diff --git a/src/main/java/com/loafle/overflow/module/infra/Infra.java b/src/main/java/com/loafle/overflow/module/infra/Infra.java
index c9021d3..c85fce8 100644
--- a/src/main/java/com/loafle/overflow/module/infra/Infra.java
+++ b/src/main/java/com/loafle/overflow/module/infra/Infra.java
@@ -1,5 +1,7 @@
 package com.loafle.overflow.module.infra;
 
+import com.loafle.overflow.meta.MetaInfraType;
+
 import javax.persistence.*;
 import java.sql.Timestamp;
 
@@ -10,12 +12,12 @@ import java.sql.Timestamp;
 @Table(name = "TBL_INFRA", schema = "public", catalog = "postgres")
 public class Infra {
     private long id;
-    private int typeId;
+    private MetaInfraType type;
     private long childId;
     private Timestamp createDate;
 
     @Id
-    @Column(name = "ID", nullable = false)
+    @GeneratedValue(strategy= GenerationType.IDENTITY)
     public long getId() {
         return id;
     }
@@ -24,14 +26,14 @@ public class Infra {
         this.id = id;
     }
 
-    @Basic
-    @Column(name = "TYPE_ID", nullable = false)
-    public int getTypeId() {
-        return typeId;
+    @ManyToOne
+    @JoinColumn(name = "TYPE_ID", nullable = false)
+    public MetaInfraType getType() {
+        return type;
     }
 
-    public void setTypeId(int typeId) {
-        this.typeId = typeId;
+    public void setTypeId(MetaInfraType type) {
+        this.type = type;
     }
 
     @Basic
@@ -45,7 +47,7 @@ public class Infra {
     }
 
     @Basic
-    @Column(name = "CREATE_DATE", nullable = false)
+    @Column(name = "CREATE_DATE",  nullable = false, columnDefinition = "TIMESTAMP DEFAULT CURRENT_TIMESTAMP", insertable = false, updatable = false)
     public Timestamp getCreateDate() {
         return createDate;
     }
@@ -54,27 +56,4 @@ public class Infra {
         this.createDate = createDate;
     }
 
-    @Override
-    public boolean equals(Object o) {
-        if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
-
-        Infra tblInfra = (Infra) o;
-
-        if (id != tblInfra.id) return false;
-        if (typeId != tblInfra.typeId) return false;
-        if (childId != tblInfra.childId) return false;
-        if (createDate != null ? !createDate.equals(tblInfra.createDate) : tblInfra.createDate != null) return false;
-
-        return true;
-    }
-
-    @Override
-    public int hashCode() {
-        int result = (int) (id ^ (id >>> 32));
-        result = 31 * result + typeId;
-        result = 31 * result + (int) (childId ^ (childId >>> 32));
-        result = 31 * result + (createDate != null ? createDate.hashCode() : 0);
-        return result;
-    }
 }
diff --git a/src/main/java/com/loafle/overflow/module/member/model/Member.java b/src/main/java/com/loafle/overflow/module/member/model/Member.java
index 8e646ab..f722a70 100644
--- a/src/main/java/com/loafle/overflow/module/member/model/Member.java
+++ b/src/main/java/com/loafle/overflow/module/member/model/Member.java
@@ -101,7 +101,7 @@ public class Member {
         this.createDate = createDate;
     }
 
-    @ManyToMany
+    @ManyToOne
     @JoinColumn(name = "STATUS_ID", nullable = false)
     public MetaMemberStatus getStatus() {
         return status;
diff --git a/src/main/java/com/loafle/overflow/module/sensor/model/Sensor.java b/src/main/java/com/loafle/overflow/module/sensor/model/Sensor.java
index 8f69636..54b213b 100644
--- a/src/main/java/com/loafle/overflow/module/sensor/model/Sensor.java
+++ b/src/main/java/com/loafle/overflow/module/sensor/model/Sensor.java
@@ -1,5 +1,8 @@
 package com.loafle.overflow.module.sensor.model;
 
+import com.loafle.overflow.meta.MetaCrawler;
+import com.loafle.overflow.module.target.model.Target;
+
 import javax.persistence.*;
 import java.sql.Timestamp;
 
@@ -13,12 +16,12 @@ public class Sensor {
     private Timestamp createDate;
     private String desc;
     private String status;
-    private long targetId;
-    private short crawlerId;
-    private String crawelrInputItems;
+    private Target target;
+    private MetaCrawler crawler;
+    private String crawlerInputItems;
 
     @Id
-    @Column(name = "ID", nullable = false)
+    @GeneratedValue(strategy= GenerationType.IDENTITY)
     public long getId() {
         return id;
     }
@@ -28,7 +31,7 @@ public class Sensor {
     }
 
     @Basic
-    @Column(name = "CREATE_DATE", nullable = false)
+    @Column(name = "CREATE_DATE", nullable = false, columnDefinition = "TIMESTAMP DEFAULT CURRENT_TIMESTAMP", insertable = false, updatable = false)
     public Timestamp getCreateDate() {
         return createDate;
     }
@@ -57,64 +60,34 @@ public class Sensor {
         this.status = status;
     }
 
-    @Basic
-    @Column(name = "TARGET_ID", nullable = false)
-    public long getTargetId() {
-        return targetId;
+    @ManyToOne
+    @JoinColumn(name = "TARGET_ID", nullable = false)
+    public Target getTarget() {
+        return target;
     }
 
-    public void setTargetId(long targetId) {
-        this.targetId = targetId;
+    public void setTarget(Target target) {
+        this.target = target;
     }
 
-    @Basic
-    @Column(name = "CRAWLER_ID", nullable = false)
-    public short getCrawlerId() {
-        return crawlerId;
+    @ManyToOne
+    @JoinColumn(name = "CRAWLER_ID", nullable = false)
+    public MetaCrawler getCrawler() {
+        return crawler;
     }
 
-    public void setCrawlerId(short crawlerId) {
-        this.crawlerId = crawlerId;
+    public void setCrawler(MetaCrawler crawler) {
+        this.crawler = crawler;
     }
 
     @Basic
     @Column(name = "CRAWELR_INPUT_ITEMS", nullable = true, length = 50)
-    public String getCrawelrInputItems() {
-        return crawelrInputItems;
+    public String getcrawlerInputItems() {
+        return crawlerInputItems;
     }
 
-    public void setCrawelrInputItems(String crawelrInputItems) {
-        this.crawelrInputItems = crawelrInputItems;
+    public void setcrawlerInputItems(String crawlerInputItems) {
+        this.crawlerInputItems = crawlerInputItems;
     }
 
-    @Override
-    public boolean equals(Object o) {
-        if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
-
-        Sensor tblSensor = (Sensor) o;
-
-        if (id != tblSensor.id) return false;
-        if (targetId != tblSensor.targetId) return false;
-        if (crawlerId != tblSensor.crawlerId) return false;
-        if (createDate != null ? !createDate.equals(tblSensor.createDate) : tblSensor.createDate != null) return false;
-        if (desc != null ? !desc.equals(tblSensor.desc) : tblSensor.desc != null) return false;
-        if (status != null ? !status.equals(tblSensor.status) : tblSensor.status != null) return false;
-        if (crawelrInputItems != null ? !crawelrInputItems.equals(tblSensor.crawelrInputItems) : tblSensor.crawelrInputItems != null)
-            return false;
-
-        return true;
-    }
-
-    @Override
-    public int hashCode() {
-        int result = (int) (id ^ (id >>> 32));
-        result = 31 * result + (createDate != null ? createDate.hashCode() : 0);
-        result = 31 * result + (desc != null ? desc.hashCode() : 0);
-        result = 31 * result + (status != null ? status.hashCode() : 0);
-        result = 31 * result + (int) (targetId ^ (targetId >>> 32));
-        result = 31 * result + (int) crawlerId;
-        result = 31 * result + (crawelrInputItems != null ? crawelrInputItems.hashCode() : 0);
-        return result;
-    }
 }
diff --git a/src/main/java/com/loafle/overflow/module/sensor/model/SensorItem.java b/src/main/java/com/loafle/overflow/module/sensor/model/SensorItem.java
index 0c341dc..f77e105 100644
--- a/src/main/java/com/loafle/overflow/module/sensor/model/SensorItem.java
+++ b/src/main/java/com/loafle/overflow/module/sensor/model/SensorItem.java
@@ -1,5 +1,7 @@
 package com.loafle.overflow.module.sensor.model;
 
+import com.loafle.overflow.meta.MetaSensorItem;
+
 import javax.persistence.*;
 import java.sql.Timestamp;
 
@@ -10,12 +12,12 @@ import java.sql.Timestamp;
 @Table(name = "TBL_SENSOR_ITEM", schema = "public", catalog = "postgres")
 public class SensorItem {
     private long id;
-    private long sensorId;
-    private long itemId;
+    private Sensor sensor;
+    private MetaSensorItem item;
     private Timestamp createDate;
 
     @Id
-    @Column(name = "ID", nullable = false)
+    @GeneratedValue(strategy= GenerationType.IDENTITY)
     public long getId() {
         return id;
     }
@@ -24,28 +26,28 @@ public class SensorItem {
         this.id = id;
     }
 
-    @Basic
-    @Column(name = "SENSOR_ID", nullable = false)
-    public long getSensorId() {
-        return sensorId;
+    @ManyToOne
+    @JoinColumn(name = "SENSOR_ID", nullable = false)
+    public Sensor getSensor() {
+        return this.sensor;
     }
 
-    public void setSensorId(long sensorId) {
-        this.sensorId = sensorId;
+    public void setSensor(Sensor sensor) {
+        this.sensor = sensor;
+    }
+
+    @ManyToOne
+    @JoinColumn(name = "ITEM_ID", nullable = false)
+    public MetaSensorItem getItem() {
+        return item;
+    }
+
+    public void setItem(MetaSensorItem item) {
+        this.item = item;
     }
 
     @Basic
-    @Column(name = "ITEM_ID", nullable = false)
-    public long getItemId() {
-        return itemId;
-    }
-
-    public void setItemId(long itemId) {
-        this.itemId = itemId;
-    }
-
-    @Basic
-    @Column(name = "CREATE_DATE", nullable = false)
+    @Column(name = "CREATE_DATE", nullable = false, columnDefinition = "TIMESTAMP DEFAULT CURRENT_TIMESTAMP", insertable = false, updatable = false)
     public Timestamp getCreateDate() {
         return createDate;
     }
@@ -54,27 +56,4 @@ public class SensorItem {
         this.createDate = createDate;
     }
 
-    @Override
-    public boolean equals(Object o) {
-        if (this == o) return true;
-        if (o == null || getClass() != o.getClass()) return false;
-
-        SensorItem that = (SensorItem) o;
-
-        if (id != that.id) return false;
-        if (sensorId != that.sensorId) return false;
-        if (itemId != that.itemId) return false;
-        if (createDate != null ? !createDate.equals(that.createDate) : that.createDate != null) return false;
-
-        return true;
-    }
-
-    @Override
-    public int hashCode() {
-        int result = (int) (id ^ (id >>> 32));
-        result = 31 * result + (int) (sensorId ^ (sensorId >>> 32));
-        result = 31 * result + (int) (itemId ^ (itemId >>> 32));
-        result = 31 * result + (createDate != null ? createDate.hashCode() : 0);
-        return result;
-    }
 }