Kai Waehner

314 posts
builds cloud-native event streaming infrastructures for real-time data processing and analytics
Streaming ETL with Apache Kafka in Healthcare
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Streaming ETL with Apache Kafka in the Healthcare Industry

IT modernization and innovative new technologies change the healthcare industry significantly. This blog series explores how data streaming with Apache Kafka enables real-time data processing and business process automation. This is part three: Streaming ETL. Examples include Babylon Health and Bayer.
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Legacy Modernization and Hybrid Multi Cloud with Apache Kafka in Healthcare
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  • 4 minute read

Legacy Modernization and Hybrid Multi-Cloud with Kafka in Healthcare

IT modernization and innovative new technologies change the healthcare industry significantly. This blog series explores how data streaming with Apache Kafka enables real-time data processing and business process automation. This is part two: Legacy modernization and hybrid multi-cloud. Examples include Optum / UnitedHealth Group, Centene, and Bayer.
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Data Streaming with Apache Kafka in the Healthcare Industry
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Apache Kafka in the Healthcare Industry

IT modernization and innovative new technologies change the healthcare industry significantly. This blog series explores real-world examples of data streaming with Apache Kafka to increase efficiency, reduce cost, and improve the human experience across the healthcare value chain including pharma, insurance, providers, retail, and manufacturing. This is part one: Overview.
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Cloud Native Core Banking Platform powered by Apache Kafka Data Streaming
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  • 10 minute read

Cloud-native Core Banking Modernization with Apache Kafka

Most financial service institutions operate their core banking platform on legacy mainframe technologies. The monolithic, proprietary, inflexible architecture creates many challenges for innovation and cost-efficiency. This blog post explores three open, elastic, and scalable banking solutions powered by Apache Kafka to solve these problems.
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Apache Kafka Transactions API vs Big Data Lake and Batch Analytics
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  • 9 minute read

Analytics vs. Transactions in Data Streaming with Apache Kafka

Workloads for analytics and transactions have very unlike characteristics and requirements. Many people think that Apache Kafka is not built for transactions and should only be used for big data analytics. This blog post explores when and how to use Kafka in resilient, mission-critical architectures and when to use the built-in Transaction API.
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The Real-Time Food and Retail Supply Chain powered by Apache Kafka
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  • 9 minute read

Real-Time Supply Chain with Apache Kafka in the Food and Retail Industry

This blog post explores real-world deployments across the end-to-end supply chain powered by data streaming with Apache Kafka to improve business processes with real-time services. The examples include manufacturing, logistics, stores, delivery, restaurants, and other parts of the business. Case studies include Walmart, Albertsons, Instacart, Domino’s Pizza, Migros, and more.
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The Trinity of Data Streaming in Industrial IoT - Apache Kafka MQTT OPC UA
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  • 15 minute read

OPC UA, MQTT, and Apache Kafka – The Trinity of Data Streaming in IoT

In the IoT world, MQTT and OPC UA have established themselves as open and platform-independent standards for data exchange in Industrial IoT and Industry 4.0 use cases. Data Streaming with Apache Kafka is the data hub for integrating and processing massive volumes of data at any scale in real-time. This blog post explores the relationship between Kafka and the IoT protocols, when to use which technology, and why sometimes HTTP/REST is the better choice. The end explores real-world case studies from Audi and BMW.
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Event Streaming as the Data Hub for Crypto NFT and Metaverse
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  • 19 minute read

Apache Kafka as Data Hub for Crypto, DeFi, NFT, Metaverse – Beyond the Buzz

Decentralized finance with crypto and NFTs is a huge topic these days. It becomes a powerful combination with the coming metaverse platforms across industries. This blog post explores the relationship between crypto technologies and modern enterprise architecture. I discuss how event streaming and Apache Kafka help build innovation and scalable real-time applications of a future metaverse. Let’s skip the buzz (and NFT bubble) and instead review existing real-world deployments in the crypto and blockchain world powered by Kafka and its ecosystem.
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Apache Camel vs Apache Kafka Comparison
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  • 13 minute read

When to use Apache Camel vs. Apache Kafka?

Should I use Apache Camel or Apache Kafka for my next integration project? The question is very valid and comes up regularly. This blog post explores both open-source frameworks and explains the difference between application integration and event streaming. The comparison discusses when to use Kafka or Camel, when to combine them, when not to use them at all. A decision tree shows how you can quickly qualify out one for the other.
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Kafka for Real-Time Replication between Edge and Hybrid Cloud

Not all workloads should go to the cloud! Low latency, cybersecurity, and cost-efficiency require a suitable combination of edge computing and cloud integration. This blog post explores hybrid data streaming with Apache Kafka anywhere. A live demo shows data synchronization from the edge to the public cloud across continents with Kafka on Hivecell edge hardware and serverless Confluent Cloud.
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