Taro Toyota1,2,3, Yuichi Wakamoto2,3, Kumiko Hayashi4 and Kiyoshi Ohnuma5 1Department of Basic Science, Graduate School of Arts and Sciences The University of Tokyo 2Research Center for Complex Systems Biology, The University of Tokyo 3Precursory Research of Embryonic Science and Technology (PRESTO) Japan Science and Technology Agency (JST) 4Department of Applied Physics, Graduate School of Eng...

Most traditional hazard analysis techniques rely on discrete failure events that do not adequately handle software intensive systems or system accidents resulting from dysfunctional interactions between system components. This paper demonstrates a methodology where a hazard analysis based on the STAMP accident model is performed together with the system development process to design for safety ...

Since last century, complex systems, complexity problems and their research have become the basic problems of systems science, social-economic science, physics, biology and so on. Complexity science is so called the science of the 21 st century. This paper looks back to the progress made on the study of complexity and complex systems in recent years and compares the Santa Fe approach with Syste...

This paper considers some specific issues relating to model-driven system management applied to complex systems. Examining dynamically coupled systems-of-systems on the one hand and highly distributed devices for service access on the other, we define a common meta-model of (semi-) automated management applicable in both domains. Taking monitoring by way of illustration, we then show how this m...

The purpose of this paper is to develop a systems theory-based construct for pathologies within the context of complex system problem formulation. Problem formulation is arguably one of the most critical phases of any endeavour to improve systems. However, there is relatively little research utilising systems theory during problem formulation. A possible extension of the systems research is the...

Current systems complexity has reached a degree that requires addressing conception and design issues while taking into account environmental, operational, social, legal and financial aspects. Therefore, one of the main challenges is the way complex systems are specified and designed. The exponential growing effort, cost and time investment of complex systems in modeling phase emphasize the nee...

We present a review of complex systems research which focuses on their similarities with self-organizing living systems. We classify the types of complex systems that relate to self-organisation and we discuss the overall requirements for self-organising modeling. As a novelty, the paper proposes a methodology to aid engineers in the design and control of adaptive complex systems. The methodolo...

While the cycle time research literature often advocates the principle of “cyclical thinking,” it also often fails to disclose important assumptions, requirements, and ramifications of the use of this tool. As a result, practitioners may encounter significant roadblocks in applying “cyclical thinking” to their cycle time reduction projects. These critical prerequisite and ensuing conditions hav...