This document delivers the second release of the i4Q RA, representing the second output of Task 2.1. T2.1 “i4Q Reference Framework” is devoted to the design of an architecture for IoTbased Reliable Industrial Data Services (RIDS) ready to deal with large amounts of data. To this purpose, in D2.1 “i4Q Reference Architecture and Viewpoints Analysis” the preliminary conceptualisation of the i4Q Reference Architecture followed the ISO/IEC/IEEE 42010 “Systems and software engineering – Architecture”, starting from a deep understanding and alignment among the most common reference architectures in the manufacturing domain.
