TCDL Bulletin
Current 2005
Volume 2   Issue 1

Francisco Alvarez-Cavazos, David A. Garza-Salazar, and Juan C. Lavariega-Jarquin
Informatics Research Center
ITESM, Campus Monterrey
Monterrey, NL, Mexico
{a00782553, dgarza, lavariega}@itesm.mx

Our Personal Digital Library System (PDLib) seeks to provide each user with a general purpose digital library (DL) and with the means to access it using most computing devices connected to the Internet – including mobile phones, PDAs and laptops – therefore granting universal access. In contrast, the traditional concept of a library was a website where documents were stored, and patrons had to use the library site in order to access document collections. Our architecture (Figure 1) addresses the personalization and universal access requirements of the mobile user, thus considering traditional DL challenges and mobile computing challenges.

For a larger view of Figure 1, click here.

The main components of the architecture are the client-side applications, the data server and the mobile communication middleware (Figure 2).

For a larger view of Figure 2, click here.

Personal libraries are provided by the server tier of PDLib whose main component is its digital object store: the data server, which supports the services for storage, classification and information retrieval of personal library objects (Figure 3).

For a larger view of Figure 3, click here.

PDLib's architecture also supports interoperability with other DL systems via the OAI-PMH (Open Archives Initiative Protocol for Metadata Harvesting). PDLib is targeted to support multiple device access and consequently includes software clients that have been designed to provide its users with the abstraction of a personal library from mobile and fixed devices, adapting library services to client device capabilities (Figure 4).

For a larger view of Figure 4, click here.

Our work has focused on the mobile connection support provided by the interaction of mobile clients with a mobile connection middleware. A prototype implementation that exemplifies these concepts has been developed and is being extended and improved towards an open-source release.

© Copyright 2005 Francisco Alvarez-Cavazos, David A. Garza-Salazar, and Juan C. Lavariega-Jarquin
Some or all of these materials were previously published in the Proceedings of the 5th ACM/IEEE-CS Joint Conference on Digital libraries, ACM 1-58113-876-8/05/0006.

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