+A **decision rule** is a defined pathway, translating available observations or data into a specific action or choice. It formalizes the leap from information to conclusion, a core concept in [Statistics](/wiki/Statistics) and [Machine Learning](/wiki/Machine_Learning), directing choices towards a desired outcome.
+## See also
+- [Algorithm](/wiki/Algorithm)
+- [Classification](/wiki/Classification)
+- [Optimization](/wiki/Optimization)