The Telex system is designed for sharing mutable data in a distributed environment, particularly for collaborative applications. Users operate on their local, persistent replica of shared documents; they can work disconnected and suffer no network latency. The Telex approach to detect and correct conflicts is application independent, based on an action-constraint graph (ACG) that summarises the concurrency semantics of applications. The ACG is stored efficiently in a multilog structure that eliminates contention and is optimised for locality. Telex supports multiple applications and multi-document updates. The Telex system clearly separates system logic (which includes replication, views, undo, security, consistency, conflicts, and commitment) from application logic. An example application is a shared calendar for managing multi-user meetings; the system detects meeting conflicts and resolves them consistently.
@article{arxiv.0805.4680,
title = {Telex: Principled System Support for Write-Sharing in Collaborative Applications},
author = {Lamia Benmouffok and Jean-Michel Busca and Joan Manuel Marquès and Marc Shapiro and Pierre Sutra and Georgios Tsoukalas},
journal= {arXiv preprint arXiv:0805.4680},
year = {2008}
}