Richard A. Johnson

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Object-oriented systems development (OOSD) is a recent innovation in software development that is often cited as a viable solution to many of the ills plaguing this critical industry. However, some express doubt about the potentially over-hyped claims of OOSD. While there are many accounts of the successful application of OOSD, widespread acceptance has not(More)
The Alexandria Digital Earth Prototype (ADEPT) Project (1999--2004) builds upon the Alexandria Digital Library Project (1994--1999) to add functions and services for undergraduate teaching to a digital library of geospatial resources. The 'Digital Learning Environment' (DLE) services are being developed and evaluated iteratively over the course of this(More)
Orthodontic records-study models, panoramic and cephalometric radiographs, and the patient's facial and intraoral photographs-are used to collect data to establish a diagnosis and to develop problem-solution lists. These records, however, can be damaged or lost when dispensed to students and need to be stored and maintained every year. An orthodontic(More)
Traditional manufacturing systems, characterized by many U.S. firms, are known for maintaining relatively high levels of raw material, work-in-process, and finished goods inventories as a hedge against uncertainty in supplier delivery and quality, production rates and quality, and customer demand. Just-in-Time (JIT) manufacturing systems, characterized by(More)