الوسم: Cause and Effect Diagram

🎯 Cause and Effect Diagram (Fishbone Diagram) 📌 Definition: A Cause and Effect Diagram, also known as a Fishbone Diagram or Ishikawa Diagram, is a visualization tool used to systematically identify, explore, and display all the possible causes of a specific problem (effect). It helps teams to identify root causes rather than just symptoms. 🐟 Why It's Called Fishbone Diagram: The diagram resembles the skeleton of a fish: The head of the fish represents the problem or effect. The bones branching off the spine represent major cause categories. Sub-branches under each major category represent possible contributing factors. 🔍 Purpose: To identify the root causes of a problem. To organize and categorize potential causes. To promote brainstorming and systematic analysis in quality management. 📚 Structure: The diagram is typically built from: Effect (problem): written at the head of the fish. Major cause categories: main branches from the spine. Root causes and sub-causes: smaller branches off the main ones. ✅ Main Categories: 5M + 1E This classification is especially used in manufacturing and industrial analysis, but it can be adapted to other industries. 1. Man (People): Refers to human-related causes. Examples: Inadequate training Operator error Lack of experience Miscommunication 2. Machine: Refers to equipment, technology, and tools. Examples: Equipment malfunction Poor maintenance Outdated machinery Inconsistent calibration 3. Method: Refers to processes, procedures, and policies. Examples: Lack of standardized work Inefficient procedures Non-compliance with SOPs Poor planning 4. Material: Refers to raw materials, components, or consumables. Examples: Low-quality materials Incorrect materials Defective parts Variability in materials 5. Measurement: Refers to inspection, testing, and data collection methods. Examples: Inaccurate data Faulty measurement systems Lack of measurement standards Misinterpretation of results 6. Environment: Refers to external conditions (physical, social, or organizational). Examples: Temperature or humidity variations Poor lighting or noise Cultural or organizational environment Safety hazards 🛠 Steps to Create a Fishbone Diagram: Define the Problem: Write the effect (problem) at the head of the fish. Draw the Main Backbone: This is the central line pointing to the problem. Identify Major Categories: Use 5M+1E or categories relevant to your context. Brainstorm Causes: For each category, list potential causes and sub-causes. Analyze: Look for root causes, relationships, and areas to investigate further. Take Action: Use findings to develop corrective or preventive actions. 🧠 Tips for Use: Use cross-functional teams for broader insights. Don't rush; focus on identifying root causes, not just surface symptoms. Combine with other tools (e.g., 5 Whys, Pareto Analysis) for deeper root cause analysis.

الوسم: Cause and Effect Diagram

Cause and Effect Diagram (Fishbone Diagram)

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