Explore a comprehensive talk on improving app user experience through unified batch and stream processing using Google's Dataflow model. Dive into the evolution of big data processing, from MapReduce to Apache Beam, and learn how to effectively manage and visualize data streams. Discover practical insights on implementing time-based windows, handling delays, and utilizing triggers in Beam. Follow along with a real-time demonstration showcasing Dataflow's capabilities, including pipeline creation, refinement, and visualization techniques. Gain valuable knowledge on integrating batch and streaming data processing to enhance your application's performance and user experience.