A fuzzy linguistic model to evaluate the quality of Library 2.0 functionalities

•Quality evaluation model of the Library 2.0 functionalities.•It uses fuzzy linguistic modeling to represent user perception.•It subsumes the LibQUAL+ methodology.•It allows for the identification of 2.0 functionalities in need of improvement.•It allows for the identification of 2.0 functionalities outstandingly satisfied by the library.

Libraries incessantly undergo change determined by evolving user needs. These are often induced by the emergence of previously unavailable tools. Web 2.0 represents an example of such a need-shifting technology, which has led to an embrace of new user interactivity services for many library websites, thus coined Library 2.0. This paradigm shift calls for new evaluation models to include the implementation of Web 2.0 technologies. The aim of this paper is to present such a model, and to evaluate the quality of Library 2.0 functionalities, measuring the quality of the 2.0 services offered through the websites based on user perception. We adopt fuzzy linguistic modeling to represent user perception, and apply aggregation operations to linguistic labels in order to evaluate the quality of the new services. Furthermore, our model subsumes the LibQUAL+ methodology, allowing for the identification of specific 2.0 functionalities in need of improvement and of those outstandingly satisfied by the system.