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In this talk I’ll give a very short introduction to stream processing in general and then dive into event-time based stream processing. I will outline how this is important for IoT applications and also why it is such a challenging topic. Afterwards we’ll look at some real-world IoT use cases that are enabled by the support for robust event-time based stream processing provided by Apache Flink™. We will especially focus on easy of use and on correctness of results in the face of errors.

In the first half of the talk we’ll cover the basics of stream processing. We will look at the differences between event-time based and processing-time and at stateful stream processing. While on this, we’ll also highlight how the combination of these features is essential for doing robust stream processing in an IoT setting.

In the second part, we will look at how Flink solves some of the challenges that arise in event-time based processing and how that enables novel applications in the IoT space. We will do the latter by looking at a collection of real-world IoT use cases.

Some of the topics covered will be:
- Apache Flink
- Stateful Stream Processing
- Event Time vs. Processing Time Windowing
- Processing of out-of-order events
- IoT use cases