I think an explanation is very easy: logging is not a "must" requirement, so why spend your time on it. I believe Roberto submitted his assignment without using logging.
I provided logging just for debugging purposes, can be reused when future enhancements are developed. So used nothing more than writing a message at the start and end of each method in my Data class and business service implementations, just outputting method name, parameters and return values.
I think all of you undertood why I asked this....lollll
Ok Ok ok...I'll put in my choices something "log is not a must requirement" cause I didn't use !!
And...Nicolas..I hope you pass !!!