In general, there are three types of users:

and for large simulation tasks:

The end user runs the simulation program by controlling run time parameters. The interface with the program may be a graphical user interface, an interactive command line interface, or the macro-based system for batch. The end user needs a basic knowledge of how to control the program flow but does not necessarily have to know object-oriented programming or C++.

The application programmer is central to any simulation task. A firm knowledge of C++ is required to implement code in user action classes to specify, at a minimum, the detector description, the relevant particles and physics processes, and the initial event kinematics. A manual for the application programmer is found in the User's Guide: For Application Developers .

Using standard components of Geant4, a framework provider would add interfaces to external tools, such as for example, to Computer Aided Design (CAD) programs, Object-Oriented Data Base Management Systems (ODBMS) and graphics systems. This requires the development of new classes overloading standard Geant4 functionality and hence a solid understanding of object-oriented Programming. A manual for the framework provider is found in the User's Guide: For Toolkit Developers .

References

All user documentation can be found on the Geant4 homepage http://cern.ch/geant4 .

References for Object-Oriented Technology:

References for C++: