What is a key action a business analyst should take to enhance chart visualization in Qlik Sense?

Adding a new dimension to the chart is a key action that greatly enhances chart visualization in Qlik Sense. By introducing an additional dimension, you can provide more context and detail to the data being represented. This allows for a richer analysis as it breaks down the data into more specific groups, facilitating comparisons and insights that would not be possible with a single dimension. The ability to drill down into the data through multiple dimensions also helps in identifying trends, patterns, and anomalies, leading to better data-driven decision-making.

While changing the color of chart elements, modifying the chart title, and increasing the font size of labels can improve the aesthetics, clarity, and usability of a chart, these actions do not fundamentally change the depth and breadth of data analysis as adding a dimension does. Enhancing the visualization by adjusting colors or labels focuses more on usability and visual appeal rather than expanding the analytical potential of the dataset.