"Delphi Labs" is proud to announce the immediate availability of the new episode in the "DataSnap XE" serie: "Authentication and Authorization"! This work was scheduled for last week, but I hope to be back on track and just starting to work on the this week's episode on DataSnap filters. The most challenging thing this week was to invent a possibly the most simple scenario of role-based security for a DataSnap server. I have end up with just implementing a basic authentication rule, that only...