: textField as! SignUpTextField)!
         if currentIndex == fieldArray.count - 1 {
             textField.endEditing(true)
         }
@@ -48,4 +56,25 @@ class TextFieldDelegate: NSObject, UITextFieldDelegate {
         
         return true
     }
+    
+    func textFieldDidEndEditing(_ textField: UITextField) {
+        let fieldArray = findSameDimensionSignUpTextField(target: textField)
+        
+        fieldArray.enumerated().forEach({
+            if $0.element.layer.borderColor != UIColor.green.cgColor {
+                // button disabled
+                NotificationCenter.default.post(name: .nextButtonEnableCheck, object: self, userInfo: ["enable":false])
+                return
+            }
+            
+            if $0.element.text == nil {
+                // button disabled
+                NotificationCenter.default.post(name: .nextButtonEnableCheck, object: self, userInfo: ["enable":false])
+                return
+            }
+            
+            //button enabled
+            NotificationCenter.default.post(name: .nextButtonEnableCheck, object: self, userInfo: ["enable":true])
+        })
+    }
 }
diff --git a/SignUp/SignUp/SignUpView/View/SignUpTextField.swift b/SignUp/SignUp/SignUpView/View/SignUpTextField.swift
new file mode 100644
index 0000000..61ebbe1
--- /dev/null
+++ b/SignUp/SignUp/SignUpView/View/SignUpTextField.swift
@@ -0,0 +1,45 @@
+//
+//  SignUpTextField.swift
+//  SignUp
+//
+//  Created by 이다훈 on 2021/04/01.
+//
+import Foundation
+import UIKit
+
+enum TextFieldType : Int {
+    case id
+    case pw
+    case pw2
+    case name
+}
+
+class SignUpTextField: UITextField {
+    var relatedLabel : UILabel?
+    var textFieldType : TextFieldType?
+    
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+        self.borderStyle = .line
+    }
+    
+    required init?(coder: NSCoder) {
+        super.init(coder: coder)
+        self.borderStyle = .line
+    }
+    
+    func changeStyle(with error : ErrorCheckResult ) {
+        guard let label = relatedLabel else {
+            return
+        }
+        
+        DispatchQueue.main.async {
+            let color = error.errorColor()
+            self.changeBorder(color: color.cgColor)
+            label.isHidden = false
+            label.textColor = color
+            label.text = error.message
+        }
+    }
+    
+}
diff --git a/SignUp/SignUp/SignUpView/textFormError.swift b/SignUp/SignUp/SignUpView/textFormError.swift
deleted file mode 100644
index 9405988..0000000
--- a/SignUp/SignUp/SignUpView/textFormError.swift
+++ /dev/null
@@ -1,28 +0,0 @@
-//
-//  inputErrorEnums.swift
-//  SignUp
-//
-//  Created by 이다훈 on 2021/03/29.
-//
-
-import Foundation
-
-enum IdTextFormError {
-    case ok
-    case used
-    case wrong
-    case none
-}
-
-enum PwTextFormError {
-    case ok
-    case outOfIndex
-    case noUpperCase
-    case noNumber
-    case noSpecialCharacter
-}
-
-enum CoincidenceError {
-    case ok
-    case wrong
-}