Pragmatics and Open Problems for Inter-Schema Constraint Theory

Abstract

We consider pragmatic issues in applying constraint-based theories (such as that developed for data exchange) to a variety of problems. We identify disconnects between theoreticians and tool developers, and propose principles for creating problem units that are appropriate for tools. Our Downstream Principle then explains why automated schema mapping is a prerequisite to transitioning schema matching prototypes. Next, we compare concerns, strengths, and weaknesses of database and AI approaches to data exchange. Finally, we discuss how constrained update by business processes is a central difficulty in maintaining n-tier applications, and compare the challenges with data exchange and conventional view update.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2006
Accession Number
AD1106884

Entities

People

  • Arnon Rosenthal
  • Len Seligman

Organizations

  • MITRE Corporation

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Artificial Intelligence
  • Automation
  • Commerce
  • Communities
  • Computer Access Control
  • Computer Science
  • Computers
  • Contrast
  • Coordinate Systems
  • Data Integration
  • Databases
  • Information Systems
  • Language
  • Mediation
  • Metadata
  • Models
  • Ontologies
  • Semantics
  • Standards
  • Technology Transfer

Fields of Study

  • Computer science

Readers

  • Database Systems and Applications
  • Systems Analysis and Design