Business intelligence (BI) tools like Tableau and Power BI assist in decision-making by providing powerful data visualization, analysis, and reporting capabilities. Here’s how they help:

1. Data Visualization: BI tools turn complex data into interactive charts, graphs, and dashboards, making it easier to spot trends, patterns, and outliers.

2. Real-time Insights: They provide real-time data updates, allowing decision-makers to access the most current information and react promptly to changes.

3. Data Integration: BI tools can connect to various data sources (databases, spreadsheets, cloud services) and aggregate data, offering a comprehensive view of business performance.

4. Customizable Reports: Users can create customized reports and dashboards tailored to specific business needs, helping in focused analysis and strategic planning.

5. Interactive Analysis: Features like drill-downs and filter options allow users to explore data at different levels of detail, providing deeper insights into key metrics.

6. Forecasting and Predictive Analytics: Advanced BI tools offer predictive analytics to forecast future trends and outcomes, aiding in proactive decision-making.

By leveraging these capabilities, businesses can make more informed decisions based on accurate, comprehensive, and timely data.