Synchronous collaborative development of UML models on the Internet

S. C.F. Chan, P. S.H. Lee, Vincent To Yee Ng, A. T.S. Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

5 Citations (Scopus)


This paper discusses the synchronous viewing and editing of object-oriented models based on the Unified Modeling Language (UML) by multiple users on the internet. Each user works on a copy of the model, which is continuously synchronized with the master copy on a central server. A group of users can work together in the common single writer-multiple reader mode, controlled by a token that can be passed from user to user. Alternatively, different users can lock different parts of the model for exclusive editing while the changes are visible to all other users. One can improve on basic granular locking by considering the semantics of the graphical notation. A semantics-based locking mechanism has been designed and implemented for UML class diagrams in order to allow users to collaborate more effectively. A prototype collaborative UML (CUML) editing system has been implemented in Java to validate the design.
Original languageEnglish
Pages (from-to)111-119
Number of pages9
JournalConcurrent Engineering Research and Applications
Issue number2
Publication statusPublished - 1 Jan 2001


  • Collaborative work
  • Internet
  • Locking
  • UML

ASJC Scopus subject areas

  • Modelling and Simulation
  • General Engineering
  • Computer Science Applications


Dive into the research topics of 'Synchronous collaborative development of UML models on the Internet'. Together they form a unique fingerprint.

Cite this