Nemesis program forms the main part of Nemesis package. It serves for building and visulization of structures or calculated results.

Main properties are as follows:

- structure editor with ful undo/redo support up to user defined level

- graphical objects for different visulization of structures

- graphical profiles

- special graphical objects

- creation of calculation jobs and properties

- management of jobs via Charon interface

- visualization of results

- physical units can be changed into preferable ones even on-the-fly

From development point of view, the program is modular since it uses plugins technology. This allows very fast extension of program by the development of new plugins from scratch or by the combination of existing plugins functionality into new ones.