Proporciona los pasos y procedimientos para acceder al recurso Dentistry & Oral Sciences Source.

Proporciona los pasos y procedimientos para acceder al recurso Art & Architecture Source.

Proporciona los pasos y procedimientos para acceder al recurso Ebsco Host.

(anglicky) Database vendors are traditional significant subjects of informaton industry. Today they operate on the information market for almost 50 years, during that time their services have changed. This master thesis aims to examine and basically analyze the actual offer of their services, compare chosen features of them and to carry out evaluation of the services. The text presents database vendors and so called aggreggators and their traditional services. Also the price policy of the database vendors is mentioned. Case study of the offer of services of four database vendors is performed. The results demostrated, that traditional services of database vendors are still significant part of their product offer. But the form has changed. And some subject also offer services not typical for traditional database vendors.

This diploma thesis discusses a modern concept of information retrieval and search engines for libraries and other academic institutions. The concept named "web scale discovery" comprises of search engines, whose main characteristics lie in simplicity and user friendliness for the end users while maintaining all functional qualities of traditional research databases. Users can search in a wide variety of international research databases, and also in local sources of an institution that are combined within a large central index. The theoretical section presents definitions of web scale discovery, which conceptually set the new method of information retrieval within the field of information and library science. A graphic scheme of the basic functionality of a web scale discovery system is presented. Also discussed are requirements for a modern discovery system, an overview of the current situation in the Czech Republic, and a short characteristic of commercially available discovery systems. The theoretical part concludes with a literature review of selected foreign research, studying user satisfaction with the new solution, the impact on electronic and print resources in libraries, and usability testing. The practical part presents an original research study - usability testing of EBSCO Discovery...