The Euclid Archive System: A Data-Centric Approach to Big Data

We review the architectural design and implementation of the Euclid Archive System (EAS) which is in the core of the Euclid Science Ground System (SGS) and represents a new generation of data-centric scientific information systems. It will handle up to one hundred PBs of mission data in a heterogeneous storage environment and will allow intensive access both to the data and metadata produced during the mission. This paper makes a particular emphasis on the access to science-ready products and interfaces which will be provided for the end-user.