A binary tree structure for detecting inventory problems. A first embodiment detects on-hand inventory problems. A second embodiment detects inventory requirements problems. Both embodiments use a binary tree whose nodes store time values and delta values. The delta values represent inventory consumers...http://www.google.com.hk/patents/US7752246?utm_source=gb-gplus-share專利 US7752246 - Binary trees for detecting inventory problems in an enterprise model
