Assessment of Data Quality in Web Sites: Towards a Model (original) (raw)

A model for the evaluation of data quality in health unit websites

Health Informatics Journal, 2015

This article presents a research work, the goal of which was to achieve a model for the evaluation of data quality in institutional websites of health units in a broad and balanced way. We have carried out a literature review of the available approaches for the evaluation of website content quality, in order to identify the most recurrent dimensions and attributes, and we have also carried out a Delphi method process with experts in order to reach an adequate set of attributes and their respective weights for the measurement of content quality. The results obtained revealed a high level of consensus among the experts who participated in the Delphi process. In addition, the different statistical analysis and techniques implemented are robust and attach confidence to our results and consequent model obtained.

Towards a model for the measurement of data quality in websites

New Review of Hypermedia and Multimedia, 2014

Websites are, nowadays, the face of institutions, but they are often neglected, especially when it comes to contents. In the present paper, we put forth an investigation work whose final goal is the development of a model for the measurement of data quality in institutional websites for health units. To that end, we have carried out a bibliographic review of the available approaches for the evaluation of website content quality, in order to identify the most recurrent dimensions and the attributes, and we are currently carrying out a Delphi Method process, presently in its second stage, with the purpose of reaching an adequate set of attributes for the measurement of content quality.

A framework for developing better instruments to measure web based health information quality

2010

With the Internet becoming a growing source of health information, evaluating the quality of the webbased health information is essential. A number of consumer-oriented instruments were designed to assess the quality of health information. However, existent tools are incomprehensive, unvalidated, not easy to use, and difficult to understand. The main objective of this study is to provide a framework for systematically developing validated and usable instruments to evaluate the quality of web-based health information. The framework incorporates item-to-total correlation and factor analysis. Next, weighting scores for the quality criteria are assigned based on the application of the Kano model to classify quality criteria as basic, performance or attractive. The development process ends with testing the instrument in terms of its usability, readability, reliability and validity. Among the implications and contributions of this research is improving the quality of the evaluation instru...

Web Quality Assurance of Information in Healthcare

Studies in Health Technology and Informatics

Health service delivery systems and ehealth applications are facing an ever-increasing pressure to improve the quality of their services to patients. The evolution in the way of interaction between health care providers and the patients is the basis for the collaborative internet and frames the transition from Web 2.0 to next Web versions. In this study, we are searching for solutions for quality assurance of information for the user. The survey has shown the need for an integrated policy on the quality of information published on health-related websites, while on the other hand it highlights the important role of upcoming Web technologies.

A Framework for Developing Better Instruments to Measure Web-Based Health Information Quality (Research-in-Progress)

With the Internet becoming a growing source of health information, evaluating the quality of the web-based health information is essential. A number of consumer-oriented instruments were designed to assess the quality of health information. However, existent tools are incomprehensive, unvalidated, not easy to use, and difficult to understand. The main objective of this study is to provide a framework for systematically developing validated and usable instruments to evaluate the quality of web-based health information. The framework incorporates item-to-total correlation and factor analysis. Next, weighting scores for the quality criteria are assigned based on the application of the Kano model to classify quality criteria as basic, performance or attractive. The development process ends with testing the instrument in terms of its usability, readability, reliability and validity. Among the implications and contributions of this research is improving the quality of the evaluation instr...

A proposal for a set of attributes relevant for Web portal data quality

Software Quality Journal, 2008

Data Quality is a critical issue in today’s interconnected society. Advances in technology are making the use of the Internet an ever-growing phenomenon and we are witnessing the creation of a great variety of applications such as Web Portals. These applications are important data sources and/or means of accessing information which many people use to make decisions or to carry out tasks. Quality is a very important factor in any software product and also in data. As quality is a wide concept, quality models are usually used to assess the quality of a software product. From the software point of view there is a widely accepted standard proposed by ISO/IEC (the ISO/IEC 9126) which proposes a quality model for software products. However, until now a similar proposal for data quality has not existed. Although we have found some proposals of data quality models, some of them working as “de facto” standards, none of them focus specifically on web portal data quality and the user’s perspective. In this paper, we propose a set of 33 attributes which are relevant for portal data quality. These have been obtained from a revision of literature and a validation process carried out by means of a survey. Although these attributes do not conform to a usable model, we think that it might be considered as a good starting point for constructing one.

A student perspective into information quality of web sites

2017

As organizations have become aware of the strategic importance of websites, the trend to use websites for various purposes has increased in domains such as education, health, government and business. However, organizations seeking to obtain benefits from their websites need to create and maintain websites that are supporting the interaction and communication of the organization with their users. The purpose of the study was to investigate the information quality of a website. A set of information quality indicators including accuracy, timelines, easy understanding, organization, consistent representation and easy navigation, were divided into four categories and evaluated in this study. For this purpose, an extensive study of the literature on existing quality evaluation models, essential website’ success factors and criteria was conducted to identify necessary quality factors, subfactors and criteria. An evaluation framework consisting of five factors (content, usability, reliabili...

The Health Web Sites Importance as Justification for the Development of a Wide Evaluation Methodology of its Quality

The use of a methodology for the evaluation, comparison and quality improvement of Health Web Sites is justified by its widespread adoption and visibility to Internet users. Due to the sensitiveness of their content and impact on users, health related sites should be evaluated. This paper proposes three different dimensions for the development of quality evaluation methodologies of Health Web Sites: contents, services and technical. We consider that these dimensions should be addressed transversally, providing a better overall evaluation.

Towards the Discovery of Data Quality Attributes for Web Portals

Lecture Notes in Computer Science, 2009

The Internet has become in a place for the exchange and publication of data. Nowadays, Web portals serve as an important means to access information. In this context, the concepts of quality in general and of data quality in particular are highly relevant. The objective of this paper is to carry out a systematic literature review (SLR) in order to discover the state-of-the art in data quality for Web portals, and to evaluate the evolution of data quality since 2006, when another SLR was carried out, and in which a PDQM (Portal Data Quality Model) was defined. As a result, 39 attributes have been considered relevant for the assessment of data quality in Web portals.