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What is EDXL?
EDXL(Emergency Data Exchange Language) is a suite of XML-based messaging standards that facilitate emergency information sharing between government entities and the full range of emergency-related organizations, developed by OASIS.
What is HAVE?
HAVE(Hospital Availability Exchange) is a XML-based message standart for communication of the status of a hospital, its services, and its resources. These include bed capacity and availability, emergency department status, available service coverage, and the status of a hospital’s facility and operations.
What is EDXL-HAVE purpose?
The intent of the HAVE is to enable the exchange of information related to medical and health organizations and their resources among other hospitals, state health departments and associations, emergency managers, and other responsible emergency agencies involved in response and preparedness. It is designed for everyday use, mass disasters, and preparedness scenarios.
Why should I use it?
Because it is standard for emergency data, which is used beside and inside Sahana.
How it implemented in Sahana?
Sahana Eden and Sahana Agasti in Hospital Status Assessment module allow export and import data about hospitals in EDXL-HAVE format.
What alternative standarts are exist?
There is no direct alternatives to EDXL-HAVE, because of highly specialized standart. Other major emergency data standarts apart from EDXL are Common Alerting Protocol (CAP), The Global Justice XML Data Model (GJXDM), The National Information Exchange Model (NIEM), IEEE 1512. You can read short article about them at http://www.incident.com/cookbook/index.php/A_Roadmap_to_Emergency_Data_Standards
Who develop EDXL?
Organization for the Advancement of Structured Information Standards. Site: http://www.oasis-open.org/home/index.php
Who is using EDXL?
EDXL-HAVE is implemented by a number of commercial systems. Some systems use EDXL Sharp projects libraries(C#/.NET 3.5 implementation)
What is the limitations of EDXL-HAVE standart?
As every XML standart, EDXL-HAVE have some limitations because of predefined tags, especially time tags. For example, in EDXL-HAVE "estimate of the beds, above the current number, that could be made vacant/available within x hours" exist only for 24 and 72 hours.
Use of HAVE during a mass disaster
A major disaster has occurred in a heavily populated city. A number of casualties are reported, and the Incident Commander (IC) needs to get a common operational picture on the status of the hospitals in the region, including the resources they can offer. The IC sends a message to the regional hospitals for an update on their status and bed availability information. Hospitals receive this request, and use their respective systems to send HAVE messages. These messages contain the status of each hospital’s emergency department, bed availability information, and the hospital’s operations and facilities. These are accepted into the IC’s Consequence Incident Management System (CIMS) tool, and similar tools used by other emergency response agencies (e.g. Computer-Aided Dispatch systems used in public safety answering points).
Use of HAVE during an everyday emergency
A car crash has occurred in a rural area resulting in two badly burned victims, according to on-scene public safety personnel. Before the EMS staff reach the scene, EMS dispatch sends a request to nearby hospitals for a status of available burn services and burn beds. A few hospitals respond to the request, and use the service coverage element in the HAVE message to specify the burn coverage available at their facilities. They in turn are able to assemble their burn teams so there is no delay in treatment. Based on the acquired information, the victims are taken to the nearest hospital with the required services.
Use of HAVE for preparedness
As part of its preparedness campaign, a state hospital association conducts monthly drills that involve participating hospitals. During the drill, a fictional scenario is presented, and hospitals are asked to respond to it. During one such drill, the scenario requires that the state hospital association compile the number of ventilators (resource) that are available in the region. On the receipt of the request, hospitals send HAVE messages to the state association. Each HAVE message specifies the number of ventilators that each hospital has available.
Example of using EDXL-HAVE
<HospitalFacilityStatus> <HosptialEOCStatus>Active</HospitalEOCStatus> <HosptialEOCPlan>Active</HospitalEOCPlan> <ClinicalStatus>Full</ClinicalStatus> <DeconCapacity> <DeconCapacityStatus>Open</DeconCapacityStatus> <AmbulatoryPatientsDeconCapacity>26</AmbulatoryPatientsDeconCapacity> </DeconCapacity> <MorgueCapacity> <MorgueCapacityStatus>Open</MorgueCapacityStatus> <MorgueCapacityUnits>20</MorgueCapacityUnits> </MorgueCapacity> <FacilityStatus>Compromised</FacilityStatus> <SecurityStatus>RestrictedAccess</SecurityStatus> <Activity24Hr> <Admissions>200</Admissions> <Discharges>35</Discharges> <Deaths>42</Deaths> </Activity24Hr> </HospitalFacilityStatus>
You can read about EDXL-HAVE in wikipedia:
OASIS full EDXL-HAVE description:
EDXL-HAVE Basics Whitepaper:
EDXL-HAVE presentation about requirements: