-Development of lightweight methodologies- a reaction to:
Ponderous use of waterfall process
Non-intuitive, difficult-to-use CASE [Computer-Aided Software Engineering] Tools
Capability Maturity Model (done for Dept. of Defense by CMU's Software Engineering Institute)
"Heavy" application of Rational Unified Process (?)
-Great deal in common among "Light" group, many now united in identification "Agile"