To design a dashboard for visualizing operational KPIs across multiple departments using Google Sheets, I would start by clearly defining the key metrics that need to be tracked for each department. This ensures that the dashboard remains focused and relevant. I would use pivot tables to organize and summarize the data efficiently, allowing for easy manipulation and analysis. To enhance clarity, I would incorporate visual elements like bar charts, line graphs, and pie charts, which can be created directly from the pivot tables. These visuals help in quickly conveying trends and insights to stakeholders. Additionally, I would ensure that the dashboard is interactive by using data validation and drop-down lists, enabling users to filter and view specific data points. This interactivity makes the dashboard more user-friendly and adaptable to different needs. Lastly, I would maintain a clean and intuitive layout, using consistent color schemes and labels to guide users through the data, ensuring that the dashboard is both informative and easy to navigate.