diff --git a/src/dashboard/data_fetcher.py b/src/dashboard/data_fetcher.py
index bb90e06..f31997f 100644
--- a/src/dashboard/data_fetcher.py
+++ b/src/dashboard/data_fetcher.py
@@ -7,6 +7,7 @@ def __init__(self, url):
         self.url = url
 
     def fetch_data(self, retries=3, delay=2):
+        """Fetch data from the specified URL with retry logic."""
         for attempt in range(retries):
             try:
                 response = requests.get(self.url)
diff --git a/src/dashboard/logging_setup.py b/src/dashboard/logging_setup.py
index 62c61a0..03e8500 100644
--- a/src/dashboard/logging_setup.py
+++ b/src/dashboard/logging_setup.py
@@ -1,6 +1,7 @@
 import logging
 
 def setup_logging(log_file='dashboard.log'):
+    """Set up logging configuration."""
     logging.basicConfig(
         level=logging.INFO,
         format='%(asctime)s - %(levelname)s - %(message)s',
diff --git a/src/dashboard/metrics.py b/src/dashboard/metrics.py
index 94e01c6..287c8eb 100644
--- a/src/dashboard/metrics.py
+++ b/src/dashboard/metrics.py
@@ -4,10 +4,12 @@ def __init__(self):
 
     def user_contribution_statistics(self):
         # Logic to calculate user contribution statistics
+        """Calculate user contribution statistics."""
         pass
 
     def system_performance_indicators(self):
         # Logic to calculate system performance indicators
+        """Calculate system performance indicators."""
         pass
 
     def tool_effectiveness(self):