The information in EDES can be stored as text files (primary information entries) and as binary files (attachments).
The EDES Administrator or an eligible user can create a topic outline of any complexity and depth with any number of entries per any topic/sub-topic.
Security is controlled by the EDES Administrator who specifies for each user a username, password and assigned access rights.
EDES also supports a CHAT mode -- real time, interactive discussion -- between users.
Accessing EDES from a remote location does not require any client software except for Telnet capabilities over the Internet.
A short length of the course (8 parts), its review character, a lecture format suitable for e-mail correspondence with simultaneous Telnet access to EDES, direct contact with the course instructor -- all this made it easy to enter the world of distance education.