I5-2 - Sedma Nacionalna Konferencija so Me|unarodno U~estvo ETAI'2005 Seventh National Conference with International Participation ETAI'2005 Ohrid

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SEARCH AND RETRIEVAL IN DISTRIBUTED DATABASES USING Z39.50 AND SOAP PROTOCOLS Krasimir Trichkov 1 , Martin Tsenov 1 , Elisaveta Trichkova 1 1 Department Hierarchical Systems, Institute of Computer and Communication, Bulgarian Academy of Sciences, Acad. G. Bonchev str. bl.2, 1113 Sofia, Bulgaria {krasi, mcenov, [email protected] Abstract - This paper aims to present architecture for search and retrieval in heterogeneous data- bases (library applications) using ANSI/NISO Z39.50 and SOAP. It specifies Z39.50 client and Z39.50 server behavior for search and retrieval across online library catalogues. In order to make all databases accessible from a single interface, they are all connected to the Internet through Z39.50/SOAP architecture. The paper examines the potential of the proposed model to enable new methods of data creation and exchange in library networks. Keywords – ANSI/NISO Z39.50, SOAP, Internet, Database, Zebra, Zap, Php/Yaz. 1. INTRODUCTION The use of data exchange on the World Wide Web is expanding rapidly as the need for application-to- application communication and interoperability grows. These services provide a standard means of network communication between different software applications involved in presenting dynamic context- driven information to the user. In order to promote interoperability and extensibility among these appli- cations, as well as to allow them to be combined in order to perform more complex operations, data ex- change standard architecture is needed. In this paper the author describes a set of requirements for data exchange method architecture for Web services. A lot of activities in today’s dynamic world concern effective information exchange. A large amount of information in an organization leads to the need of making possible to extract the necessary data and to access them everywhere and any time. To facilitate information retrieval across the diverse collections of data resources now available, a non-proprietary stan- dards-based communications protocol for distributed searching which is independent of database and com- puter environment. Z39.50 is a mature standard, widely implemented in the library community. It is beginning to solve real problems, not just for librar- ies, but also for other collecting agencies such as art galleries, museums and archives. And like the dy- namic network environment in which it is used, the standard is evolving to meet the changing needs of information creators, providers, and users. 2. DESCRIPTION OF THE PROTOCOLS 2.1. Z39.50 protocol ANSI/NISO Z39.50 [1] is the American National Standard Information Retrieval Application Service Definition and Protocol Specification for Open Sys- tems Interconnection. It defines a standard way for two computers to communicate for the purpose of information retrieval. Z39.50 makes it easier to use large information databases by standardizing the procedures and features for searching and retrieving information. Specifically, Z39.50 supports informa-
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This note was uploaded on 02/18/2010 for the course ITK ETF113L07 taught by Professor Popovskiborislav during the Spring '10 term at Pacific.

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I5-2 - Sedma Nacionalna Konferencija so Me|unarodno U~estvo ETAI'2005 Seventh National Conference with International Participation ETAI'2005 Ohrid

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