Four architectures of instruction

Human expertise has become the infrastructure of the Information Age economy, and scarcity is already making the news. Reported in USA Today, a study by the Information Technology Association of America predicts a growing shortage of information-technology workers this year with 850,000 jobs unfilled (April 10, 2000). In an economy based on expertise, training will continue to remain one of the critical elements of the HPT mix of interventions. Furthermore, the ubiquitous access to information and training now provided via the Internet demands effective instructional interventions to realize its potential.