Five W One H

The 5W1H is a problem-solving technique that poses six questions that cover all aspects of a problem: why (reason), who (person), what (object), when (time), where (location or platform), and how (method). It aims to view ideas from various perspectives with the goal to gain a holistic knowledge of a given situation.  It is commonly used as a continuous process-improvement model and accomplished by answering all the basic elements within a problem which are what, who, where, when, why, and how.