NVersionsProgrammierung
NVersionsProgrammierung, also known as N-version programming, is a software development technique aimed at improving software reliability. The core idea is to independently develop multiple versions of a software component, each with the same functionality but potentially different algorithms, data structures, or programming languages. These versions are then executed concurrently, and their outputs are compared. If the outputs differ, a voting mechanism is used to determine the correct result.
The primary goal of N-version programming is to mitigate the impact of design faults and implementation errors.
However, N-version programming also has its limitations. The development of multiple versions requires significant additional resources,
In practice, N-version programming is often combined with other fault-tolerance techniques, such as recovery blocks and