Power BI is a data visualization tool enabling intuitive consumption of data. Power Apps enable non-developers to quickly create business applications for a variety of devices using a point-and-click approach. Flow is a business process automation tool enabling workflows such as event-driven emails and process flow gate-keeping devices. When used together, Power Platform enables easy development of low/no code business solutions.  For example, you can modernize legacy Excel-based solutions, using Power BI for the visual layer integrated with Power Apps for data inputs and logic processing, and Flow for event-triggered alerts and activities.