Features
+Subject management
+Castellum is a central place to collect references to all data related to a subject, e.g. so it can be deleted on request.
+Pseudonym service
+Contact details are stored in Castellum so all other databases can work with pseudonyms instead.
+Recruitment
+Castellum allows you to find potential participants from an existing pool using study specific filters.
+Appointments
+You can manage appointments for test sessions.
+++Castellum makes answering GDPR requests a breeze.
+ +