Abstract :
Provides an overview of the technical articles and features presented in this issue. In particular, the feature article "Sampling and Sampled-Data Models: The Interface Between the Continuous World and Digital Algorithms" by Graham C. Goodwin, Juan C. Ag??ero, Mauricio E. Cea Garrido, Mario E. Salgado, and Juan I. Yuz provides a tutorial on both exact and approximate sampleddata models. Interesting dynamics can occur when the sampling rate is fast relative to the process dynamics, and connections are drawn between the sampled-data model and its underlying continuous-time system under such conditions. The dynamic behavior of the states in between the sampling instances - that is, the intersample behavior - is also considered.