diff --git a/src/main/java/com/example/demo/app/domain/model/TransactionModel.java b/src/main/java/com/example/demo/app/domain/model/TransactionModel.java
new file mode 100644
index 0000000..d985844
--- /dev/null
+++ b/src/main/java/com/example/demo/app/domain/model/TransactionModel.java
@@ -0,0 +1,22 @@
+package com.example.demo.app.domain.model;
+
+import java.time.LocalDate;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class TransactionModel {
+
+	private Long transactionId;
+	
+	private Long userId;
+	
+	private Long categoryId;
+	
+	private Integer amount;
+	
+	private LocalDate transactionDate;
+	
+}
\ No newline at end of file
diff --git a/src/main/java/com/example/demo/app/domain/service/TransactionService.java b/src/main/java/com/example/demo/app/domain/service/TransactionService.java
new file mode 100644
index 0000000..bcdf8ff
--- /dev/null
+++ b/src/main/java/com/example/demo/app/domain/service/TransactionService.java
@@ -0,0 +1,5 @@
+package com.example.demo.app.domain.service;
+
+public interface TransactionService {
+
+}
diff --git a/src/main/java/com/example/demo/app/domain/service/impl/TransactionServiceImpl.java b/src/main/java/com/example/demo/app/domain/service/impl/TransactionServiceImpl.java
new file mode 100644
index 0000000..3484d9e
--- /dev/null
+++ b/src/main/java/com/example/demo/app/domain/service/impl/TransactionServiceImpl.java
@@ -0,0 +1,10 @@
+package com.example.demo.app.domain.service.impl;
+
+import org.springframework.stereotype.Service;
+
+import com.example.demo.app.domain.service.TransactionService;
+
+@Service
+public class TransactionServiceImpl implements TransactionService{
+
+}
diff --git a/src/main/java/com/example/demo/app/infra/entity/TransactionEntity.java b/src/main/java/com/example/demo/app/infra/entity/TransactionEntity.java
index 29564dd..fd811c5 100644
--- a/src/main/java/com/example/demo/app/infra/entity/TransactionEntity.java
+++ b/src/main/java/com/example/demo/app/infra/entity/TransactionEntity.java
@@ -26,7 +26,7 @@ public class TransactionEntity {
 	@Id
 	@GeneratedValue(strategy = GenerationType.IDENTITY)
 	@Column(name = "transaction_id")
-	private Integer transactionId;
+	private Long transactionId;
 	
 	@Column(name = "amount", nullable = false)
 	private Integer amount;
diff --git a/src/main/java/com/example/demo/app/infra/repository/TransactionRepository.java b/src/main/java/com/example/demo/app/infra/repository/TransactionRepository.java
new file mode 100644
index 0000000..4d768bc
--- /dev/null
+++ b/src/main/java/com/example/demo/app/infra/repository/TransactionRepository.java
@@ -0,0 +1,9 @@
+package com.example.demo.app.infra.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import com.example.demo.app.infra.entity.TransactionEntity;
+
+public interface TransactionRepository extends JpaRepository<TransactionEntity, Long>{
+
+}
diff --git a/src/main/java/com/example/demo/app/presentation/controller/SelectTransactionController.java b/src/main/java/com/example/demo/app/presentation/controller/TransactionController.java
similarity index 53%
rename from src/main/java/com/example/demo/app/presentation/controller/SelectTransactionController.java
rename to src/main/java/com/example/demo/app/presentation/controller/TransactionController.java
index 7383677..fca93d3 100644
--- a/src/main/java/com/example/demo/app/presentation/controller/SelectTransactionController.java
+++ b/src/main/java/com/example/demo/app/presentation/controller/TransactionController.java
@@ -2,10 +2,16 @@ package com.example.demo.app.presentation.controller;
 
 import org.springframework.stereotype.Controller;
 
+import com.example.demo.app.domain.service.TransactionService;
+
 import lombok.RequiredArgsConstructor;
 
 @Controller
 @RequiredArgsConstructor
-public class SelectTransactionController {
+public class TransactionController {
+	
+	private final TransactionService transactionService;
+	
+	
 	
 }
diff --git a/src/main/java/com/example/demo/app/presentation/form/TransactionForm.java b/src/main/java/com/example/demo/app/presentation/form/TransactionForm.java
index 002dd07..0f571c7 100644
--- a/src/main/java/com/example/demo/app/presentation/form/TransactionForm.java
+++ b/src/main/java/com/example/demo/app/presentation/form/TransactionForm.java
@@ -1,5 +1,10 @@
 package com.example.demo.app.presentation.form;
 
+import java.time.LocalDate;
+import java.util.List;
+
+import com.example.demo.app.domain.model.TransactionModel;
+
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
@@ -9,6 +14,27 @@ import lombok.NoArgsConstructor;
 @NoArgsConstructor
 public class TransactionForm {
 
-	
-	
+	private Long transactionId;
+
+	private Long userId;
+
+	private Long categoryId;
+
+	private Integer amount;
+
+	private LocalDate transactionDate;
+
+	public static TransactionForm convertFrom(TransactionModel transactionModel) {
+		return new TransactionForm(
+				transactionModel.getTransactionId(),
+				transactionModel.getUserId(),
+				transactionModel.getCategoryId(),
+				transactionModel.getAmount(),
+				transactionModel.getTransactionDate());
+	}
+
+	public static List<TransactionForm> convertFrom(List<TransactionModel> transactionModelList) {
+		return transactionModelList.stream().map(TransactionForm::convertFrom).toList();
+	}
+
 }