J-OCTA is a multiscale simulation platform for studying materials phenomena from atomic and molecular scales to the mesoscale. It provides modeling and analysis capabilities for molecular interactions, interfaces, diffusion, phase separation, dispersion, viscoelasticity and other structure–property relationships. Building on more than two decades of research and development originating from the OCTA project, J-OCTA is also evolving as a physics-based simulation platform that can be combined with AI and materials informatics.

ASAP / ASAP-PRO provides atomic-scale materials simulation based on first-principles calculations for studying electronic structures, defects, interfaces, reactions and diffusion. Machine-learning force fields can extend atomistic simulations beyond the size and time scales that are practical with DFT alone. ASAP can also be combined with J-OCTA and MI-Suite to connect electronic- and atomic-scale information with multiscale simulation and materials data analysis. ASAP-PRO also supports workflows based on MACE machine-learning force fields, with DFT reference calculations and validation used to assess applicability to target materials.