1. A Formal Definition of the Chimera Object-Oriented Data Model

   • Giovanna Guerrini
   • Elisa Bertino
   • René Bal

   OriginalPaper Pages: 5 - 40

2. Abductive Knowledge Base Updates for Contextual Reasoning

   • Ahmed Guessoum

   OriginalPaper Pages: 41 - 67

3. A Model for Query Decomposition and Answer Construction in Heterogeneous Distributed Database Systems

   • Lachlan M. Mackinnon
   • David H. Marwick
   • M. Howard Williams

   OriginalPaper Pages: 69 - 87