KNOWLEDGE-BASED DISTRIBUTED OPERATING SYSTEM ASSISTANT

USE OF DISTRIBUTED COMPUTING IN NAVY SYSTEMS IS INCREASING. DISTRIBUTED OPERATING SYSTEMS (DOS) PROVIDE THE ADVANTAGES OF DISTRIBUTED COMPUTING TO USER APPLICATIONS. REQUIREMENTS FOR REALTIME PERFORMANCE, RELIABILITY/FAULT TOLERANCE, AND SECURITY MUST BE ADDRESSED BY A DOS. APPLICATION OF DOS TECHNOLOGY IS A COMPLICATED TASK. A KNOWLEDGE-BASED ASSIST WILL FACILITATE THE USE OF DISTRIBUTEDOPERATING SYSTEMS IN NAVY APPLICATIONS. THREE TECHNICAL OBJECTIVES WILL DEMONSTRATE THE FEASIBILITY OF A KNOWLEDGE-BASED DOS ASSISTANT: (1) DEVELOP A REFERENCE MODEL FOR DOS USAGE; (2) SHOW THAT DOS USAGE KNOWLEDGE IS AMENABLE TO KNOWLEDGE-BASED TECHNIQUES; AND (3) SHOW THAT GENERIC AND SPECIFIC DOS KNOWLEDGE CAN BE INTEGRATED. IN PHASE I THREE OBJECTIVES WILL BE ADDRESSED BY: DEVELOPING A DOS REFERENCE MODEL; DEFINING THE SCOPE AND STRUCTURE OF THE DOS USAGE KNOWLEDGE-BASE; DEVELOPING RULES FOR SELECTION OF REAL-TIME SCHEDULINGALGORITHMS; AND DEVELOPING RULE REFINEMENT TECHNIQUES TO ENSURE CONSISTENCY AND INHERITANCE AMONG DIFFERENT LEVELS OF KNOWLEDGE. PHASE I RESEARCH WILL TAKE ADVANTAGE OF EXISTING RESULTS IN KNOWLEDGE-BASED DESIGN ASSISTANTS FROM PREVIOUS SBIR PROJECTS PERFORMED FOR THE NAVY AND NASA.