Skilled performers in complex environments rely heavily on heuristic s
trategies to cope with the time pressure and complexity of dynamic tas
ks. We suggest that the use of task simplification strategies based la
rgely on perception and pattern recognition is fundamental to the novi
ce-expert shift in dynamic decision making. We therefore suggest that
interface training interventions should support the development of hig
hly effective and robust heuristic strategies, rather than the develop
ment of more abstract, cognitively intensive strategies. A pair of emp
irical studies are presented that investigated the benefits of trainin
g interventions aimed at supporting perceptual and pattern-recognition
al activities in dynamic environments. Results suggest that the acquis
ition of skilled performance in dynamic environments can be accelerate
d by supporting perceptual activities in the service of dynamic decisi
on making. Implications of these results for training, aiding, and int
erface design are discussed.