Users can generate a structure that keeps pointers to interesting documents
together. The best example is a browser's hotlist.
Such a structure is called an infostructure.
- The infostructure can contain documents that are copied from other
Web sites. A browser can retrieve the local copies much faster than the
originals. The copies must be kept synchronized with their originals.
This is done by mirroring.
- The infostructure can also contain just pointers to documents on other
Web sites. Access to these documents can be improved by means of
caching.
The existence of these documents must be verified on a regular
basis to make sure the links remain valid.
Also, when a document is modified, its content needs to be checked to
see whether its description in the infostructure is still accurate.
