Abstract: Contents: Maj. K.R. Rose, Foreword: What the Army Expects from Intelligent Training Systems. J. Psotka, L.D. Massey, S.A. Mutter, Introduction. Section I:Knowledge Acquisition. W.B. Johnson, Developing Expert System Knowledge Bases in Technical Training Environments. B. Means, S.P. Gott, Cognitive Task Analysis as a Basis for Tutor Development: Articulating Abstract Knowledge Representations. Y.J. Tenney, L.C. Kurland, The Development of Troubleshooting Expertise in Radar Mechanics. D. Kieras, What Mental Model Should be Taught: Choosing Instructional Content for Complex Engineered Systems. Section II:Intelligent Instructional Design. L.C. Kurland, Y.J. Tenney, Issues in Developing an Intelligent Tutor for a Real-World Domain: Training Radar Mechanics. P.L. Pirolli, J.G. Greeno, The Problem Space of Instructional Design. D.M. Russell, T.P. Moran, D.S. Jordan, The Instructional-Design Environment. S.A. MacMillan, D. Emme, M. Berkowitz, Instructional Planners: Lessons Learned. D.C. Wilkins, W.J. Clancey, B.G. Buchanan, Using and Evaluating Differential Modeling in Intelligent Tutoring and Apprentice Learning Systems. Section III:Knowledge Representation. F. Ritter, W. Feurzeig, Teaching Real-Time Tactical Thinking. T. Govindaraj, Intelligent Computer Aids for Fault Diagnosis Training of Expert Operators of Large Dynamic Systems. D.M. Russell, IDE: The Interpreter. J.R. Frederiksen, B.Y. White, A. Collins, G. Eggan, Intelligent Tutoring Systems for Electronic Troubleshooting. L.D. Massey, J. de Bruin, B. Roberts, A Training System for Radar Maintenance. Section IV:Intelligent Tutoring Architectures. J.G. Bonar, R. Cunningham, Bridge: Tutoring the Programming Process. W. Feurzeig, F. Ritter, Understanding Reflective Problem Solving. D. Frye, D.C. Littman, E. Soloway, The Next Wave of Problems in ITS: Confronting the "User Issues" of Interface Design and System Evaluation. D.M. Towne, A. Munro, The Intelligent Maintenance Training System.