Fishbone For Quality Improvement

The cause-and-effect diagram called the Fishbone or Ishikawa Diagram showing cost benefit analysis.

Full Answer Section

     
    • Enhanced brand reputation
    • Reduced risk
  • Costs Branch: List factors contributing to the potential costs of the decision. Examples:

    • Initial investment
    • Ongoing operational costs
    • Training costs
    • Maintenance costs
    • Potential for project delays

Sub-Branches: For each major branch (benefits and costs), add sub-branches to further detail the contributing factors. For example, under "Increased Revenue" (benefit), you could list factors like "opening new markets" or "launching a new product line." Under "Initial Investment" (cost), you could list factors like "equipment costs" or "software licensing fees."

Evaluation: At the "head" of the fish (opposite the main spine), write "Decision." Analyze the branches and sub-branches to weigh the potential benefits against the potential costs. Consider assigning values or estimations to each factor for a more quantitative analysis.

Benefits of using a Fishbone diagram for cost-benefit analysis:

  • Helps visualize all the relevant factors in a single place.
  • Promotes a more comprehensive analysis by considering both sides of the equation.
  • Facilitates brainstorming and discussion within a team or group setting.

Important Note:

  • A Fishbone diagram is a qualitative tool. It helps organize your thoughts but doesn't provide a definitive answer on whether the benefits outweigh the costs. You might need additional financial analysis or data to make a final decision.

Sample Answer

     

A Fishbone diagram (Ishikawa diagram) is typically used to identify root causes of problems, not directly for cost-benefit analysis. However, you can adapt a Fishbone diagram to visualize the factors influencing a cost-benefit decision. Here's how:

Main Spine: Write "Cost-Benefit Analysis" on the main spine of the fishbone.

Cause Categories (Branches):

  • Benefits Branch: List factors contributing to the potential benefits of the decision. Examples:

    • Increased revenue
    • Improved efficiency
    • Cost savings in other areas