General reference to Thermo-Calc and DICTRA (as of June 2016 DICTRA is also referred to as the Diffusion Module):
The Precipitation Module (TC-PRISMA) User Guide 2019a (accessed 23 March 2019)
The TQ-Interface SDK Programmer’s Guide 2019a (accessed 23 March 2019)
DICTRA and TC-PRISMA Renamed as Add-on Modules
The integration of TC-PRISMA into Thermo-Calc in 2016a has prompted a module-based approach to naming these powerful features that require Thermo-Calc as the core software.
In order to make it clearer as to how these two modules enhance the Thermo-Calc software, DICTRA has been renamed to the Diffusion Module (DICTRA). Although the DICTRA name is well-known and established in the literature, this module-based approach more clearly defines how DICTRA and Thermo-Calc work together.
The same concept applies to TC-PRISMA, which is now called the Precipitation Module (TC-PRISMA). It is particularly relevant to this add-on module because when you purchase a license for the Precipitation Module you get the Precipitation Calculator. The Precipitation Calculator is integrated into the Graphical Mode interface, which is part of the Thermo-Calc tree structure and calculation engines and not a standalone piece of software.