Implementation of Data Flow Query Language on a Handheld Device

Abstract

Handheld devices have evolved significantly from mere simple organizers to more powerful handheld computers that are capable of network connectivity, giving it the ability to send e-mail, browse the World Wide Web, and query remote databases. However, hand held devices, because of its design philosophy, are limited in terms of size, memory, and processing power compared to desktop computers. This thesis investigates the use of Data Flow Query Language (DFQL) in querying local and remote databases from a handheld device. Creating Standard Query Language (SQL) queries can be a complex undertaking; and trying to create one on a handheld device with a small screen only adds to its complexity. However, by using DFQL, the user can submit queries with an easy to use graphical user interface. Although handheld devices are currently more powerful than earlier POs, they still require applications with a small footprint, which is a limiting factor for software developed. This thesis will also investigate the best division of labor between handheld device and remote servers.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2005
Accession Number
ADA433064

Entities

People

  • Mark A. Evangelista

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Basic Programming Language
  • Computer Programming
  • Computer Programs
  • Computer Science
  • Computers
  • Database Management Systems
  • Databases
  • Graphical User Interface
  • Language
  • Mobile Devices
  • Mobile Phones
  • Personal Digital Assistants
  • Programming Languages
  • Relational Databases
  • User Interface
  • Web Browsers
  • Web Service

Fields of Study

  • Computer science

Readers

  • Database Systems and Applications
  • Educational Psychology
  • Tactical Satellite Communications Systems Engineering.