In practically all technical areas, the performance of components and systems is greatly improved by their miniaturizing. The present state of the development of microsystem technology is not very advanced yet, but it allows us to get an idea of what will happen in the future. In a few years, microsystems will be able to perceive many events happening in their environment, evaluate them and convert the result into actions by means of intelligent control algorithms. Inexpensive mass production, a lower material content and low energy consumption will make the microproducts competitive economically; they will become more reliable with increasing degree of integration, and new functions will be created by using MST.