Apache Zeppelin vs QlikView: What are the differences?

1. Architecture: Apache Zeppelin is an open-source web-based notebook providing data ingestion, data discovery, visualization, sharing, and collaboration features. In contrast, QlikView is a business intelligence tool that integrates data from various sources for visualization and analysis in a single application, providing a more centralized approach to data analytics.

2. Language Support: Apache Zeppelin supports multiple programming languages like Python, SQL, Scala, and R for data analysis and visualization. On the other hand, QlikView uses its proprietary scripting language called Qlikview Script to interact with its in-memory data model, limiting the language flexibility compared to Zeppelin.

3. Community and Support: As an open-source project, Apache Zeppelin has a robust community backing it, providing continuous development updates and support forums for users. In contrast, QlikView is a commercial tool, which means support is typically offered by the company through licensing agreements, with limited community support.

4. Data Integration and Connectivity: Apache Zeppelin offers integration with various data sources and databases, allowing users to connect, process, and visualize data from different sources seamlessly. QlikView also supports data integration from multiple sources; however, it is more focused on analyzing data stored within its in-memory data model.

5. Scalability: Apache Zeppelin can be used for small to large-scale data analysis projects, with the ability to scale horizontally and vertically based on the user's requirements. In comparison, QlikView provides scalability options but may face challenges in handling extremely large datasets or complex analytics tasks due to its architecture limitations.

6. Licensing Model: Apache Zeppelin is licensed under the Apache License, making it free to use and modify for both personal and commercial purposes. On the contrary, QlikView operates on a commercial licensing model, requiring users to purchase licenses based on the number of users or CPU cores, which can be a limiting factor for organizations with budget constraints.

In Summary, Apache Zeppelin and QlikView differ in their architecture, language support, community engagement, data integration capabilities, scalability, and licensing model.