@techreport{TR-IC-98-16,
  number = {IC-98-16},
  author = {Islene Calciolari Garcia and Luiz Eduardo Buzato},
  title = {Asynchronous Construction of Consistent Global Snapshots in the Object and Action Model},
  month = {April},
  year = {1998}, 
  institution = {Institute of Computing, University of Campinas},
  note = {In English, 18 pages.
    \par\selectlanguage{english}\textbf{Abstract}
      The Object and Action Model (OAM) is well-known as an adequate
      paradigm to build fault-tolerant configurable distributed
      applications.  The reconfiguration of an application depends on
      the construction of a consistent global snapshot of its global
      state.  An atomic action that reads the states of all objects of
      the application is a simple and straightforward way to obtain
      such global snapshot, but reduces concurrency and interferes
      with the underlying computation.  In the Process and Message
      Model (PMM) consistent snapshots can be constructed
      asynchronously by a component that passively receives process
      states. This paper presents OAM-based asynchronous global
      snapshot algorithms equivalent to PMM-based algorithms, built
      using a precedence relation defined for atomic actions. Arjuna,
      an object-oriented action-based distributed programming
      environment, has been used to implement these OAM-based global
      snapshot algorithms, allowing us to conclude that our approach
      is promising.
  }
}