This paper proposes a multi-dimensional framework approach to defining the System of Interest (SOI) for System of Systems (SoS). A number of dimensions are described in detail, enabling development of a more comprehensive model that illustrates the relationships between these dimensions in SoS. The resultant framework model is evaluated using 2 practical case studies in the domains of Defence and ICT to indicate the applicability and suitability of the proposed approach. The potential benefits of the framework are described within the context of the case studies, in conjunction with the limitations of this initial framework. A brief description of intended further research is provided giving some insight into future development of the framework.

Systems of SystemsEngineering constitutes a major challenge for the 21 st Century and research into this topic has become an imperative. The Support Action, T-AREA-SoS has been initiated by the European Commission to develop a research agenda in Systems of Systems (SoS) that will inform future investment in this area. Through an extensive consultation and review, a number of SoS capability gaps have been identified. Through structuring and subsequent consultation, these have been developed into twelve research themes the detailed areas of which are mapped to the three SoS characteristics of control, evolution, and emergent behaviour. A framework is presented through which researchers can develop a research campaign in SoS.

Attempts to apply conventional rule-based expert systems to legal problem-solving raise seemingly insurmountable obstacles. The authors analyse the key challenges of developing a legal expert system by reference to a case study of issues arising in their prototype system, the JAES project. This paper explores the advantages of exploiting three alternative approaches-namely: case-based reasoning, blackboard architecture, and service-oriented architecture for the next generation of legal expert systems. The authors advocate the use of hybrid architecture to address the complexity and dynamic nature of the legal domain. The paper evaluates the extent to which these enhancements can meet the special complexities of the legal domain.

Design of a web-based thesaurus for Systems of Systems Engineering (SoSE) discipline is presented in this article. Due to lack of linguistic clarity within this emerging discipline, there is a strong need to represent and interpret SoS concepts and terms to align heterogeneous models, and tools and techniques developed for SoS operations, management and its governance. A Blackboard-based systems approach is therefore used to devise a model, providing a mechanism for high level organisation and sharing of knowledge and information within the SoSE thesaurus system. To illustrate its applicability, a scenario derived from realistic use cases is provided. The potential benefits of this research are identified and a brief description of intended further work is given.

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