By using a support program for a web application server according to the
present invention, it is possible to completely control an order of
executing processes of a processing flow including a transition of a
plurality of screens in a web application by a side of the server, and to
describe the processing flow as "one unit of executable program code".
Also, it is possible to record, point by point, respective items or the
like of an entry form included in an HTML document to be sent to a client
in the server as a form ledger, compare and verify the respective items
with the items in the form ledger at the time of receiving input data
corresponding to the entry form from the client, and thereby to
automatically discard an unauthorized input or the like without depending
upon the application program, by using the support program for the web
application server.