### Relevant Articles:
- TBD
- [Improved Java Logging with Mapped Diagnostic Context (MDC)](http://www.baeldung.com/mdc-in-log4j-2-logback)
- [Java Logging with Nested Diagnostic Context (NDC)](http://www.baeldung.com/java-logging-ndc-log4j)
- [Drools Using Rules from Excel Files](http://www.baeldung.com/drools-excel)

### References

_Log4j MDC_
* <https://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/MDC.html>
* <http://veerasundar.com/blog/2009/10/log4j-mdc-mapped-diagnostic-context-what-and-why/>

_Log4j2 MDC_
* <https://logging.apache.org/log4j/2.x/manual/thread-context.html>

_Logback MDC_
* <http://logback.qos.ch/manual/mdc.html>


