Digital Libraries ’97 Second ACM International Conference on Digital Libraries Philadelphia, Penn., July 1997 Please send correspondence to: J. Alfredo Sánchez Department of Computer Systems Engineering Universidad de las Américas−Puebla AP 100 Cholula, Puebla 72820 México Phone: +52-22-29-2657 Fax: +52-22-29-22-58 email: email@example.com AGS: Introducing Agents as Services Provided by Digital Libraries J. Alfredo Sánchez, John J. Leggett, John L. Schnase Permission to make digital /hard copies of all or part of this material for personal or classroom use is granted without fee provided that the copies are not made or distributed for profit or commercial advantage, the copyright notice, the title of the publication and its date appear, and notice is given that copyright is by permission of the ACM, Inc. To copy otherwise, to republish, to post on servers or to redistribute to lists requires specific permission and/or fee. DL 97 Philadelphia PA, USA Copyright 1997 ACM 0-89791-868-1/97/7..$3.50 AGS: Introducing Agents as Services Provided by Digital Libraries J. Alfredo Sánchez John J. Leggett Center for the Study of Digital Libraries Texas A&M University College Station, TX 77843 USA firstname.lastname@example.org Department of Computer Systems Engineering Universidad de las Américas-Puebla Cholula, Puebla, 72820 México email@example.com Abstract This paper presents an architecture for digital libraries that introduces user agents as one of the services available to publishers, librarians and patrons. User agents are the fundamental component of an emerging style of human-computer interaction based on the concept of delegation and indirect management of tasks. In the agent-enabled digital library architecture, termed “AGS”, service providers define classes of agents that describe helpful tasks for patrons. Patrons, in turn, delegate work by selecting agents from the available agent classes and assigning specific tasks to be performed.