D1.2 Continuous Improvements of Architecture, and Release Management Process and System

The EXA4MIND project builds a platform for Extreme Data Analytics, leveraging Eu-ropean supercomputing centres and best-of-breed data stores from SQL and noSQL databases over object stores to classical High-Performance-Computing backend fle systems. The platform is to connect to the European data ecosystem with European Data Spaces, the European Open Science Cloud (EOSC) and EUDAT. The platform with its components, and in particular its core, the “Extreme Data Database”, need to be developed, released and deployed (or also published) in a well-coordinated manner. A formalisation of architectural improvement cycles, release management processes and deployment or publication processes is needed, but should not inhibit research work. This deliverable devises the necessary formalisms. It discusses our approach to categorise software products in modules and submodules, to manage individual submodule and entire module releases. Then, it describes our current modular and portable EXA4MIND architecture, explaining its concept, its parts and its usage in practice. The deliverable closes laying out our plan for handling architectural improvement cycles.