Euro as local currency

The replacement of the DM by the EURO as the local currency requires the conversion of numerous legacy mainframe data processing systems and data stocks, some of which are several decades old. The modules are adjusted either automatically or manually. The automatic process is for more standardized source code that occurs in many programs fairly frequently. Manual adjustment is always necessary if it is important to understand the context of the source code when making the changes. Perl scripts play a significant role in the automated analysis and program conversion. Other core aspects of the task are comprehensive testing, planning the activation and introducing the adjusted software modules.