This article is designed to assist planners of inservice programs to broaden the range of courses and other types of activities offered within their system of training. Five basic dimensions of an inservice course must be considered: time, people, form, objectives, and sponsor. These dimensions are expanded into a comprehensive working checklist based on evidence suggesting that the items listed are those most strongly influential in determining the type and nature of a particular inservice course. A method for generating new ideas about types of courses is described based on the checklist. (JMF)