5W1H (who, what, where, when, why, how) is a method of asking questions about a process or a problem taken up for improvement. Four of the W’s (who, what, where, when) and the one H are used to ...

Since the 5W1H approach is the most widely used, we will describe and explain how that process works. As mentioned before, you can use a variety of sequences for the 5W1H depending on the situation.