On the Role of Perception and Apperception in Ubiquitous and Pervasive Environments

摘要

Building on top of classic work on the perception of natural systems this paper addresses the role played by such quality in environments where change is the rule rather than the exception. As in natural systems, perception in software systems takes two major forms: sensory perception and awareness (also known as apperception). For each of these forms we introduce semi-formal modelsthatallowusto discussand characterize perceptionand apperceptionfailuresin software systemsevolvinginenvironments subjected to rapid and sudden changes such as those typical of ubiquitous and pervasive computing. Our models also provide us with two partial orders to compare such software systems with one another as well as with reference environments. When those environments evolve or change, or when the software themselves evolve after their environments, the above partial orders may be used to compute new environmental fits and different strategicfitsandgaininsightonthedegreeof resilienceachievedthroughthe current adaptation steps.