diff --git a/src/main/java/ru/nbch/indicsearchservice/service/IndicSearchService.java b/src/main/java/ru/nbch/indicsearchservice/service/IndicSearchService.java
index 366586f..41b177e 100644
--- a/src/main/java/ru/nbch/indicsearchservice/service/IndicSearchService.java
+++ b/src/main/java/ru/nbch/indicsearchservice/service/IndicSearchService.java
@@ -1,14 +1,40 @@
 package ru.nbch.indicsearchservice.service;
 
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Service;
 import ru.nbch.indicsearchservice.dto.request.AddSearchJobRequestDto;
 import ru.nbch.indicsearchservice.dto.response.AddSearchJobResponseDto;
 import ru.nbch.indicsearchservice.dto.response.JobStatusResponseDto;
+import ru.nbch.indicsearchservice.service.tableloader.AbstractTableLoader;
+import ru.nbch.indicsearchservice.service.tableloader.TableLoaderName;
+import ru.nbch.indicsearchservice.util.TableData;
 
 @Service
 public class IndicSearchService {
+    private final List<AbstractTableLoader> tableLoaders;
+
+    public IndicSearchService(List<AbstractTableLoader> tableLoaders) {
+        this.tableLoaders = tableLoaders;
+    }
+
     public AddSearchJobResponseDto addSearchJob(AddSearchJobRequestDto request) {
+        List<TableLoaderName> foundTableLoaderNames = TableLoaderName
+            .getTableLoaderNamesByDataTypeAndSearchParameter(request.getDataType(), request.getSearchParameter());
+
+        List<AbstractTableLoader> suitableTableLoaders = tableLoaders.stream()
+            .filter(tl -> foundTableLoaderNames.contains(tl.getTableLoaderName()) || foundTableLoaderNames.contains(tl.getChildLoaders()))
+            .toList();
+
+        List<TableData> result = new ArrayList<>();
+        for (AbstractTableLoader tableLoader : suitableTableLoaders) {
+            TableData tableData = tableLoader.fetchData(Map.of());
+            tableLoader.fetchChildLoaders(tableData);
+            result.add(tableData);
+        }
+
         return null;
     }
 
diff --git a/src/main/java/ru/nbch/indicsearchservice/service/tableloader/AbstractTableLoader.java b/src/main/java/ru/nbch/indicsearchservice/service/tableloader/AbstractTableLoader.java
new file mode 100644
index 0000000..4a00d24
--- /dev/null
+++ b/src/main/java/ru/nbch/indicsearchservice/service/tableloader/AbstractTableLoader.java
@@ -0,0 +1,17 @@
+package ru.nbch.indicsearchservice.service.tableloader;
+
+import java.util.List;
+import java.util.Map;
+import ru.nbch.indicsearchservice.util.TableData;
+
+public abstract class AbstractTableLoader {
+    public abstract TableLoaderName getTableLoaderName();
+
+    public abstract List<TableLoaderName> getChildLoaders();
+
+    public abstract TableData fetchData(Map<String, Object> inputData);
+
+    public abstract void fetchChildLoaders(TableData tableData);
+
+    public abstract Long countData(Map<String, Object> inputData);
+}
diff --git a/src/main/java/ru/nbch/indicsearchservice/service/tableloader/RuTradeTableLoader.java b/src/main/java/ru/nbch/indicsearchservice/service/tableloader/RuTradeTableLoader.java
new file mode 100644
index 0000000..969bd01
--- /dev/null
+++ b/src/main/java/ru/nbch/indicsearchservice/service/tableloader/RuTradeTableLoader.java
@@ -0,0 +1,27 @@
+package ru.nbch.indicsearchservice.service.tableloader;
+
+import java.util.List;
+import java.util.Map;
+import ru.nbch.indicsearchservice.util.TableData;
+
+public class RuTradeTableLoader extends AbstractTableLoader {
+    @Override
+    public TableLoaderName getTableLoaderName() {
+        return TableLoaderName.RU_TRADE;
+    }
+
+    @Override
+    public List<TableLoaderName> getChildLoaders() {
+        return List.of();
+    }
+
+    @Override
+    public TableData fetchData(Map<String, Object> inputData) {
+        return null;
+    }
+
+    @Override
+    public Long countData(Map<String, Object> inputData) {
+        return 0L;
+    }
+}
diff --git a/src/main/java/ru/nbch/indicsearchservice/service/tableloader/RuUidTableLoader.java b/src/main/java/ru/nbch/indicsearchservice/service/tableloader/RuUidTableLoader.java
new file mode 100644
index 0000000..d386e40
--- /dev/null
+++ b/src/main/java/ru/nbch/indicsearchservice/service/tableloader/RuUidTableLoader.java
@@ -0,0 +1,38 @@
+package ru.nbch.indicsearchservice.service.tableloader;
+
+import java.util.List;
+import java.util.Map;
+import org.springframework.stereotype.Component;
+import ru.nbch.indicsearchservice.util.TableData;
+
+@Component
+public class RuUidTableLoader extends AbstractTableLoader {
+    @Override
+    public TableLoaderName getTableLoaderName() {
+        return TableLoaderName.RU_UID;
+    }
+
+    @Override
+    public List<TableLoaderName> getChildLoaders() {
+        return List.of(TableLoaderName.RU_TRADE);
+    }
+
+    @Override
+    public TableData fetchData(Map<String, Object> inputData) {
+        return null;
+    }
+
+    @Override
+    public void fetchChildLoaders(TableData tableData) {
+    Object val = tableData.getFieldData().stream().anyMatch(fieldDataDto -> fieldDataDto.key().equals("serialNumber"));
+    }
+
+    @Override
+    public Long countData(Map<String, Object> inputData) {
+        return 0L;
+    }
+
+    public void collector(List<Map<String, Object>> mapperQueryResult, Subject subject) {
+        subject.addResultByTable()
+    }
+}
diff --git a/src/main/java/ru/nbch/indicsearchservice/service/tableloader/TableLoaderName.java b/src/main/java/ru/nbch/indicsearchservice/service/tableloader/TableLoaderName.java
new file mode 100644
index 0000000..8f6e21c
--- /dev/null
+++ b/src/main/java/ru/nbch/indicsearchservice/service/tableloader/TableLoaderName.java
@@ -0,0 +1,44 @@
+package ru.nbch.indicsearchservice.service.tableloader;
+
+import java.util.ArrayList;
+import java.util.List;
+import ru.nbch.indicsearchservice.model.enums.DataType;
+import ru.nbch.indicsearchservice.model.enums.SearchParameter;
+
+public enum TableLoaderName {
+    RU_UID( // 1st level table
+        List.of(DataType.GUTDF, DataType.RUTDF, DataType.TUTDF),
+        List.of(SearchParameter.FID)
+    ),
+    RU_TRADE(List.of(), List.of()), // 2nd level table
+    ;
+
+    private final List<DataType> suitableForDataType;
+    private final List<SearchParameter> suitableForSearchParameter;
+
+    TableLoaderName(List<DataType> suitableForDataType, List<SearchParameter> suitableForSearchParameter) {
+        this.suitableForDataType = suitableForDataType;
+        this.suitableForSearchParameter = suitableForSearchParameter;
+    }
+
+    public List<DataType> getSuitableForDataType() {
+        return suitableForDataType;
+    }
+
+    public List<SearchParameter> getSuitableForSearchParameter() {
+        return suitableForSearchParameter;
+    }
+
+    public static List<TableLoaderName> getTableLoaderNamesByDataTypeAndSearchParameter(DataType dataType, SearchParameter searchParameter) {
+        List<TableLoaderName> result = new ArrayList<>();
+
+        for (TableLoaderName tableLoaderName : TableLoaderName.values()) {
+            if (tableLoaderName.getSuitableForDataType().contains(dataType) &&
+                tableLoaderName.getSuitableForSearchParameter().contains(searchParameter)) {
+                result.add(tableLoaderName);
+            }
+        }
+
+        return result;
+    }
+}
diff --git a/src/main/java/ru/nbch/indicsearchservice/util/TableData.java b/src/main/java/ru/nbch/indicsearchservice/util/TableData.java
new file mode 100644
index 0000000..82a37ec
--- /dev/null
+++ b/src/main/java/ru/nbch/indicsearchservice/util/TableData.java
@@ -0,0 +1,57 @@
+package ru.nbch.indicsearchservice.util;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+
+public class TableData {
+    private String tableName;
+    private List<FieldDataDto> fieldData = new ArrayList<>();
+    private List<TableData> relatedData = new ArrayList<>();
+
+    public TableData() {
+    }
+
+    public TableData(String tableName, List<FieldDataDto> fieldData, List<TableData> relatedData) {
+        this.tableName = tableName;
+        this.fieldData = fieldData;
+        this.relatedData = relatedData;
+    }
+
+    public String getTableName() {
+        return tableName;
+    }
+
+    public List<FieldDataDto> getFieldData() {
+        return fieldData;
+    }
+
+    public List<TableData> getRelatedData() {
+        return relatedData;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o == null || getClass() != o.getClass()) return false;
+        TableData tableData = (TableData) o;
+        return Objects.equals(tableName, tableData.tableName) && Objects.equals(fieldData, tableData.fieldData) && Objects.equals(relatedData, tableData.relatedData);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(tableName, fieldData, relatedData);
+    }
+
+    @Override
+    public String toString() {
+        return "TableData{" +
+            "tableName='" + tableName + '\'' +
+            ", fieldData=" + fieldData +
+            ", relatedData=" + relatedData +
+            '}';
+    }
+
+    public record FieldDataDto(String key,
+                               Object value) {
+    }
+}