Which of the following is an idea categorization tool?1. Pareto Diagram2. Brainstorming3. Affinity diagram4. Ishikawa diagram

To answer the question about which of the options is an idea categorization tool, we can analyze each of the provided options:

1. Pareto Diagram: This is primarily a bar graph that represents the frequency of problems or causes in descending order, used to prioritize issues. It is not specifically a tool for categorizing ideas.

2. Brainstorming: This is a method for generating ideas, but it does not itself categorize them. It is more of a technique for idea generation.

3. Affinity Diagram: This is specifically designed for organizing ideas into groups based on their natural relationships, making it an effective idea categorization tool.

4. Ishikawa Diagram: Also known as a fishbone diagram, it is used to identify cause and effect but does not serve as a tool for categorizing a wide range of ideas.

Final Answer

The correct answer is 3. Affinity diagram, as it effectively categorizes ideas into groups based on their relationships.