Description: The viewport size refers to the dimensions of the visible area in a web application, report, or dashboard. This concept is crucial for data visualization as it determines how visual elements and information are presented on the user’s screen. A well-designed viewport allows users to effectively interact with the data, facilitating understanding and analysis. The viewport dimensions can vary depending on the device used, whether it’s a desktop computer, tablet, or mobile phone, which means reports must be responsive and adapt to different screen sizes. Designers must consider the viewport size when creating visualizations, ensuring that charts, tables, and other elements are readable and accessible. Additionally, the viewport size influences the user experience, as an appropriate design can enhance navigation and interaction with the data. Therefore, understanding and optimizing viewport size is essential for maximizing the effectiveness of reports and dashboards in any data visualization tool.