title: How to measure the QoS of a web-based EHRs system: development of an instrument.
abstract: The quality of service (QoS) can be treated as a set of concepts whose satisfaction/dissatisfaction generates a global positive/negative vision about the service provided by any application. The different nature of the services and its features require an analysis of the factors that have the greatest influence on the users' opinion and, therefore, measuring the quality of service in each application requires a specific instrument. This paper will introduce an instrument to measure the QoS offered to users by a general Web application for Electronic Health Records (EHRs). The collection of opinions from a pilot sample and the performance of an explanatory factor analysis will bring together the factors that best sum up the quality of an EHRs application. Subsequently, a confirmatory factor analysis will be performed to make the study reliable and, as its name suggests, to confirm that indeed the structure of the instrument developed measures the QoS in accordance with the requirements of the users.
authors.affiliation: Department of Signal Theory and Communications, University of Valladolid, Paseo de Belén, 15, 47011 Valladolid, Spain. isator@tel.uva.es
authors.forename: Isabel
authors.initials: I
authors.lastname: de la Torre-Díez
authors.forename: Miguel
authors.initials: M
authors.lastname: López-Coronado
authors.forename: Joel J P C
authors.initials: JJ
authors.lastname: Rodrigues
mesh_terms: D057286:Electronic Health Records / Q000458:organization & administration / Q000592:standards*; D005163:Factor Analysis, Statistical; D006302:Health Services Research; D020407:Internet; D011786:Quality Control; D019984:Quality Indicators, Health Care; D057233:Radio Frequency Identification Device; D011795:Surveys and Questionnaires