Instructional Development or Instructional Design (ID) is training design. ID is associated with the systematic approach of analyzing human performance problems, identifying the underlying causes of those problems or gaps in performance, choosing solutions that address performance gaps, and implementing interventions such as training, performance support tools, organizational restructure, and employee reward programs.

According to Gilley, Eggland, and Gilley (1989), the instructional design process consists of seven interrelated phases with each phase serving as a basis for the others. The seven phases are philosophy of teaching and learning; organizational, performance, and needs analysis; feedback; program design; program development; evaluation; and accountability.