provide a conceptual framework for distinguishing important characteristics of the original expertise approach / attempts to characterize the study of expertise in the most general and domain-independent manner so that we can compare the expertise approach with a number of alternative approaches that had similar objectives / specify the nature of the original expertise approach and methodology / elaborate criteria for these [research] steps and use these criteria to discuss and review the prospects for, and limits of, more recent research on expertise (from the chapter); definition of outstanding performance and expertise: a comparison / scientific approaches to accounting for outstanding performance / the three steps of the original expertise approach (PsycINFO Database Record (c) 2007 APA, all rights reserved)