Abstract

Thesauri and other knowledge organization systems have been adapted to the technological environment. Currently, this represents an essential aspect of knowledge organization on the semantic web. After a long period in which thesaurus guidelines and standards were not updated, some have been revised by the governing organisations within the past five years. Consensus among international experts has resulted in publication of the first part of an ISO standard for thesauri, which provides a data model and emphasizes the interoperability process. This paper compiles the most relevant guidelines for thesauri published between the ‘80s and the ISO 25964 document. We reflect on the most relevant characteristics in this evolution and explore the most recent applications of knowledge organization systems on the Web.

Abstract

Wikipedia, the free encyclopaedia, is the first project to have been born specifically from and for the web and which has developed an authority control system for access to their information. Here, the different elements, procedures and principles which make up the Wikipedia authority control system is analysed, and a critical analogy is traced between them and those that meet the traditional authority control applied to bibliographical catalogues. From the critical comparison of both models, one wonders up to what point the authority control, constrained by the weight of tradition and by its hopeless adaptation to technology, has been surpassed by developments such as Wikipedia which are based on a philosophy of flexibility and common sense and where the rules are decided by and for the user. The enormous potential and reach of the Wikipedia authority model make it a true contender to become the normal system of access to the Semantic Web