| Text retrieval software for the Web = Bases de datos documentales en el web: análisis del software para su publicación (2005) | |||||||||||
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| Text Retrieval Systems (TRS) are a well-known type of program in the sphere of information and documentation, especially as they are designed for the retrieval of text and cognitive documents. The main characterisitcs can be summarized as follows: they have a flexible record model (variable length fields, multiple value fields, etc.), they facilitate access to logs through reverse indexing, contain a varied set of data-recovery features, and are provided with diverse instruments for terminology control. Some of the best known and prevalent systems are CDS/ISIS, FileMaker, Knosys, and Inmagic DB/Text. Global theories of approach have been developed about them, among which we can highlight that of Sieverts and other Belgian researchers (1991-93), authors of a series of very complete and exhaustive articles that describe the characterisitics of these types of programs, elaborating a typology and presenting a very detailed evaluation of some thirty products. Subsequently, William Saffady twice (1995) (2000) realized an updated approach of TRS. In Spain, various diverse works of a global nature have been published, the most recent of which being a monograph by Abadal and Codina (2005) and Directorio español de software para la gestión bibliotecaria, documental y de contenidos ( the Spanish software directory for library, document and content management ) ( 2003), which contains descriptive data of 135 computer programs in the field indicated by its title. At a different level, we can point out the gateway CMS-Spain (www.cms-spain.com) , which contains diverse reports and studies of content management programs, among which are included references to text retrieval. TRS have enabled small and medium-sized organisations to be able to create reference-type document databases allowing users of these centres to locate and consult in depth (this refers to books, magazine articles, photographs or other types of documents). Lately, these programs we refer to have commercial computer applications (vulgarly named Web gateways) that alow consultation, from a Web browser, of the databases created with them. This enables them to significantly extend the spectrum of potential users of the databases as it is now unnecesssary to utilise local area networks to share the use of these databases, nor travel to the physical location where they are locate d. The aim of our text is to present precisely the current situation in the market of these applications, to evaluate them, and point to future tendencies. To do this, we will in the first place summarise the basic functions of these Web gateways, and then will evaluate comparatively those which are most widely used in the Spanish market. | |||||||||||
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