5W1H Analysis

One-Line Definition

Analyze problems comprehensively through the six dimensions: Who, What, When, Where, Why, and How.

Core Concept

The 5W1H is the most basic analysis framework: Who, What, When, Where, Why, and How.

What Problems It Solves

When information is incomplete, options are numerous, or risks are unclear, it helps pull your judgment from intuition back to structured analysis.

More specifically, the 5W1H Analysis is suitable for answering questions like: How can we better understand the current situation? How can we make more reasonable judgments and take action?

When to Use

• When the problem becomes complex and intuitive judgment is not reliable enough.
• When the team has disagreements on the next steps and needs a common analysis framework.
• When you need to turn abstract judgments into concrete actions, checklists, or experiments.
• When the effectiveness of current practices declines and you need to re-examine the underlying logic.

When NOT to Use

• When the problem is simple and taking action is more important than analysis.
• When basic facts are lacking and you’re just spinning concepts without substance.
• When using the model only to justify existing conclusions rather than helping to correct judgment.

Summary

The 5W1H is applicable to almost all scenarios requiring comprehensive understanding and analysis, and serves as an introductory tool for structured thinking.