diff --git a/src/main/java/ru/ulstu/extractor/heuristic/api/StructuralUnitIdentifier.java b/src/main/java/ru/ulstu/extractor/heuristic/api/StructuralUnitIdentifier.java
index 9ea3355..cfb7188 100644
--- a/src/main/java/ru/ulstu/extractor/heuristic/api/StructuralUnitIdentifier.java
+++ b/src/main/java/ru/ulstu/extractor/heuristic/api/StructuralUnitIdentifier.java
@@ -45,6 +45,8 @@ public abstract class StructuralUnitIdentifier {
 
     public abstract boolean isEntityClass(String sourceCode);
 
+    public abstract boolean isBusinessLogicClass(String sourceCode);
+
     protected abstract boolean isBusinessLogicClass(File file);
 
     public abstract List<BusinessLogicUnit> getBusinessLogicClasses(String projectPath, String subDirectory, List<File> projectFiles);
diff --git a/src/main/java/ru/ulstu/extractor/heuristic/service/JavaIdentifier.java b/src/main/java/ru/ulstu/extractor/heuristic/service/JavaIdentifier.java
index ef2a70a..c446fd1 100644
--- a/src/main/java/ru/ulstu/extractor/heuristic/service/JavaIdentifier.java
+++ b/src/main/java/ru/ulstu/extractor/heuristic/service/JavaIdentifier.java
@@ -126,6 +126,16 @@ public class JavaIdentifier extends StructuralUnitIdentifier {
         return false;
     }
 
+    @Override
+    public boolean isBusinessLogicClass(String sourceCode) {
+        try {
+            return classContainsAnnotation(sourceCode, SERVICE_ANNOTATION);
+        } catch (Exception ex) {
+            ex.printStackTrace();
+        }
+        return false;
+    }
+
     private boolean classContainsAnnotation(File file, String annotationDeclaration) throws IOException {
         return classContainsAnnotation(new String(Files.readAllBytes(file.toPath())), annotationDeclaration);
     }
diff --git a/src/main/java/ru/ulstu/extractor/heuristic/service/StructuralUnitService.java b/src/main/java/ru/ulstu/extractor/heuristic/service/StructuralUnitService.java
index 83dc150..4070c10 100644
--- a/src/main/java/ru/ulstu/extractor/heuristic/service/StructuralUnitService.java
+++ b/src/main/java/ru/ulstu/extractor/heuristic/service/StructuralUnitService.java
@@ -70,4 +70,11 @@ public class StructuralUnitService {
                 .filter(predicate)
                 .findAny();
     }
+
+    public boolean containsBusinessLogic(String sourceCode) {
+        return getStructuralUnitIdentifier(
+                structuralUnitIdentifier -> structuralUnitIdentifier.canAppliedToCode(sourceCode))
+                .map(identifier -> identifier.isBusinessLogicClass(sourceCode))
+                .orElse(false);
+    }
 }
diff --git a/src/main/java/ru/ulstu/extractor/model/FileChange.java b/src/main/java/ru/ulstu/extractor/model/FileChange.java
index 2a34ff3..80d1b8f 100644
--- a/src/main/java/ru/ulstu/extractor/model/FileChange.java
+++ b/src/main/java/ru/ulstu/extractor/model/FileChange.java
@@ -27,6 +27,8 @@ public class FileChange extends BaseEntity {
 
     private Boolean containsEntity;
 
+    private Boolean containsBusinessLogic;
+
     @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY)
     @JoinColumn(name = "file_change_id", unique = true)
     @Fetch(FetchMode.SUBSELECT)
@@ -86,4 +88,20 @@ public class FileChange extends BaseEntity {
     public void setContainsEntity(boolean containsEntity) {
         this.containsEntity = containsEntity;
     }
+
+    public Boolean getContainsEntity() {
+        return containsEntity;
+    }
+
+    public void setContainsEntity(Boolean containsEntity) {
+        this.containsEntity = containsEntity;
+    }
+
+    public Boolean getContainsBusinessLogic() {
+        return containsBusinessLogic;
+    }
+
+    public void setContainsBusinessLogic(Boolean containsBusinessLogic) {
+        this.containsBusinessLogic = containsBusinessLogic;
+    }
 }
diff --git a/src/main/java/ru/ulstu/extractor/service/GitRepositoryService.java b/src/main/java/ru/ulstu/extractor/service/GitRepositoryService.java
index 0cc4f15..de16237 100644
--- a/src/main/java/ru/ulstu/extractor/service/GitRepositoryService.java
+++ b/src/main/java/ru/ulstu/extractor/service/GitRepositoryService.java
@@ -206,6 +206,9 @@ public class GitRepositoryService {
                     fileChange.setContainsEntity(
                             structuralUnitService.containsEntity(getContent(repository, commit, maybeFileName.get()))
                     );
+                    fileChange.setContainsBusinessLogic(
+                            structuralUnitService.containsBusinessLogic(getContent(repository, commit, maybeFileName.get()))
+                    );
                     /// вытащить другие изменения из коммита
                     changes.add(fileChange);
                 }
diff --git a/src/main/resources/db/changelog-20210412_100000-schema.xml b/src/main/resources/db/changelog-20210412_100000-schema.xml
index 38ffdc7..83f9844 100644
--- a/src/main/resources/db/changelog-20210412_100000-schema.xml
+++ b/src/main/resources/db/changelog-20210412_100000-schema.xml
@@ -12,4 +12,9 @@
             <column name="contains_entity" type="boolean"/>
         </addColumn>
     </changeSet>
+    <changeSet author="orion" id="20210419-100000-1">
+        <addColumn tableName="file_change">
+            <column name="contains_business_logic" type="boolean"/>
+        </addColumn>
+    </changeSet>
 </databaseChangeLog>
\ No newline at end of file