Strolling Down The Garden Path: Error Prone Tasks in Expert Problem Solving

Problems which Induce performance that has the fa lse appearance of success (garden path problems) may be an I n e v i t a b l e consequence of the need ( I n both human and computer problem so lv ing systems) to create abs t rac t knowledge representat ions In order to make problem so lv ing e f f i c i e n t . An example is presented from s domain of physics problem so lv ing tasks in which a h i e r a r c h i c a l o rgan isa t ion of l i n e s of reasoning leads to e r ro r s of the garden path type. Several aspects of a possib le model of the problem so lv ing process In these tasks are b r i e f l y o u t l i n e d .