eCl@ss - eCl@ss Updated at: 03-02-2021 Show more information ICT performance characteristics Interoperability (ICT) Industrial Reference ICT Architectures Reference Architectural Model Industrie 4.0 (RAMI 4.0) RAMI 4.0 Vertical Axis and associated standards Information Layer (RAMI 4.0) eCl@ss - eCl@ss