Important Note: WebDirect is for limited access... with limited numbers of users. If you have 10...or maybe 15 users who might sign up at one time... then WebDirect might be OK for you use.
This is light weight *simultaneous* access.
If you are using FileMaker Server 14...then you can easily setup a Survey or Registration web page that fills information directly into your FileMaker database... without any programming.
The trick is to get the browser to "auto-login" to a WebDirect page.
This video will walk you through the process of setting this up.
This video also shows you how to hide the toolbar and the menu bar...so the user cannot "see" they are in FileMaker.
Very Cool!!!
Explore also Tim Dietrich FmFoo on the same subject http://timdietrich.me/blog/easyweb-update-fmfoo-announcement/