TOPIC: Central User Login Integration

Please clarify how the login screen of DT Register integrates with or without Joomla login. I want to determine how many separate passwords would be needed for the scenarios below, or if they could all be integrated into a central login. I'm concerned about having too many passwords and confusing duplicate login screens.

1) No website login is available - anyone can "click" on DT Register to register for an event - At what point would they need to register Name, etc., and is this information shared in the Joomla database login, or is it separate to DT Register? If I went with this method, could I use the DT Register database sometime in the future to integrate with Joomla?

2) Website has Joomla login established for access to specific areas and/or pages. Does DT Register automatically share this information with Joomla and allow the user to complete registration? Could I hide or eliminate the DT Register login screen to avoid confusion and duplication?

3) Website has Forum with public browsing or registration to post in forum. How would login integrate?

4) Website has JomSocial with public browsing or registration to post in JomSocial. How would login integrate?

Thanks in advance for your reply.

Well, I don't need to answer all of those questions as DT Register does not even have its own login system... never has. DT Reg does not create or store user login details. You can login with Community Builder, JomSocial, core Joomla login module... doesn't matter for the sake of DT Register. It will recognize you as being logged in, regardless of what you used to do it.