@techreport{TR-DCC-94-05,
  number = {DCC-94-05},
  author = {Medeiros, Claudia M. B. and Jomier, Geneviève},
  title = {Using Versions in {GIS}},
  month = {June},
  year = {1994}, 
  institution = {Department of Computer Science, University of Campinas},
  note = {In English, 22 pages.
    \par\selectlanguage{english}\textbf{Abstract}
      Geographic information systems GIS have become important
      tools in public planning activities (e.g, in environmental or
      utility management).  This type of activity requires the creation
      and management of alternative scenarios, as well as analysis of
      temporal data evolution.  Existing systems provide limited support
      for these operations, and appropriate tools are yet to be
      developed.
    \par
      This paper presents a solution to this problem.  This solution is
      based on managing temporal data and alternatives using the DBV
      version mechanism.  It provides efficient handling and
      storage of versions, and supports the creation of alternatives for
      decision-making activities.
    \par
      A reduced version of this report appeared in the Proceedings of
      the DEXA'94 Conference --- 5th International Conference on
      Database and Expert Systems Applications, Athens, Greece.
  }
}