Põhjustamisediagrammi

Põhjustamisediagramm, known in English as a cause-and-effect diagram or Ishikawa diagram, is a visualization tool used to identify, explore, and display all the possible causes related to a specific problem or effect. It was developed by Kaoru Ishikawa in the 1960s as a method to improve quality control in manufacturing. The diagram's structure resembles a fish skeleton, hence its common nickname.

The primary purpose of a põhjustamisediagramm is to systematically analyze the root causes of a problem rather than just addressing superficial symptoms. It encourages a team to brainstorm potential causes across different categories, fostering a deeper understanding of the issue. This comprehensive approach helps in identifying underlying factors that might otherwise be overlooked.

The diagram typically starts with the problem or effect written at the "head" of the fish. From there, main "bones" branch out, representing broad categories of potential causes. Common categories in manufacturing might include Manpower, Methods, Machines, Materials, Measurement, and Environment. For service industries, these categories might be adapted to fit the context, such as People, Processes, Policies, and Technology. Smaller "bones" then branch off these main categories, detailing specific potential causes within each. The process involves collaborative brainstorming, where team members contribute ideas for each category, leading to a rich and detailed map of contributing factors. This structured approach ensures that all possible avenues are explored, aiding in the development of effective solutions.