A project charter including project mission, proposed solution, guiding principles, project scope, critical risk factors, communication plan and project team was approved in 2008. Regular project team meetings were conducted, and functional requirements and software specification documents were completed in 2009. A diagram of data flow is shown in Fig. 1. An incident screen with create, update and search utilities was designed and completed in May 2011. The incident screen collects incident, disease-and event/facility-specific data, case definition and coordinator/investigator information. Web services were applied to create basic reports (Fig. 2) , including case counts by case status, county, age group and a de-identified line list extracting from the Communicable Disease Electronic Surveillance System (CDESS). User acceptance testing was completed in July and webinar trainings to all users were completed in September 2011. The content and structure of food and waterborne outbreak investigation forms have been developed. The prototype of user interface for entering forms currently is under development.