Arguing that the production system for computer courseware has a strong impact on quality courseware development, this report offers an introduction into the relationships between instructional system design and software engineering, and investigates courseware quality as a means of identifying quality enhancement factors that can make the difference between high and low quality courseware. Background information covering the focus, approaches, and scope of the study and explaining the goals of the fact gathering trip to selected courseware development centers in the United States is followed by descriptions of 12 courseware production systems, including the overall role of authoring languages and/or systems in courseware development. The development characteristics of production systems--which are the starting point for the establishment of quality enhancement factors--are then condensed from soft data and used to classify two production systems. The quality enhancement factors identified are divided into two groups: (1) necessary factors, which include the integration of instructional knowledge into the development process, the transfer of the design ideas and concepts using an implementation environment that supports the design activities, evaluation of the implementation, commitment of staff involved in the process and use of a team strategy, and the establishment of good communications among staff; and (2) desirable factors, which include working with a programmer who has knowledge of the subject matter and who also has experience. The need for additional research to refine these factors is noted, and more than 50 references and a list of persons interviewed at the various sites are provided. (Author/EW)