Title of the Poster. “Digital library services and their impact with reference to a developing country: The case of the Faculty of Health Sciences library, Aga Khan University”. 1). Syed Attaullah Shah, 2). Prof. Dr. Shahid Masud Baig 3). Azra Qureshi Introduction. In any institution for teaching, education and research ; the library and its ancillary services are expected to play an important role. Digital libraries are now in the fore front to provide more appropriate information in less time with ease of access. A digital library is more near to user’s minds, and provides a bridge between the sea of information and user’s need. We explored the new sources and media of information. Material in different formats i.e. audio, video, image etc. especially in CDs are more important to understand medical information. Non-book material i.e. reports, conference papers, introductory material etc. are also very useful to cope with latest developments in the medical field. New services are evaluated by the users of AKU Library by conducting a Users survey. So that the users must be competent in their ability at the point of service to distill data into useful information to access growing information in different formats, for meeting the ever increasing patient care needs. As the result of the survey, we could refresh the systems and services and the library users will also know and access required information and there is no need to waste time and money for visiting other libraries and to acquire needed information. Objective: The objective of this poster is to discuss the developments in repository, User Interface and Operational systems of the library and its impact on the users. Methodology and Procedural Detail: The purpose of poster is to share the expanding designed models, new developmental practices and their evaluation at AKU library’s services for the digital library. Repository Tier: Two types of repository 1) Store the information about the software agents such as programs and the symbols and identifications of data formats. 2) Store the full text data of library holdings such as audio, video, image, text and further links separately in a server, from the CDs and other recourses. In non-Book material such as the citation of reports, introductory material, conference papers, dissertations etc…by using Informix and SQL server databases running under UNIX and Windows respectively. User Interface Tier: two major types of user interface module are designed according to the search requirements of the users. 1) CD Library, it deals to retrieve data by author, title, keyword etc…form different formats of material such as audio, video, text, image etc…with out opening and browsing any CD with the capability of running the full document by using Active Server Pages (ASP). 2) Non-book material, it deals the documents which were under utilized before this system. By this new system all type of gray and fugitive material can be accessed. For non-book library a separate classification scheme is designed and applied successfully. A manual multi approaches storage and retrieval process system is designed to physically access the material by using different searching tools via material type, subject heading, organization and Call no. (SDI) Service - Operational Tier: In the system the software matches acquiring documents with the users preference and generate and send an to the selected users. To run this Selective Dissemination of Information (SDI) service Informix is using under UNIX. Conclusion: Three major digital services are initiated at AKU library during the year 2004, 1) CD library. 2) Non-book material and 3) SDI Service. After few months use of these new electronic services; a survey of library users was conducted. As the result of survey, we evaluated new services and collected statistics of increasing number of users of digital contents. Benefits for health practitioners, students and researchers, and some problems with suggestions are also discussed. Keywords: Digital Library, CD Library, Non-book Material, SDI (Selective Dissemination of Information) Services, User Services Non Book Material Printed Material Conferences Annual Rep. Workshops Seminars Rep/Abs/ Papers Manuals Introductory Material Leaflets Pamphlets Catalogs Booklets Brochures Project/Plan Res./Tech. Flyers Images Atlases Loose Material Microforms Photos Manuscripts Slides A Software for Cataloging of Non book Material has been Prepared and data entry is being done. Through this software users can search all the available Documents through subject, title, Organization, and material type etc. Atlases Others Book Ordered Books received in the library Faculty Books received in the System Repository Tier : By using Informix and SQL server databases running under UNIX and Windows respectively. Store the selected subject headings against the users account. A survey was conducted among the faculty and their Subject areas of interest were collected And entered In the Computer The software matches acquired documents with the user’s preferences Within no time, the Information of newly arrived books to the relevant faculty Compiled and Sent to Vendor By Selecting the topic, it will automatically open The CD/s & search through the contents & Sub Contents by picking up the keyword/s and will display video, images and text. etc… these features can be accessed without any setup and installation. Network CDs by publisher are used for CD library Electronic Material Audio Floppies CDs E-Journals E-Books Databases Reference Companion Tutorials Manuals Videos Companion Documentaries Conferences Lectures Text Audio Video Web links Image Digital library services and their impact with reference to a developing country: