HCIL-93-18

Potter, R.
May 1993
Watch What I Do: Programming By Demonstration, Allen Cypher, Ed., MIT Press (1993) 513-526.
HCIL-93-18
Many of the other chapters have presented advancements in programming by demonstration (PBD) by presenting PBD systems and their innovations. In other words, these chapters have presented solutions. This chapter takes another tack by discussing PBD in the context of a problem. The problem is to create a new type of programming system that overcomes the obstacles users encounter when they attempt to use present-day programming systems for just-in-time programming. This chapter defines just-in-time program ming and identifies five of these obstacles: inaccessible data and operators, the effort of entering the algorithm, limited computational generality, effort of invoking the algorithm, and risk. Just-in-time programming motivates PBD research because PBD can potentially overcome several of these obstacles.
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