Home // ICONS 2012, The Seventh International Conference on Systems // View article
Authors:
Dirk van der Linden
Herwig Mannaert
Keywords: Normalized Systems; Evolvability; Systems Theory; Modularity; Industrial Automation.
Abstract:
Automation systems in the domains of smart grids, digital factories and modern process systems struggle to follow the permanent shift of their requirements. Hence, the most prominent non-functional requirement of a system seems to be evolvability. The recently proposed Normalized Systems theory has formulated constraints on the modular structure of software architecture in order to engineer evolvable systems. In this context, evolvability is related to systems theory stability as it is defined as the possibility to perform additional anticipated changes to the system of which the output remains bounded, even if an unlimited systems evolution is assumed. In this analysis, one considered the context of compile-time. However, this view becomes far more complex during run-time deployment, because some modules have several instances, others only one. The amount and complexity of connections during run-time is not straightforward visualizeable. In this paper, we introduce two new theorems, which are complementary with the existing four, to achieve a stateful run-time deployment.
Pages: 67 to 72
Copyright: Copyright (c) IARIA, 2012
Publication date: February 29, 2012
Published in: conference
ISSN: 2308-4243
ISBN: 978-1-61208-184-7
Location: Saint Gilles, Reunion
Dates: from February 29, 2012 to March 5, 2012