The architectural specification of embedded systems

One of the perspective directions of embedded computer systems design is wide usage of configuration mechanisms on all levels of their architectural organization. This leads to increased complexity of toolchains and makes it necessary to consider the embedded systems and toolchains as a whole. In the article, we present three graphic notations to work with embedded systems in this way from different viewpoints: design process as a part of computational process; embedded systems as an hierarchy of processors (real and virtual); in system engineering style.