Layered Protocol Analysis of a Control Display Unit

Abstract

Layered Protocol Theory (LPT) has been described as a special case of Perceptual Control Theory (PCT) where its core tenet is, All communication is the control of belief. It was recognized that LPT could be used to analyse the interaction between communicating partners in the context of human-machine systems. System interface problems were identified for the Control Display Unit (CDU) in the CH-146 Griffon helicopter. This application presented a good opportunity to conduct a Layered Protocol analysis on the pilot CDU system. Aspects of LPT were discussed in detail including the LPTool, its Network View, GPG View, and Nine Element View. A pilot CDU interaction was modeled with the aid of the LPTool program. The analysis yielded a list of interaction deficiencies between pilot and CDU which supported previous observations. The deficiencies were addressed in a new interface design that would provide the necessary controls and displays so that the required messages could be successfully transmitted and interpreted.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1997
Accession Number
ADA341702

Entities

People

  • Marc A. Semprie
  • Philip S. Farrell

Organizations

  • Defence Research and Development Canada

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Aircrafts
  • Computers
  • Control Systems
  • Control Theory
  • Helicopters
  • Human Systems Integration
  • Human-Computer Interaction
  • Human-Machine Interaction
  • Human-Machine Systems
  • Information Processing
  • Navigation
  • Radio Beacons
  • Radio Communications
  • Radio Equipment
  • Radio Links
  • Word Processors

Readers

  • Aviation Science / Aeronautics.
  • Cybersecurity.
  • Team-Based Human-Centered Cognitive Task Decision Making and Information Performance.