diff --git a/hc_spider/model.py b/hc_spider/model.py
new file mode 100644
index 0000000..b943fd2
--- /dev/null
+++ b/hc_spider/model.py
@@ -0,0 +1,31 @@
+import dataclasses
+import multiprocessing.connection
+import threading
+
+
+@dataclasses.dataclass
+class SharedObjects:
+    visited_nodes: dict
+    not_visited_nodes: dict
+    not_valid_urls: list[dict]
+    urls_with_error: list[dict]
+    shutdown_event: threading.Event
+    watchdog_event: threading.Event
+    worker_finished: threading.Barrier
+    job_queue: multiprocessing.Queue
+    log_queue: multiprocessing.Queue
+    config: dict
+    lock: multiprocessing.Lock
+
+    def dict(self) -> dict:
+        return {k: v for k, v in dataclasses.asdict(self).items()}
+
+
+@dataclasses.dataclass
+class Response:
+    links: set[str]
+
+
+@dataclasses.dataclass
+class ResponseError:
+    exc: Exception