David Canfield Smith

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first commercial product based on PBD technology—Stagecast Creator, introduced in March 1999—enabling even children to create their own interactive stories, games, and simulations. Here, we describe this approach, offer independent evidence that it works for novices, and discuss why it works when other approaches haven't and, more important, can't. The(More)
oftware agents are our besf hope during the 1990s for obtaining more power and utility from personal computers. Agents have the potential to partiti$xzte nrtively in accomplishing tasks, rather than serving as passive tools as do today's applications. However, people do not want generic agents-they want help with lhtir jobs, their tasks, their goals. Agents(More)
We present novel empirical evidence that conflicts of interest between creditors and their borrowers have a significant impact on firm investment policy. We examine a large sample of private credit agreements between banks and public firms and find that 32% of the agreements contain an explicit restriction on the firm's capital expenditures. Creditors are(More)
x crox introduced the 8010 " Star " Information System in April of 1Y8 I. That introductton was an important event in the history of personal computing because it changed notions of how interacttve systems should be designed. Several of Star's designers. some of us responsible for the origmal dectpn and others for recent improvements, describe in this(More)
A conceptual gap exists between the # representations that people use in their minds when thinking about a problem and the representations that computers will accept when they are programmed. Introduction During the past 30 years there have been many attempts to enable ordinary people-people who are not professional programmers to program computers.(More)
In April 1981 Xerox announced the 8010 Star Information System, a new personal computer designed for office professionals who create, analyze, and distribute information. The Star user interface differs from that of other office computer systems by its emphasis on graphics, its adherence to a metaphor of a physical office, and its rigorous application of a(More)