Speaker
Description
The Computing Resource Information Catalogue (CRIC) is a central element of the WLCG information ecosystem and a key operational tool for ATLAS Distributed Computing, providing authoritative, experiment-oriented views of sites, services, data-management endpoints and configuration parameters across distributed infrastructures. In preparation for HL-LHC, CRIC has undergone a major evolution: a full migration from a legacy stack to a modern Python 3 implementation, with the creation of FWKWEB — a lightweight web framework that now serves as the foundation for CRIC and future web services. This evolution enabled a cleaner modular structure around the CORE-CRIC components and VO-specific plugins, significantly improving maintainability, performance, and flexibility. New developments include enhanced interfaces for pledge and accounting data, Functional Test–driven automation in ATLAS-CRIC, extended topology and network metadata in WLCG-CRIC, and a prototype for unified FTS configuration. This contribution outlines the evolution of CRIC architecture, its growing role as a shared backbone for WLCG and experiment operations, and the roadmap ensuring its scalability and sustainability towards the HL-LHC era.