Search (5 results, page 1 of 1)

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Abstract

This article revisits the debate concerning controlled and natural indexing languages, as used in searching the databases of the online hosts, in-house information retrieval systems, online public access catalogues and databases stored on CD-ROM. The debate was first formulated in the early days of information retrieval more than a century ago but, despite significant advance in technology, remains unresolved. The article divides the history of the debate into four eras. Era one was characterised by the introduction of controlled vocabulary. Era two focused on comparisons between different indexing languages in order to assess which was best. Era three saw a number of case studies of limited generalisability and a general recognition that the best search performance can be achieved by the parallel use of the two types of indexing languages. The emphasis in Era four has been on the development of end-user-based systems, including online public access catalogues and databases on CD-ROM. Recent developments in the use of expert systems techniques to support the representation of meaning may lead to systems which offer significant support to the user in end-user searching. In the meantime, however, information retrieval in practice involves a mixture of natural and controlled indexing languages used to search a wide variety of different kinds of databases

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Abstract

All information systems should contribute to the competitive position of an organization and should therefore be strategic. Strategic Information Systems Planning (SISP) is the process of establishing a programme for the implementation and use of information systems so theat the effectiveness of the firm's information resources are optimized and used to support the objectives of the organization as much as possible. SISP involves matching computer applications with the objectives and corporate strategy of the organization. Starts by exploring the nature of a strategic information system and then process to outline the basic steps and features of an SISP. Reviews the criteria to be applied in the selection of an SISP

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Date

22. 2.1999 17:50:37

Source

Online and CD-ROM review. 22(1998) no.4, S.277-279

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Date

9. 2.1997 18:44:22
22. 2.1999 17:48:45