A single individual might want to access a document under different terms and conditions, say sometimes as a law student, sometimes as an intern in a law firm. Purposes may then be derived from the interaction between the authorization classes and the desired use. To the extent that user databases representing different domains are managed differently for updating purposes, the scope of the problem grows still further. There are also considerable privacy issues to address. The diversity of backgrounds brought each of us perspectives we did not have in our home communities.
Further progress requires more interdisciplinary work.
In the digital library community, librarians and computer scientists have begun to learn to work together, but now we know that we will have to enlarge that circle considerably. It is available in hard copy from the Digital Libraries Initiative Publications Workshop Series at the University of Illinois at Urbana-Champaign, or from the Terms and Conditions home page . We will continue to update this page as a reference source for ongoing work on the technologies of terms and conditions. The opinions expressed herein are those of the authors alone, not the government.