Journal of Systems Science and Systems Engineering is an international journal published bimonthly. It aims to foster new thinking and research, to help decision makers to understand the mechanism and complexity of economic, engineering, management, social and technological systems, and learn new developments in theory and practice that could help to improve the performance of systems. The Journal publishes papers that address the theory, methodology and applications relating to systems science and systems engineering; applications and practical experience of systems engineering in various fields of industry, agriculture, service sector, environment, finance, operating management, E-commerce, logistics, information systems. Technical notes solving practical problems and reviews are also welcome. .