Conclusion
User interface uniformity (for digital libraries) really does need to be a priority. Direct manipulation approach is an important start. Need better (speed) performance and solutions to screen real estate problems: Hybrid text/GUI solutions?
Organizing/exploring results is a commercial weak spot
Metadata requires concerted community effort to bring out the best for digital libraries
Want productive blend of WWW and traditional library culture
URL of paper: http://www-diglib.stanford.edu
Look for report SIDL-WP-1998-0096