title: DB4US: A Decision Support System for Laboratory Information Management.
abstract: BACKGROUND
  Until recently, laboratory automation has focused primarily on improving hardware. Future advances are concentrated on intelligent software since laboratories performing clinical diagnostic testing require improved information systems to address their data processing needs. In this paper, we propose DB4US, an application that automates information related to laboratory quality indicators information. Currently, there is a lack of ready-to-use management quality measures. This application addresses this deficiency through the extraction, consolidation, statistical analysis, and visualization of data related to the use of demographics, reagents, and turn-around times. The design and implementation issues, as well as the technologies used for the implementation of this system, are discussed in this paper.
  
  
  OBJECTIVE
  To develop a general methodology that integrates the computation of ready-to-use management quality measures and a dashboard to easily analyze the overall performance of a laboratory, as well as automatically detect anomalies or errors. The novelty of our approach lies in the application of integrated web-based dashboards as an information management system in hospital laboratories.
  
  
  METHODS
  We propose a new methodology for laboratory information management based on the extraction, consolidation, statistical analysis, and visualization of data related to demographics, reagents, and turn-around times, offering a dashboard-like user web interface to the laboratory manager. The methodology comprises a unified data warehouse that stores and consolidates multidimensional data from different data sources. The methodology is illustrated through the implementation and validation of DB4US, a novel web application based on this methodology that constructs an interface to obtain ready-to-use indicators, and offers the possibility to drill down from high-level metrics to more detailed summaries. The offered indicators are calculated beforehand so that they are ready to use when the user needs them. The design is based on a set of different parallel processes to precalculate indicators. The application displays information related to tests, requests, samples, and turn-around times. The dashboard is designed to show the set of indicators on a single screen.
  
  
  RESULTS
  DB4US was deployed for the first time in the Hospital Costa del Sol in 2008. In our evaluation we show the positive impact of this methodology for laboratory professionals, since the use of our application has reduced the time needed for the elaboration of the different statistical indicators and has also provided information that has been used to optimize the usage of laboratory resources by the discovery of anomalies in the indicators. DB4US users benefit from Internet-based communication of results, since this information is available from any computer without having to install any additional software.
  
  
  CONCLUSIONS
  The proposed methodology and the accompanying web application, DB4US, automates the processing of information related to laboratory quality indicators and offers a novel approach for managing laboratory-related information, benefiting from an Internet-based communication mechanism. The application of this methodology has been shown to improve the usage of time, as well as other laboratory resources.
authors.affiliation: University of Malaga, Computer Sciences and Languages Department, Málaga, Spain. jmcarmona@lcc.uma.es.
authors.forename: José M
authors.initials: JM
authors.lastname: Carmona-Cejudo
authors.forename: Maria Luisa
authors.initials: ML
authors.lastname: Hortas
authors.forename: Manuel
authors.initials: M
authors.lastname: Baena-García
authors.forename: Jorge
authors.initials: J
authors.lastname: Lana-Linati
authors.forename: Carlos
authors.initials: C
authors.lastname: González
authors.forename: Maximino
authors.initials: M
authors.lastname: Redondo
authors.forename: Rafael
authors.initials: R
authors.lastname: Morales-Bueno