diff --git a/src/main/java/com/casaculturaqxd/sgec/DAO/ServiceFileDAO.java b/src/main/java/com/casaculturaqxd/sgec/DAO/ServiceFileDAO.java
new file mode 100644
index 00000000..0a669f13
--- /dev/null
+++ b/src/main/java/com/casaculturaqxd/sgec/DAO/ServiceFileDAO.java
@@ -0,0 +1,141 @@
+package com.casaculturaqxd.sgec.DAO;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.SortedSet;
+
+import com.casaculturaqxd.sgec.models.Evento;
+import com.casaculturaqxd.sgec.models.arquivo.ServiceFile;
+import com.casaculturaqxd.sgec.service.Service;
+
+public class ServiceFileDAO {
+  Connection connection;
+  Service service;
+
+  ServiceFileDAO(Service service){
+    this.service = service;
+  }
+
+  public void setConnection(Connection connection){
+    this.connection = connection;
+  }
+
+  public boolean inserirArquivo(ServiceFile arquivo){
+    try {
+      setService(arquivo);
+      service.enviarArquivo(arquivo);
+      String sql = "insert into service_file (file_key,suffix,service,bucket,ultima_modificacao)"
+              + " values(?,?,?,?,?)";
+      PreparedStatement stmt = connection.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);
+      stmt.setString(1, arquivo.getFileKey());
+      stmt.setString(2, arquivo.getSuffix());
+      stmt.setString(3, arquivo.getService().toString());
+      stmt.setString(4, arquivo.getBucket());
+      stmt.setDate(5, arquivo.getUltimaModificacao());
+      int numRemocoes = stmt.executeUpdate();
+      ResultSet rs = stmt.getGeneratedKeys();
+      if (rs.next()) {
+          arquivo.setServiceFileId(rs.getInt("id_service_file"));
+      }
+      stmt.close();
+      return numRemocoes > 0;
+    } catch (Exception e) {
+      return false;
+    }
+  }
+
+  public ServiceFile getArquivo(ServiceFile arquivo){
+    try {
+      setService(arquivo);
+      service.getArquivo(arquivo.getBucket(), arquivo.getFileKey());
+      String sql = "select * from service_file where id_service_file=?";
+      PreparedStatement stmt = connection.prepareStatement(sql);
+      stmt.setInt(1, arquivo.getServiceFileId());
+      ResultSet resultSet = stmt.executeQuery();
+      ServiceFile arquivoRetorno = null;
+      if (resultSet.next()) {
+        arquivoRetorno = arquivo;
+        arquivoRetorno.setServiceFileId(resultSet.getInt("id_service_file"));
+        arquivoRetorno.setFileKey(resultSet.getString("file_key"));
+        arquivoRetorno.setSuffix(resultSet.getString("suffix"));
+        arquivoRetorno.setService(resultSet.getString("service"));
+        arquivoRetorno.setBucket(resultSet.getString("bucket"));
+        arquivoRetorno.setUltimaModificacao(resultSet.getDate("ultima_modificacao"));
+      }
+      return arquivo;
+    } catch (Exception e) {
+      return null;
+    }
+  }
+
+  public boolean deleteArquivo(ServiceFile arquivo){
+    try {
+      setService(arquivo);
+      service.deletarArquivo(arquivo.getBucket(), arquivo.getFileKey());
+      String sql = "delete from service_file where id_service_file=?";
+      PreparedStatement stmt = connection.prepareStatement(sql);
+      stmt.setInt(1, arquivo.getServiceFileId());
+      int numRemocoes = stmt.executeUpdate();
+      stmt.close();
+      return numRemocoes > 0;
+    } catch (Exception e) {
+      return false;
+    }
+  }
+
+  public boolean vincularAllArquivos(Evento evento){
+    SortedSet<Integer> listaArquivos = evento.getListaArquivos();
+    for (Integer idServiceFile : listaArquivos) {
+      boolean temp = vincularArquivo(idServiceFile, evento.getIdEvento());
+      if(temp == false)
+        return false;
+    }
+    return true;
+  }
+
+  public boolean vincularArquivo(int idServiceFile, int idEvento){
+    String sql = "INSERT INTO service_file_evento(id_evento, id_service_file) VALUES (?, ?);";
+    try {
+        PreparedStatement stmt = connection.prepareStatement(sql);
+        stmt.setInt(1, idEvento);
+        stmt.setInt(2, idServiceFile);
+        stmt.execute();
+        stmt.close();
+        return true;
+    } catch (SQLException e) {
+        return false;
+    }
+  }
+
+  public boolean desvincularArquivo(int idServiceFile, int idEvento) {
+    String sql = "delete from service_file_evento where id_service_file=? and id_evento=?";
+    try {
+      PreparedStatement stmt = connection.prepareStatement(sql);
+      stmt.setInt(1, idServiceFile);
+      stmt.setInt(2, idEvento);
+      stmt.execute();
+      stmt.close();
+      return true;
+    } catch (Exception e) {
+      return false;
+    }
+  }
+
+  public boolean desvincularAllArquivos(Evento evento) {
+    SortedSet<Integer> listaArquivos = evento.getListaArquivos();
+    for (Integer idServiceFile : listaArquivos) {
+      boolean temp = desvincularArquivo(idServiceFile, evento.getIdEvento());
+      if(temp == false)
+        return false;
+    }
+    evento.setListaArquivos(null);
+    return true;
+  }
+
+  public void setService(ServiceFile arquivo) {
+        this.service = arquivo.getService();
+  }
+}
diff --git a/src/main/java/com/casaculturaqxd/sgec/enums/ServiceType.java b/src/main/java/com/casaculturaqxd/sgec/enums/ServiceType.java
index 419052fd..0d8047c9 100644
--- a/src/main/java/com/casaculturaqxd/sgec/enums/ServiceType.java
+++ b/src/main/java/com/casaculturaqxd/sgec/enums/ServiceType.java
@@ -3,13 +3,17 @@
 public enum ServiceType {
     S3("s3");
 
-    private final String type;
+    private static String type;
 
     ServiceType(String type){
-        this.type = type;
+        type = type;
+    }
+
+    public void setType(String type) {
+      this.type = type;
     }
     
-    String getType(){
-        return this.type;
+    public static String getType(){
+        return type;
     }
 }
diff --git a/src/main/java/com/casaculturaqxd/sgec/models/arquivo/ServiceFile.java b/src/main/java/com/casaculturaqxd/sgec/models/arquivo/ServiceFile.java
index 3521fe7d..d3ecd00a 100644
--- a/src/main/java/com/casaculturaqxd/sgec/models/arquivo/ServiceFile.java
+++ b/src/main/java/com/casaculturaqxd/sgec/models/arquivo/ServiceFile.java
@@ -3,10 +3,16 @@
 import java.io.File;
 import java.sql.Date;
 
+
+import com.casaculturaqxd.sgec.enums.ServiceType;
+import com.casaculturaqxd.sgec.service.Service;
+import com.casaculturaqxd.sgec.service.ServiceFactory;
+
 public class ServiceFile {
     private Integer serviceFileId;
     private String fileKey;
-    private String service;
+    private String suffix;
+    private Service service;
     private String bucket;
     private Date ultimaModificacao;
     private File preview;
@@ -16,6 +22,7 @@ public ServiceFile(File content, String bucket) {
         this.content = content;
         this.bucket = bucket;
         this.fileKey = content.getName();
+        this.service = ServiceFactory.getService(ServiceType.S3, "ACCESS_KEY","SECRET_KEY");
     }
 
 
@@ -24,6 +31,7 @@ public ServiceFile(String fileKey, String bucket, Date ultimaModificacao, File c
         this.bucket = bucket;
         this.ultimaModificacao = ultimaModificacao;
         this.content = content;
+        this.service = ServiceFactory.getService(ServiceType.S3, "ACCESS_KEY","SECRET_KEY");
     }
 
 
@@ -43,12 +51,21 @@ public void setFileKey(String fileKey) {
         this.fileKey = fileKey;
     }
 
-    public String getService() {
-        return service;
+
+    public String getSuffix() {
+        return suffix;
+    }
+
+    public void setSuffix(String suffix) {
+        this.suffix = suffix;
+    }
+
+    public Service getService() {
+        return this.service;
     }
 
-    public void setService(String service) {
-        this.service = service;
+    public void setService(String serviceType) {
+        this.service = ServiceFactory.getService(ServiceType.valueOf(serviceType), "ACCESS_KEY", "SECRET_KEY");
     }
 
     public String getBucket() {
@@ -75,7 +92,6 @@ public void setUltimaModificacao(Date ultimaModificacao) {
         this.ultimaModificacao = ultimaModificacao;
     }
 
-
     @Override
     public String toString() {
         return "ServiceFile [serviceFileId=" + serviceFileId + ", fileKey=" + fileKey + ", service="
diff --git a/src/main/java/com/casaculturaqxd/sgec/service/S3Service.java b/src/main/java/com/casaculturaqxd/sgec/service/S3Service.java
index 21a53f81..8e02b769 100644
--- a/src/main/java/com/casaculturaqxd/sgec/service/S3Service.java
+++ b/src/main/java/com/casaculturaqxd/sgec/service/S3Service.java
@@ -16,7 +16,6 @@
 import com.amazonaws.regions.Regions;
 import com.amazonaws.services.s3.AmazonS3;
 import com.amazonaws.services.s3.AmazonS3ClientBuilder;
-import com.amazonaws.services.s3.model.S3Object;
 import com.casaculturaqxd.sgec.models.arquivo.ServiceFile;
 
 import io.github.cdimascio.dotenv.Dotenv;
@@ -114,4 +113,9 @@ private String findFileSuffix(String fileName) {
       }
       return null;
    }
+
+   @Override
+   public String toString() {
+      return "s3";
+   }
 }