function of programming notation in systems design and the characteristics of a suitable language are discussed. A brief introduction i s given to a particular language (developed by the author and detailed elsewhere) which has many of the desired properties. Application of the language i s illustrated by the use of familiar examples. In any area of design, systematic design procedures are nece...

This study proposes a new complex system modeling approach by extending a bias-variance trade-off into a bias-variance-complexity trade-off framework. In the framework, the computational complexity is introduced for system modeling. For testing purposes, complex financial system data are used for modeling. Empirical results obtained reveal that this novel approach performs well in complex syste...

Using mathematical behaviour models to determine system performance is crucial to the design of complex systems. Nevertheless, during the early stages of design, it is often difficult to create behavioural models as component solutions have not been fully identified. What is known is information about the desired functionality of the system is known. Particularly for complex system design, func...

parachor based expressions (basic and mechanistic) are often used to model the experimentally observed pressure dependence of interfacial tension (ift) behaviors of complex supercritical carbon dioxide (sc-co2) and crude oil mixtures at elevated temperatures. however, such modeling requires various input data (e.g. compositions and densities of the equilibrium liquid and vapor phases, and molec...

Complex systems are often simulated to provide a basis for research or analysis. However, complex systems simulation often fails to properly demonstrate that the constructed simulation is an adequate tool to support investigation of the system under study. To address this issue we adopt and adapt argumentation techniques traditionally used for safety critical systems (SCS). Here we present part...

Networked infrastructures are complex socio-technical systems. The complexity shows in the physical networks, in the actor networks, and in their combination. This paper addresses the question how these systems should be designed. For the physical networks as well as the actor networks, design processes exist that could be applied separately. However, for these integrated networks an integrated...

This paper presents a system approach for safety management of complex system. System engineering which is an interdisciplinary field of engineering that focuses on how complex engineering projects should be designed and managed is the framework of the approach. It allows taking into account the safety requirements in system engineering process to facilitates traceability of these requirements ...

In this paper, three kinds of uncertain complex system are discussed by analyzing uncertainty of information, and their respective connotation characteristic along with the main difference and connection are elaborated from theory method, which make it convenient for people to best distinguish and handle uncertain problem. Finally, a kind of uncertain information system just born and a vital pr...

One of the important challenges for complex systems modeling is finding an appropriate thought structure for designing and implementing a suitable simulation software. In this paper, we have proposed a suitable worldview for complex systems modeling according to Capra's conceptual framework, which is based on modern cognitive theories. With this worldview, the important and fundamental concepts...