ArticleCharacteristics, Desired Functionalities, and Datasets of State Web-based Data Query SystemsFriedman, Daniel J. PhD; Parrish, R. Gibson II MDAuthor Information Principal, Population and Public Health Information Services, Brookline, Massachusetts (Friedman). Adjunct Associate Professor, Department of Family and Community Medicine, Dartmouth Medical School (Parrish). Corresponding author: Daniel J. Friedman, PhD, Population and Public Health Information Services, 12 Gorham Ave, Brookline, MA 02445 (e-mail: email@example.com). This article is based on the state Web-based Data Query Systems Summit held on March 24–25, 2005, in Providence, Rhode Island. Much of the material relating to the desired WDQS functionalities resulted from the March Summit and the associated telephone and e-mail discussions. The authors thank the participants in the WDQS Summit for their helpful comments. This project was supported in part by appointments to the Research Participation Program for the Centers for Disease Control and Prevention (CDC) administered by the Oak Ridge Institute for Social and Education through an agreement between the Department of Energy and CDC under contract number DE-AC05-00OR22750. The contents of this article are solely the responsibility of the authors and do not necessarily represent the official views of the CDC. Any misinterpretations are those of the authors alone. Journal of Public Health Management and Practice: March-April 2006 - Volume 12 - Issue 2 - p 119-129 Buy SDC AbstractIn Brief Based on a review of state public health department Web sites, this article describes Web-based Data Query Systems (WDQSs) currently used in 27 US states. In addition, functionalities of selected well-established state WDQSs are defined as major functionalities (11), subfunctionalities (21), and specific functionalities (141), on the basis of a consensus process with participants from states and national organizations in the United States and Canada. Also, on the basis of the consensus process, specific functionalities are categorized as core, enhanced, and expert. Key terms relevant to WDQSs are defined. The information contained in this article should prove useful to public health agencies developing, revising, or evaluating the WDQS. This article describes Web-based Data Query Systems (WDQSs) currently used in 27 US states and provides an overview of functionalities and datasets in 33 WDQSs available through state WDQSs. © 2006 Lippincott Williams & Wilkins, Inc.