single framework puts many of the specialized tools in the batch and real-time ecosystems out of reach. Kappa architecture Jay Kreps introduced the kappa architecture to use a pure streaming approach with a single code base. In a technical discussion over the merits of employing a pure streaming approach, it was noted that using a flexible streaming framework such as Apache Samza could provide some of the same benefits as batch processing without the latency. Such a streaming framework could allow for collecting and processing arbitrarily large windows of data, accommodate blocking, and handle state. See also Event stream processing AWS Lambda, a specific service from Amazon Web Services, in which only actual execution time is charged References External links Repository of Information on Lambda of Architecture Data processing Big data Data management Free software projects Software architecture