Improving the creation and management of collaborative networks within the European maritime sector : an operational collaboration model for the European maritime sector

The first ever model of operational collaboration for the European maritime industry is presented, built upon the established current state-of-the art in engineering collaboration modelling and addressing key industry requirements. The requirements for operational collaboration practices in the European maritime industry were identified using three approaches: an industrial survey of 69 associations, companies and institutions in the maritime sector; an analysis of prototype collaboration tools; and through an analysis of literature. These requirements were thematically grouped and consolidated where they overlapped, and then translated into model elements and interactions between them. A model that accurately abstracts service and technology collaboration provision between companies in a variety of collaboration modes was built, and validated against a series of steps that an organisation would need to undertake, to develop a particular mode of collaboration to supports their needs. It was tested in three industrial case studies, providing encouraging feedback demonstrating successful implementation. It provides the opportunity for reassessment of the employed processes and activities, and provides a structure for improving collaborative engineering design. Whilst the research was based in the European maritime industry, the model has wider applicability within the collaborative design of complicated engineering artefacts such as automotive or aerospace

A group-centric model for collaboration with expedient insiders in multilevel systems

Abstract—An authorization model for group-centric organizational collaboration has been recently proposed wherein multiple organizations may collaborate via groups [3]. Each group is independent of all others and adheres to the formal semantics of Group-Centric Secure Information Sharing models (g-SIS) [2], [4]. Motivated by [3], in this paper, we develop a model for group-centric collaboration in which an organization forms groups to collaborate with outside consultants on specific projects. A core principle is that such outsiders cannot fit in the existing organizational access control structure as they are not “true insiders ” but rather “expedient insiders. ” In our proposed model, each group duplicates the organizational access control structure in an identical but separate copy—initially without any assignment of users or objects. The group is then populated and maintained by bringing selected true insiders, expedient insiders, and objects together to enable collaboration. The formal model consists of administrative and operational parts covering the complete life-cycle. While the general concepts are applicable regardless of the specific models used for the organizational access control structure, to be concrete we consider the specific case of multilevel systems that enforce lattice-based access control [7]

A group-centric model for collaboration with expedient insiders in multilevel systems

Abstract-An authorization model for group-centric organizational collaboration has been recently proposed wherein multiple organizations may collaborate via group