1. Why a modeling language for real-time or embedded systems?

As the density of integration on a chip increases, and the general public expects ever more functionality from electronic systems, the complexity of embedded systems has risen sharply. The ITRS (International Roadmap on Semiconductors) highlights the challenge of constantly improving designer productivity.

You can't design a system based on heterogeneous, distributed hardware architectures on a chip with several billion transistors and several million lines of code using the methods of the last century.

On the software side, we have progressively moved from machine language to assembler, to structured languages, to object-oriented languages, and now to the component approach and model-driven engineering.

At the same time, hardware design has also moved up the abstraction levels, from transistor level, to logic gates,...