diff --git a/requests/correcting_replication_service.py b/requests/correcting_replication_service.py
new file mode 100644
index 0000000..e0def4f
--- /dev/null
+++ b/requests/correcting_replication_service.py
@@ -0,0 +1,61 @@
+from datetime import datetime, timedelta
+from enumerations import ReplicationPackageStatusEnum
+from models import CorrectingReplicationOutPackage, ReplicantInfo
+from typing import List
+
+
+class CorrectingReplicationService:
+    EVENT_TYPE: str = 'correcting_replication'
+    object_list_size: int = 0
+    deleted_objects_count: int = 0
+    PACKAGE_TAG_NAME: str = 'package'
+    PACKAGE_ID_ATTRIBUTE_NAME: str = 'pkg_id'
+    SERVER_VERSION_ATTRIBUTE_NAME: str = 'server_version'
+    SERVER_ID_ATTRIBUTE_NAME: str = 'server_id'
+    OBJECTS_TAG_NAME: str = 'objects'
+    OBJECT_TAG_NAME: str = 'object'
+    OBJECT_ID_ATTRIBUTE_NAME: str = 'id'
+    IS_RSC_OBJECT: str = 'is_rsc'
+    OBJECT_SOURCE_ATTRIBUTE_NAME: str = 'source'
+    OBJECT_VERSION_ATTRIBUTE_NAME: str = 'version'
+    METADATA_VERSION_ATTRIBUTE_NAME: str = 'md_version'
+    ACTUAL_VERSION_DATE_ATTRIBUTE_NAME: str = 'version_date'
+    OBJECT_MISSING_ATTRIBUTE_NAME: str = 'missing'
+    CLASSIFIER_VERSION_ATTRIBUTE_NAME: str = 'metadata_clientVersion'
+    RESULT_TAG_NAME: str = 'result'
+    RESULT_MESSAGE_ATTRIBUTE_NAME: str = 'result_message'
+    VERSION_ID_ATTRIBUTE_NAME: str = 'version_id'
+    VERSION_SOURCE_ATTRIBUTE_NAME: str = 'version_source'
+
+    def start_correcting_replication(self, replicant_id: str, replication_period: int, replication_timeout: int,
+                                     manual_run: bool):
+        replicant = ReplicantInfo()
+        self.start_correcting_replication(replicant, replication_period, replication_timeout, manual_run)
+
+    def start_correcting_replication(self, except_replicant_id: List[str], replication_period: int,
+                                     replication_timeout: int, manual_run: bool):
+        pass
+
+    def start_correcting_replication(self, replicant: ReplicantInfo, replication_period: int, replication_timeout: int,
+                                     manual_run: bool):
+        pass
+
+    def create_replication_package(self, replicant: ReplicantInfo, replication_period: int, replication_timeout: int) -> CorrectingReplicationOutPackage:
+        pkg = CorrectingReplicationOutPackage()
+        pkg.filter_string = replicant.filter_string
+        pkg.replicant_id = replicant.replicant_id
+        pkg.server_address = replicant.server_address
+        pkg.replication_period = replication_period
+        pkg.replication_timeout = replication_timeout
+        pkg.status = ReplicationPackageStatusEnum.SENT_REQUEST_TO_CHILD
+        date = datetime.now()
+        pkg.replication_date = date
+        if replication_period:
+            delta = timedelta(days=-replication_period)
+            pkg.from_date = date + delta
+        if replication_timeout:
+            delta = timedelta(seconds=replication_timeout)
+            pkg.replication_timeout_date = date + delta
+        return pkg
+
+    def get_package_xml(self) -> str:
\ No newline at end of file
diff --git a/requests/enumerations.py b/requests/enumerations.py
new file mode 100644
index 0000000..b55aa0d
--- /dev/null
+++ b/requests/enumerations.py
@@ -0,0 +1,10 @@
+from enum import Enum
+
+
+class ReplicationPackageStatusEnum(Enum):
+    CANCELLED = -4
+    TIMEDOUT = -3
+    ERROR = -2
+    SENT_REQUEST_TO_CHILD = 1
+    SENT_PACKAGE_TO_CHILD = 2
+    COMPLETED = 3
diff --git a/requests/models.py b/requests/models.py
new file mode 100644
index 0000000..e7f21c9
--- /dev/null
+++ b/requests/models.py
@@ -0,0 +1,23 @@
+from datetime import datetime
+
+
+class ReplicantInfo:
+    server_address: str
+    filter_string: str
+    replicant_id: str
+    replicant_user_id: str
+    replicate_classifiers: bool
+
+
+class CorrectingReplicationOutPackage:
+    package_id: int
+    status: int
+    from_date: datetime
+    replication_date: datetime
+    replication_timeout_date: datetime
+    end_date: datetime
+    replicant_id: str
+    server_address: str
+    filter_string: str
+    replication_period: int
+    replication_timeout: int