69 Abstract. For the last two decades, software architecture has been adopted as one of the main viable solutions to address the ever-increasing demands in the design and development of software systems. Nevertheless, the rapidly growing utilization of communication networks and interconnections among software systems have introduced some critical challenges, which need to be handled in order t...

in this paper, an observer based fuzzy adaptive controller (fac) is designed fora class of large scale systems with non-canonical non-affine nonlinear subsystems. it isassumed that functions of the subsystems and the interactions among subsystems areunknown. by constructing a new class of state observer for each follower, the proposedconsensus control method solves the problem of unmeasured sta...

The origins of ultra-large-scale (ULS) systems derive from social problems that are getting more and more complex, such as climatic monitoring, transportation, citizens protection and security. These factors imply a continuous increase of information systems that evolve towards ultra-dimension systems, requiring digital communication networks that allow for communication between people, between...

Software in networks, which is a special kind of applications in service-oriented computing and ultra-large-scale systems, is a complex software system deploying on network environment. Requirements of networked software pose many security problems owing to the dynamic topology structure and users’ uncertainty. How to evaluate the degree of software security in networks is a challenging problem...

Ultra-large scale (ULS) systems are becoming pervasive. They are inherently complex, which makes their design and control a challenge for traditional methods. Here we propose the design and analysis of ULS systems using measures of complexity, emergence, selforganization, and homeostasis based on information theory. These measures allow the evaluation of ULS systems and thus can be used to guid...

This paper presents two thought experiments that consider the potential benefits, concerns, and questions of evolvable software developed using Normalized Systems Theory when applied to the emerging complex, interactive project types known as cyber-physical systems (CPS), socio-technical systems (STS), ultra-large scale systems (ULS), and Complex, Large-scale, Integrated, Open Systems (CLIOS).

Context: The challenges posed by the architecting of System Systems (SoS) has motivated a significant number research efforts in area. However, literature is lacking when it comes to interplay between disciplines involved process, key factor addressing these challenges.Objective: This paper aims contribute this line confirming and extending previously characterized harmonization practices from ...