In this paper, we propose a new way that enables users to learn or collaborate with others
in virtual space through the Internet. The proposed system provides virtual collaboration
space called a conference which is held by user’s request with administrator’s approval and
supports users to exchange or leave their opinions using annotations over digital images in
layered architecture. The proposed system also provides multimedia content authoring
function that enables users to produce their own contents from media objects using SMIL.
From conferences, users’ opinions along with coordinate information can be recorded into
XML database in real time and unstructured data may be converted into structured data using
UIMA.