The WEB variable enables you to define a HTML reference for each activity. This HTML reference is associated with the node corresponding to the activity. The WEB variable is a character variable and the values need to be of the form "HREF=htmlpage".

In addition, you can also store the coordinate and link information defined by the WEB= option in a SAS data set by specifying the IMAGEMAP= option in the PROC NETDRAW statement. By processing this SAS data set using a DATA step, you can generate customized HTML pages for your network diagram.