In the RFID-enabled picking and shipping processes (Part B, Figure 2), the picking process is triggered by the electronic picking order (e-Pick). As soon as this e-Pick is received, a set of actions is performed, namely manual actions (e.g. attach b-Tag on the battery, pick the battery, etc.) and automatic actions (e.g. print number of tag required x-b-Tag, validate the match between the b-Tag and picking order, etc.).
Source: wiktionary