Advanced Techniques and Tools for Secure Collaborative Modeling.
Csaba Debreceni · Repository of the Academy's Library (Library of the Hungarian Academy of Sciences) · 2017
Model-based systems engineering of critical cyberphysical systems necessitates effective collaboration between different collaborators, teams, stakeholders.Engineering artifacts stored in model repositories are concurrently developed in either offline (checkout-modify-commit) or online (GoogleDoc-style) scenario where the confidentiality and integrity of design artifacts need to be protected by access control policies.Unfortunately, traditional approaches for managing concurrent code development do not naturally extend to collaborative modeling which implies novel challenges.My research focuses on developing (i) a general secure collaboration scheme that guarantees that high-level access control policies are respected during collaboration and it can be integrated into existing version control systems (e.g.SVN) to support offline scenario; (ii) automated merging and fine-grained locking to enhance the efficiency of conflict resolution and prevention upon concurrent modification of the models; (iii) derivation and incremental maintenance of view models to provide specific focus of the designers by abstracting from unnecessary details of the underlying system model.