Real-Time Complex Systems

Abstract

We developed modified linear hybrid automata models for complex real-time tasks, e.g. tasks that have complex internal behaviors, may interact or synchronize in complex ways, and may have variable or not-fully-known timing characteristics. We report on investigations of partial order methods, approximation methods, abstraction methods, and use of rules to distinguish anomaly-free behaviors, that can be used to improve the tractability of model-checking for such models. We also report on use of insights gained in this work to produce new results for simpler models: anomaly-free preemptive scheduling of repetitive job shops, and a new model and scheduling algorithms for globally asynchronous distributed sample data systems.

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Document Details

Document Type
Technical Report
Publication Date
Jun 30, 2004
Accession Number
ADA426487

Entities

People

  • Steve Vestal

Organizations

  • Honeywell International, Inc.

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Algorithms
  • Application Software
  • Automata
  • Communication Systems
  • Complex Systems
  • Computer Programming
  • Computer Science
  • Computers
  • Control Systems
  • Control Systems Engineering
  • Linear Programming
  • Markov Chains
  • Markov Processes
  • Probability
  • Reliability
  • Scheduling (Production)
  • Simplex Method

Fields of Study

  • Computer science

Readers

  • Mathematical Modeling and Probability Theory.
  • Operations Research
  • Theoretical Analysis.