Management involves storing information about other information. With different
types of media being used references to the location of the data can allow
management of diverse repositories.
URLs, images, video etc. may be referenced from a triples table of object, attribute and value.
This can be generated by Java from a mySQL table using an HTML template.
With different knowledge domains the boundaries of the meta data for each must be managed since any general ontology is not of use to experts in one field whose language is knowledge domain specific.