Information in the future will be produced, transmitted, and consumed in electronic form. The
printed book will be replaced by new electronic forms and today's static, paper-based library with
its fixed indexing schemes will give way to dynamic digital libraries with flexible and efficient
mechanisms for locating, organizing, and personalizing vast amounts of multimedia information.
We will no longer be bound by the physical affordances of shelves, floors, and buildings, nor the
single conceptual library structure mapping all information by "call numbers" onto the physical
library building. Instead, we will use collaborative hypermedia library systems allowing multiple
conceptual mappings, personalization of library resources, and sharing of digital library information
spaces. Collections of all manner and type will be digitized and made widely available through
high capacity networking.
Increasingly, scholarly work involves a collaboration of geographically dispersed researchers,
teachers, and students. Scholarly work in the digital library of the future will be mediated through
coordinated access to shared information spaces. Patrons will organize their own private digital
libraries, collaborate with colleagues through shared digital libraries, and have access to huge
amounts of multimedia information in global, public digital libraries. A multitude of new media
and new data types, and common access to high-speed computer networks will revolutionize our
conceptions of books, libraries, scientific research, scholarship, learning, commerce, and
ownership.
Within the past decade the number and types of digital information sources have proliferated.
Computing system advances and the continuing networking and communications revolution have
resulted in a remarkable expansion in the ability to generate, process, and disseminate digital
information. Together, these developments have made new forms of knowledge repositories and
information delivery mechanisms feasible. Before these sources can be combined into realistic,
full-scale digital libraries, fundamental research must be performed in areas such as information
representation, presentation, and retrieval; human-computer interaction; hypermedia and hyperbase
systems; computer-supported collaborative work; distributed multimedia systems; and broadband
networking. Answering the question of how best to take advantage of these promising technologies
requires significant theoretical and empirical results from well-designed studies and experimental
prototypes set in the context of solving real problems for patrons of experimental digital library
testbeds.