diff --git a/src/main/java/com/loafle/overflow/central/module/apikey/service/CentralApiKeyService.java b/src/main/java/com/loafle/overflow/central/module/apikey/service/CentralApiKeyService.java
index a191f12..897fa1d 100644
--- a/src/main/java/com/loafle/overflow/central/module/apikey/service/CentralApiKeyService.java
+++ b/src/main/java/com/loafle/overflow/central/module/apikey/service/CentralApiKeyService.java
@@ -1,9 +1,10 @@
 package com.loafle.overflow.central.module.apikey.service;
 
-import com.loafle.overflow.central.commons.exception.OverflowException;
+
 import com.loafle.overflow.central.module.apikey.dao.ApiKeyDAO;
 
 
+import com.loafle.overflow.core.exception.OverflowException;
 import com.loafle.overflow.model.apikey.ApiKey;
 import com.loafle.overflow.model.domain.Domain;
 import com.loafle.overflow.service.central.apikey.ApiKeyService;
diff --git a/src/main/java/com/loafle/overflow/central/module/discovery/model/DiscoveryStartInfo.java b/src/main/java/com/loafle/overflow/central/module/discovery/model/DiscoveryStartInfo.java
deleted file mode 100644
index 27e0796..0000000
--- a/src/main/java/com/loafle/overflow/central/module/discovery/model/DiscoveryStartInfo.java
+++ /dev/null
@@ -1,63 +0,0 @@
-package com.loafle.overflow.central.module.discovery.model;
-
-import java.util.List;
-
-/**
- * Created by snoop on 17. 9. 29.
- */
-public class DiscoveryStartInfo {
-    String startIp;
-    String endIP;
-    String excludeIp;
-    String startPort;
-    String endPort;
-    List<String> services;
-
-    public String getStartIp() {
-        return startIp;
-    }
-
-    public void setStartIp(String startIp) {
-        this.startIp = startIp;
-    }
-
-    public String getEndIP() {
-        return endIP;
-    }
-
-    public void setEndIP(String endIP) {
-        this.endIP = endIP;
-    }
-
-    public String getExcludeIp() {
-        return excludeIp;
-    }
-
-    public void setExcludeIp(String excludeIp) {
-        this.excludeIp = excludeIp;
-    }
-
-    public String getStartPort() {
-        return startPort;
-    }
-
-    public void setStartPort(String startPort) {
-        this.startPort = startPort;
-    }
-
-    public String getEndPort() {
-        return endPort;
-    }
-
-    public void setEndPort(String endPort) {
-        this.endPort = endPort;
-    }
-
-    public List<String> getServices() {
-        return services;
-    }
-
-    public void setServices(List<String> services) {
-        this.services = services;
-    }
-}
diff --git a/src/main/java/com/loafle/overflow/central/module/discovery/service/CentralDiscoveryService.java b/src/main/java/com/loafle/overflow/central/module/discovery/service/CentralDiscoveryService.java
index 863d81e..2214e14 100644
--- a/src/main/java/com/loafle/overflow/central/module/discovery/service/CentralDiscoveryService.java
+++ b/src/main/java/com/loafle/overflow/central/module/discovery/service/CentralDiscoveryService.java
@@ -4,7 +4,7 @@ package com.loafle.overflow.central.module.discovery.service;
 
 import com.loafle.overflow.central.commons.model.SessionMetadata;
 import com.loafle.overflow.central.commons.service.MessagePublisher;
-import com.loafle.overflow.central.module.discovery.model.DiscoveryStartInfo;
+
 import com.loafle.overflow.core.annotation.ProbeAPI;
 import com.loafle.overflow.core.annotation.WebappAPI;
 import com.loafle.overflow.core.exception.OverflowException;
diff --git a/src/main/java/com/loafle/overflow/central/module/discovery/type/PortType.java b/src/main/java/com/loafle/overflow/central/module/discovery/type/PortType.java
deleted file mode 100644
index 67fe74f..0000000
--- a/src/main/java/com/loafle/overflow/central/module/discovery/type/PortType.java
+++ /dev/null
@@ -1,18 +0,0 @@
-package com.loafle.overflow.central.module.discovery.type;
-
-/**
- * Created by snoop on 17. 6. 27.
- */
-public enum PortType {
-    TCP("TCP"),
-    UDP("UDP"),
-    TLS("TLS");
-
-    private String stringValue;
-    PortType(String string) {stringValue = string;}
-
-    @Override
-    public String toString() {
-        return stringValue;
-    }
-}
\ No newline at end of file
diff --git a/src/main/java/com/loafle/overflow/central/module/domain/dao/DomainMemberDAO.java b/src/main/java/com/loafle/overflow/central/module/domain/dao/DomainMemberDAO.java
index 8265f2a..eaae6b1 100644
--- a/src/main/java/com/loafle/overflow/central/module/domain/dao/DomainMemberDAO.java
+++ b/src/main/java/com/loafle/overflow/central/module/domain/dao/DomainMemberDAO.java
@@ -1,9 +1,10 @@
 package com.loafle.overflow.central.module.domain.dao;
 
 
-import com.loafle.overflow.central.module.member.model.Member;
+
 import com.loafle.overflow.model.domain.Domain;
 import com.loafle.overflow.model.domain.DomainMember;
+import com.loafle.overflow.model.member.Member;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;
diff --git a/src/main/java/com/loafle/overflow/central/module/domain/service/CentralDomainMemberService.java b/src/main/java/com/loafle/overflow/central/module/domain/service/CentralDomainMemberService.java
index 0abed4d..9c5a8a3 100644
--- a/src/main/java/com/loafle/overflow/central/module/domain/service/CentralDomainMemberService.java
+++ b/src/main/java/com/loafle/overflow/central/module/domain/service/CentralDomainMemberService.java
@@ -3,9 +3,10 @@ package com.loafle.overflow.central.module.domain.service;
 import com.loafle.overflow.central.module.domain.dao.DomainMemberDAO;
 
 import com.loafle.overflow.central.module.member.dao.MemberDAO;
-import com.loafle.overflow.central.module.member.model.Member;
+
 import com.loafle.overflow.model.domain.Domain;
 import com.loafle.overflow.model.domain.DomainMember;
+import com.loafle.overflow.model.member.Member;
 import com.loafle.overflow.service.central.domain.DomainMemberService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
diff --git a/src/main/java/com/loafle/overflow/central/module/email/dao/EmailAuthDAO.java b/src/main/java/com/loafle/overflow/central/module/email/dao/EmailAuthDAO.java
index a12fd40..3949908 100644
--- a/src/main/java/com/loafle/overflow/central/module/email/dao/EmailAuthDAO.java
+++ b/src/main/java/com/loafle/overflow/central/module/email/dao/EmailAuthDAO.java
@@ -1,7 +1,8 @@
 package com.loafle.overflow.central.module.email.dao;
 
-import com.loafle.overflow.central.module.email.model.EmailAuth;
-import com.loafle.overflow.central.module.member.model.Member;
+
+import com.loafle.overflow.model.email.EmailAuth;
+import com.loafle.overflow.model.member.Member;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
diff --git a/src/main/java/com/loafle/overflow/central/module/email/exception/EmailOverAuthException.java b/src/main/java/com/loafle/overflow/central/module/email/exception/EmailOverAuthException.java
deleted file mode 100644
index cf818bc..0000000
--- a/src/main/java/com/loafle/overflow/central/module/email/exception/EmailOverAuthException.java
+++ /dev/null
@@ -1,16 +0,0 @@
-package com.loafle.overflow.central.module.email.exception;
-
-import com.loafle.overflow.central.commons.exception.OverflowRuntimeException;
-
-/**
- * Created by geek on 17. 11. 22.
- */
-public class EmailOverAuthException extends OverflowRuntimeException {
-    public EmailOverAuthException() {
-        super();
-    }
-
-    public EmailOverAuthException(String message) {
-        super(message);
-    }
-}
diff --git a/src/main/java/com/loafle/overflow/central/module/email/model/EmailAuth.java b/src/main/java/com/loafle/overflow/central/module/email/model/EmailAuth.java
deleted file mode 100644
index 3f764b6..0000000
--- a/src/main/java/com/loafle/overflow/central/module/email/model/EmailAuth.java
+++ /dev/null
@@ -1,69 +0,0 @@
-package com.loafle.overflow.central.module.email.model;
-
-import com.loafle.overflow.central.module.member.model.Member;
-
-import javax.persistence.*;
-import java.util.Date;
-
-/**
- * Created by root on 17. 6. 22.
- */
-@Entity
-@Table(name = "EMAIL_AUTH", schema = "public")
-public class EmailAuth {
-    private long id;
-    private String emailAuthKey;
-    private Date createDate;
-    private Date authConfirmDate;
-    private Member member;
-
-    @Id
-    @GeneratedValue(strategy= GenerationType.IDENTITY)
-    public long getId() {
-        return id;
-    }
-
-    public void setId(long id) {
-        this.id = id;
-    }
-
-    @Basic
-    @Column(name = "EMAIL_AUTH_KEY", nullable = true, length = 50)
-    public String getEmailAuthKey() {
-        return emailAuthKey;
-    }
-
-    public void setEmailAuthKey(String emailAuthKey) {
-        this.emailAuthKey = emailAuthKey;
-    }
-
-    @Basic
-    @Column(name = "CREATE_DATE", nullable = false, columnDefinition = "TIMESTAMP DEFAULT CURRENT_TIMESTAMP", insertable = false, updatable = false)
-    public Date getCreateDate() {
-        return createDate;
-    }
-
-    public void setCreateDate(Date createDate) {
-        this.createDate = createDate;
-    }
-
-    @Basic
-    @Column(name = "AUTH_CONFIRM_DATE", nullable = true,  insertable = true, updatable = true)
-    public Date getAuthConfirmDate() {
-        return authConfirmDate;
-    }
-
-    public void setAuthConfirmDate(Date authConfirmDate) {
-        this.authConfirmDate = authConfirmDate;
-    }
-
-    @ManyToOne
-    @JoinColumn(name = "MEMBER_ID", nullable = false)
-    public Member getMember() {
-        return member;
-    }
-
-    public void setMember(Member member) {
-        this.member = member;
-    }
-}
diff --git a/src/main/java/com/loafle/overflow/central/module/email/service/EmailAuthService.java b/src/main/java/com/loafle/overflow/central/module/email/service/CentralEmailAuthService.java
similarity index 87%
rename from src/main/java/com/loafle/overflow/central/module/email/service/EmailAuthService.java
rename to src/main/java/com/loafle/overflow/central/module/email/service/CentralEmailAuthService.java
index 51ecb1f..c07e622 100644
--- a/src/main/java/com/loafle/overflow/central/module/email/service/EmailAuthService.java
+++ b/src/main/java/com/loafle/overflow/central/module/email/service/CentralEmailAuthService.java
@@ -1,17 +1,19 @@
 package com.loafle.overflow.central.module.email.service;
 
-import com.loafle.overflow.central.commons.model.Mail;
+
 import com.loafle.overflow.central.commons.utils.EmailSender;
 import com.loafle.overflow.central.module.domain.dao.DomainDAO;
 import com.loafle.overflow.central.module.domain.dao.DomainMemberDAO;
-import com.loafle.overflow.central.module.domain.model.Domain;
-import com.loafle.overflow.central.module.domain.model.DomainMember;
 import com.loafle.overflow.central.module.email.dao.EmailAuthDAO;
-import com.loafle.overflow.central.module.email.exception.EmailOverAuthException;
-import com.loafle.overflow.central.module.email.model.EmailAuth;
+
 import com.loafle.overflow.central.module.member.dao.MemberDAO;
-import com.loafle.overflow.central.module.member.model.Member;
-import com.loafle.overflow.central.module.meta.model.MetaMemberStatus;
+import com.loafle.overflow.core.exception.OverflowException;
+import com.loafle.overflow.core.model.Mail;
+import com.loafle.overflow.model.domain.Domain;
+import com.loafle.overflow.model.domain.DomainMember;
+import com.loafle.overflow.model.email.EmailAuth;
+import com.loafle.overflow.model.member.Member;
+import com.loafle.overflow.model.meta.MetaMemberStatus;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.mail.MailException;
 import org.springframework.stereotype.Service;
@@ -25,7 +27,7 @@ import java.util.*;
  * Created by geek on 17. 6. 28.
  */
 @Service("EmailAuthService")
-public class EmailAuthService {
+public class CentralEmailAuthService {
 
     @Autowired
     private EmailAuthDAO emailAuthDAO;
@@ -77,7 +79,7 @@ public class EmailAuthService {
         return this.emailAuthDAO.findOne(id);
     }
 
-    public EmailAuth readByAuthKey(String authKey) throws UnsupportedEncodingException {
+    public EmailAuth readByAuthKey(String authKey) throws OverflowException, UnsupportedEncodingException {
         System.out.println("authKey = [" + authKey + "]");
         String deStr = URLDecoder.decode(authKey, "UTF-8");
         System.out.println("deStr = [" + deStr + "]");
@@ -98,7 +100,7 @@ public class EmailAuthService {
             Date nowDate = new Date();
 
             if (!nowDate.before(futureDate)) {
-                throw new EmailOverAuthException("The authentication expiration time has passed.");
+                throw new OverflowException("The authentication expiration time has passed.", new Throwable());
             }
 
             auth.setAuthConfirmDate(new Date());
diff --git a/src/test/java/com/loafle/overflow/central/module/apikey/service/ApiKeyServiceTest.java b/src/test/java/com/loafle/overflow/central/module/apikey/service/ApiKeyServiceTest.java
index 36cbc88..5428f6c 100644
--- a/src/test/java/com/loafle/overflow/central/module/apikey/service/ApiKeyServiceTest.java
+++ b/src/test/java/com/loafle/overflow/central/module/apikey/service/ApiKeyServiceTest.java
@@ -1,9 +1,12 @@
 package com.loafle.overflow.central.module.apikey.service;
 
 import com.google.protobuf.Api;
-import com.loafle.overflow.central.module.apikey.model.ApiKey;
-import com.loafle.overflow.central.module.domain.model.Domain;
+
 import com.loafle.overflow.central.spring.AppConfigTest;
+import com.loafle.overflow.core.exception.OverflowException;
+import com.loafle.overflow.model.apikey.ApiKey;
+import com.loafle.overflow.model.domain.Domain;
+import com.loafle.overflow.service.central.apikey.ApiKeyService;
 import org.junit.Assert;
 import org.junit.Ignore;
 import org.junit.Test;
@@ -58,7 +61,7 @@ public class ApiKeyServiceTest {
 
     @Ignore
     @Test
-    public void findByDomain() {
+    public void findByDomain() throws OverflowException {
 
         Domain domain = new Domain();
         domain.setId(1);
@@ -70,7 +73,7 @@ public class ApiKeyServiceTest {
     }
 
     @Test
-    public void readByApiKey() {
+    public void readByApiKey() throws OverflowException {
 
         ApiKey apiKey = this.apiKeyService.readByApiKey("52abd6fd57e511e7ac52080027658d13");
 
diff --git a/src/test/java/com/loafle/overflow/central/module/auth/service/AuthCrawlerServiceTest.java b/src/test/java/com/loafle/overflow/central/module/auth/service/AuthCrawlerServiceTest.java
index 0a4919e..ad5155f 100644
--- a/src/test/java/com/loafle/overflow/central/module/auth/service/AuthCrawlerServiceTest.java
+++ b/src/test/java/com/loafle/overflow/central/module/auth/service/AuthCrawlerServiceTest.java
@@ -1,9 +1,10 @@
 package com.loafle.overflow.central.module.auth.service;
 
-import com.loafle.overflow.central.module.auth.model.AuthCrawler;
-import com.loafle.overflow.central.module.meta.model.MetaCrawler;
-import com.loafle.overflow.central.module.target.model.Target;
 import com.loafle.overflow.central.spring.AppConfigTest;
+import com.loafle.overflow.core.exception.OverflowException;
+import com.loafle.overflow.model.auth.AuthCrawler;
+import com.loafle.overflow.model.meta.MetaCrawler;
+import com.loafle.overflow.model.target.Target;
 import org.junit.Assert;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -19,7 +20,7 @@ import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 public class AuthCrawlerServiceTest {
 
     @Autowired
-    private AuthCrawlerService authCrawlerService;
+    private CentralAuthCrawlerService authCrawlerService;
 
     @Test
     public void regist() throws Exception {
@@ -47,7 +48,7 @@ public class AuthCrawlerServiceTest {
     }
 
     @Test
-    public void findAuth() {
+    public void findAuth() throws OverflowException {
 
         MetaCrawler metaCrawler = new MetaCrawler();
         metaCrawler.setId((short)23);
diff --git a/src/test/java/com/loafle/overflow/central/module/domain/service/DomainMemberServiceTest.java b/src/test/java/com/loafle/overflow/central/module/domain/service/DomainMemberServiceTest.java
index fdfc54d..fd7c116 100644
--- a/src/test/java/com/loafle/overflow/central/module/domain/service/DomainMemberServiceTest.java
+++ b/src/test/java/com/loafle/overflow/central/module/domain/service/DomainMemberServiceTest.java
@@ -1,9 +1,12 @@
 package com.loafle.overflow.central.module.domain.service;
 
-import com.loafle.overflow.central.module.domain.model.Domain;
-import com.loafle.overflow.central.module.domain.model.DomainMember;
-import com.loafle.overflow.central.module.member.model.Member;
+
 import com.loafle.overflow.central.spring.AppConfigTest;
+import com.loafle.overflow.core.exception.OverflowException;
+import com.loafle.overflow.model.domain.Domain;
+import com.loafle.overflow.model.domain.DomainMember;
+import com.loafle.overflow.model.member.Member;
+import com.loafle.overflow.service.central.domain.DomainMemberService;
 import org.junit.Assert;
 import org.junit.Ignore;
 import org.junit.Test;
@@ -48,7 +51,7 @@ public class DomainMemberServiceTest {
     }
 
     @Test
-    public void readAllMemberByDomain() {
+    public void readAllMemberByDomain() throws OverflowException {
 
         Domain domain = new Domain();
         domain.setId(1);
diff --git a/src/test/java/com/loafle/overflow/central/module/domain/service/DomainServiceTest.java b/src/test/java/com/loafle/overflow/central/module/domain/service/DomainServiceTest.java
index f15944e..3280996 100644
--- a/src/test/java/com/loafle/overflow/central/module/domain/service/DomainServiceTest.java
+++ b/src/test/java/com/loafle/overflow/central/module/domain/service/DomainServiceTest.java
@@ -1,7 +1,8 @@
 package com.loafle.overflow.central.module.domain.service;
 
-import com.loafle.overflow.central.module.domain.model.Domain;
+
 import com.loafle.overflow.central.spring.AppConfigTest;
+import com.loafle.overflow.model.domain.Domain;
 import org.junit.Assert;
 import org.junit.Ignore;
 import org.junit.Test;
@@ -20,7 +21,7 @@ import static org.junit.Assert.*;
 public class DomainServiceTest {
 
     @Autowired
-    private DomainService domainService;
+    private CentralDomainService domainService;
 
     @Ignore
     @Test
diff --git a/src/test/java/com/loafle/overflow/central/module/email/service/EmailAuthServiceTest.java b/src/test/java/com/loafle/overflow/central/module/email/service/EmailAuthServiceTest.java
index 2e8561c..0a16dfd 100644
--- a/src/test/java/com/loafle/overflow/central/module/email/service/EmailAuthServiceTest.java
+++ b/src/test/java/com/loafle/overflow/central/module/email/service/EmailAuthServiceTest.java
@@ -1,7 +1,8 @@
 package com.loafle.overflow.central.module.email.service;
 
-import com.loafle.overflow.central.module.email.model.EmailAuth;
+
 import com.loafle.overflow.central.spring.AppConfigTest;
+import com.loafle.overflow.model.email.EmailAuth;
 import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -22,7 +23,7 @@ import java.util.Date;
 public class EmailAuthServiceTest {
 
     @Autowired
-    EmailAuthService emailAuthService;
+    CentralEmailAuthService emailAuthService;
 
     @Test
     @Ignore