The CPM Procedure

TAILNODE Statement

TAILNODE variable ;

TAIL variable ;

FROM variable ;

The TAILNODE statement is required when data are input in AOA (arrow notation) format. It specifies the variable that contains the name of each node on the tail of an arc in the project network. This node is identified with the event that signals the start of the activity on that arc. The variable specified can be either a numeric or character variable since the procedure treats this variable symbolically. Each node must be uniquely defined.