diff --git a/application-test/app-test/pom.xml b/application-test/app-test/pom.xml
index 2707b0b5..3b1eb24f 100644
--- a/application-test/app-test/pom.xml
+++ b/application-test/app-test/pom.xml
@@ -21,6 +21,22 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+        </dependency>
 
         <dependency>
             <groupId>org.springframework.boot</groupId>
diff --git a/application-test/app-test/src/main/java/com/example/apptest/Study.java b/application-test/app-test/src/main/java/com/example/apptest/Study.java
deleted file mode 100644
index 73b643cb..00000000
--- a/application-test/app-test/src/main/java/com/example/apptest/Study.java
+++ /dev/null
@@ -1,46 +0,0 @@
-package com.example.apptest;
-
-public class Study {
-
-    private StudyStatus status;
-
-    private int limit;
-
-    private String name;
-
-    public Study(int limit, String name) {
-        this.limit = limit;
-        this.name = name;
-    }
-
-    public Study() {
-    }
-
-    public Study(int limit) {
-        if (limit <= 0) {
-            throw new IllegalArgumentException("limit은 0보다 커야 한다.");
-        }
-        this.limit = limit;
-    }
-
-    public StudyStatus getStatus() {
-        return this.status;
-    }
-
-    public int getLimit() {
-        return limit;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    @Override
-    public String toString() {
-        return "Study{" +
-                "status=" + status +
-                ", limit=" + limit +
-                ", name='" + name + '\'' +
-                '}';
-    }
-}
diff --git a/application-test/app-test/src/main/java/com/example/apptest/StudyStatus.java b/application-test/app-test/src/main/java/com/example/apptest/StudyStatus.java
deleted file mode 100644
index 48af3e3d..00000000
--- a/application-test/app-test/src/main/java/com/example/apptest/StudyStatus.java
+++ /dev/null
@@ -1,5 +0,0 @@
-package com.example.apptest;
-
-public enum StudyStatus {
-    DRAFT, STARTED, ENDED
-}
diff --git a/application-test/app-test/src/main/java/com/example/apptest/domain/Member.java b/application-test/app-test/src/main/java/com/example/apptest/domain/Member.java
new file mode 100644
index 00000000..507c538b
--- /dev/null
+++ b/application-test/app-test/src/main/java/com/example/apptest/domain/Member.java
@@ -0,0 +1,21 @@
+package com.example.apptest.domain;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+
+@Entity
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class Member {
+
+    @Id @GeneratedValue
+    private Long id;
+
+    private String email;
+}
diff --git a/application-test/app-test/src/main/java/com/example/apptest/domain/Study.java b/application-test/app-test/src/main/java/com/example/apptest/domain/Study.java
new file mode 100644
index 00000000..8984f0bb
--- /dev/null
+++ b/application-test/app-test/src/main/java/com/example/apptest/domain/Study.java
@@ -0,0 +1,47 @@
+package com.example.apptest.domain;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import java.time.LocalDateTime;
+
+@Entity
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class Study {
+
+    @Id @GeneratedValue
+    private Long id;
+
+    private StudyStatus status = StudyStatus.DRAFT;
+
+    private int limit;
+
+    private String name;
+
+    private LocalDateTime openedDateTime;
+
+    private Long ownerId;
+
+    public Study(int limit, String name) {
+        this.limit = limit;
+        this.name = name;
+    }
+
+    public Study(int limit) {
+        if (limit <= 0) {
+            throw new IllegalArgumentException("limit은 0보다 커야 한다.");
+        }
+        this.limit = limit;
+    }
+
+    public void open() {
+        this.openedDateTime = LocalDateTime.now();
+        this.status = StudyStatus.OPENED;
+    }
+}
diff --git a/application-test/app-test/src/main/java/com/example/apptest/domain/StudyStatus.java b/application-test/app-test/src/main/java/com/example/apptest/domain/StudyStatus.java
new file mode 100644
index 00000000..c4a6aca1
--- /dev/null
+++ b/application-test/app-test/src/main/java/com/example/apptest/domain/StudyStatus.java
@@ -0,0 +1,5 @@
+package com.example.apptest.domain;
+
+public enum StudyStatus {
+    DRAFT, STARTED, ENDED, OPENED
+}
diff --git a/application-test/app-test/src/main/java/com/example/apptest/member/MemberService.java b/application-test/app-test/src/main/java/com/example/apptest/member/MemberService.java
new file mode 100644
index 00000000..5ab57aa0
--- /dev/null
+++ b/application-test/app-test/src/main/java/com/example/apptest/member/MemberService.java
@@ -0,0 +1,10 @@
+package com.example.apptest.member;
+
+import com.example.apptest.domain.Member;
+
+import java.util.Optional;
+
+public interface MemberService {
+
+    Optional<Member> findById(Long memberId);
+}
diff --git a/application-test/app-test/src/main/java/com/example/apptest/study/StudyRepository.java b/application-test/app-test/src/main/java/com/example/apptest/study/StudyRepository.java
new file mode 100644
index 00000000..94d09e4d
--- /dev/null
+++ b/application-test/app-test/src/main/java/com/example/apptest/study/StudyRepository.java
@@ -0,0 +1,9 @@
+package com.example.apptest.study;
+
+import com.example.apptest.domain.Study;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface StudyRepository extends JpaRepository<Study, Long> {
+}
diff --git a/application-test/app-test/src/main/java/com/example/apptest/study/StudyService.java b/application-test/app-test/src/main/java/com/example/apptest/study/StudyService.java
new file mode 100644
index 00000000..b4face39
--- /dev/null
+++ b/application-test/app-test/src/main/java/com/example/apptest/study/StudyService.java
@@ -0,0 +1,25 @@
+package com.example.apptest.study;
+
+import com.example.apptest.domain.Member;
+import com.example.apptest.domain.Study;
+import com.example.apptest.member.MemberService;
+
+public class StudyService {
+
+    private final MemberService memberService;
+    private final StudyRepository studyRepository;
+
+    public StudyService(MemberService memberService, StudyRepository studyRepository) {
+        assert memberService != null;
+        assert studyRepository != null;
+        this.memberService = memberService;
+        this.studyRepository = studyRepository;
+    }
+
+    public Study createNewStudy(Long memberId, Study study) {
+        Member member = memberService.findById(memberId)
+                .orElseThrow(() -> new IllegalArgumentException("Member doesn't exist for id: " + memberId));
+        study.setOwnerId(memberId);
+        return studyRepository.save(study);
+    }
+}
diff --git a/application-test/app-test/src/main/resources/application.properties b/application-test/app-test/src/main/resources/application.properties
deleted file mode 100644
index 8b137891..00000000
--- a/application-test/app-test/src/main/resources/application.properties
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/application-test/app-test/src/main/resources/application.yml b/application-test/app-test/src/main/resources/application.yml
new file mode 100644
index 00000000..53372abf
--- /dev/null
+++ b/application-test/app-test/src/main/resources/application.yml
@@ -0,0 +1,21 @@
+spring:
+  h2:
+    console:
+      enabled: true
+      path: /h2-console
+
+  datasource:
+    url: jdbc:h2:mem:testDb
+    driver-class-name: org.h2.Driver
+    username: sa
+    password:
+
+  jpa:
+    hibernate:
+      ddl-auto: create
+    generate-ddl: true
+
+    properties:
+      format_sql: true
+      hibernate:
+        show-sql: true
diff --git a/application-test/app-test/src/test/java/com/example/apptest/study/StudyServiceTest.java b/application-test/app-test/src/test/java/com/example/apptest/study/StudyServiceTest.java
new file mode 100644
index 00000000..e5a8cc30
--- /dev/null
+++ b/application-test/app-test/src/test/java/com/example/apptest/study/StudyServiceTest.java
@@ -0,0 +1,19 @@
+package com.example.apptest.study;
+
+import com.example.apptest.member.MemberService;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class StudyServiceTest {
+
+    @Test
+    void createStudyService() {
+
+        MemberService memberService = Mockito.mock(MemberService.class);
+        StudyRepository studyRepository = Mockito.mock(StudyRepository.class);
+        StudyService studyService = new StudyService(memberService, studyRepository);
+    }
+
+}
\ No newline at end of file