src/coding_practices/tooling/logging.md

+**Page author:** @cmoineau
+
+# Understanding log level
+
+Aidge posses a class ``Log`` that handle the logging of information.
+
+## How to use
+
+To use it in **Python**:
+
+```python
+aidge_core.Log.notice(f"Saving {output_model.name()}")
+```
+In **C++**:
+```c++
+Log::notice("Saving {}", output_model.name)());
+```
+
+## When to use
+
+Here is a description of when to use each level:
+- **debug**: Fine-grained information that are useful for debugging
+- **info**: Informational message to highlight the progress of the application.
+- **notice**:  Informational message to highlight  a normal progress of the application but that are significant. (Note: Default level!)
+- **warn**: Potential issue due to an unexpected behavior that may lead to an error in the future.
+- **error**: Indicate an issue but the application may still be able to run.
+- **fatal**: Very severe issue, the application is forced to be aborted.
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