The paper describes progress in the development of the Advanced Instructional System's Instructional Strategy Subsystem. Described are procedures for developing the Student Evaluation Component (which includes selection and validation of preassessment and within-course measures necessary for the development of a Student Data Profile) and the Adaptive Model Component (which includes selection and validation of instructional strategies and adaptive decision models, as well as the design and development of Resource Management/Scheduling and Incentive Management Models). The results indicate that the trait-state distinction and aptitude-by-treatment interaction methodology provide useful frameworks for the development of this subsystem. (Author)