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Exploring the Future of Eclipse Modeling: Web and Semantic Collaboration

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Presentation at the Modeling Symposium at EclipseCon Europe 2016

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Exploring the Future of Eclipse Modeling: Web and Semantic Collaboration

  1. 1. Semantic Collaboration for Eclipse Modeling Budapest University of Technology and Economics Department of Measurement and Information Systems Exploring the future of Eclipse Modeling: Semantic Collaboration Gábor Bergmann1,2, Csaba Debreceni1,2, István Ráth1,3 and Dániel Varró1,2 1 Budapest University of Technology and Economics 2 MTA-BME Lendület Research Group on Cyber-Physical Systems 3 IncQuery Labs Ltd.
  2. 2. Semantic Collaboration for Eclipse Modeling Motivation  Growing interest in collaborative modeling  Difficult problem o Allow a group of modeling users work together seamlessly • Not block each other • But minimize the impact of conflicts o On complex modeling scenarios (e.g. Systems Engineering) • Logical hierarchies • File structures o While not necessarily seeing everything • Internal policies • External organizational boundaries (OEMS, subcontractors, ...)
  3. 3. Semantic Collaboration for Eclipse Modeling What’s wrong today?  Offline team support for Modeling still has gaps o Usability o Scalability o Rigidity • Access control tied to file system structure through file- centric legacy mechanisms (e.g. SVN ACLs, Git addons) • Model re-fragmentation is not easy  Online collaboration (CDO, EMFStore) not always a solution o Requires (deep) modification of modeling tools o “Exotic” infrastructure overhead (databases) o Does not interplay well with file-centric processes Challenge: How to provide secure access for collaboration, while retaining compatibility with traditional VCS?  Access control aspects are interleaved with model fragmentation policies  Access policy changes are not easy to follow through (to say the least)
  4. 4. Semantic Collaboration for Eclipse Modeling  Fine-grained access control o Additional access restrictions • Complementing file-based solutions – Works together with SVN/Git ACLs • Filtering and obfuscation o Grant separate permissions on each • Object (class instance) • Slot (attribute instance) • Link (reference instance) Our vision for access control for models Challenge: How to identify assets in rule-based policy? …rules may evaluate the context of the model element via model queries Challenge: How to express policy for so many assets? …use access rules instead of individual permission assignment assets
  5. 5. Semantic Collaboration for Eclipse Modeling How model repositories work M V1 V2 Filtered views Gold model Synchronization User A User B Database DB transactions In-memory copies CDO/EMFStore- aware tool
  6. 6. Semantic Collaboration for Eclipse Modeling Our approach M V1 V2 Filtered views Gold model Synchronization User A User B VCS gold repo VCS operations (checkout, commit, …) Local files in working copy Your standard tool Server-side bidirectional model transformations (VIATRA) • Integrated via VCS hooks • Scales well to large models • New ACL • Extends existing ACLs • Context-aware, based on model queries V1 V2 VCS front repos All standard VCS features work out of the box! • Locking • Model-aware • History • Compare/merge
  7. 7. Semantic Collaboration for Eclipse Modeling DEMO SCREENCAST https://youtu.be/WJZOascRMno
  8. 8. Semantic Collaboration for Eclipse Modeling Conclusions  New semantic collaborative modeling framework o Semantic = ACL „understands” the contents of model files o Distinguished paper at MODELS 2016: https://goo.gl/hYWLhb  SVN/Git o Additional flexibility (fine-grained rule-based model-aware ACL) o Security through server-side enforcement o Without changing existing modeling and VCS tools  Online collaboration on the web o RAP o Future plans: Che, others (WMF? even CDO/EMFStore is possible)  We want to bring this to Eclipse, looking for interested parties and contributors! o Code, demos: https://github.com/FTSRG/mondo-collab-framework o Project proposal draft: http://goo.gl/ZndnQZ

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