Sensor Alert Service IE

This proposed OGC Interoperability Experiment (IE) is intended to create and test a candidate specification for a Sensor Alert Service (SAS). This work is part of the ongoing OGC Sensor Web Enablement (SWE) effort.

Technical Approach

The OGC Sensor Web Enablement (WSE) Working Group has recognized that a missing piece of the SWE suite of standards and proposed standards is an alert and notification mechanism that specifies how alert or “alarm” conditions are defined, detected, and made available to interested users. This IE will create a draft alert standard known as the Sensor Alert Service (SAS). Since this standard will be focused on alerts from sensors and sensor webs, it will be narrower in scope than a complete Web-wide alerting service. Therefore it is named Sensor Alert Service rather than Web Alert Service (WAS). After requirements are defined, the first efforts to define the SAS will include a survey of existing standards to see if any meet the focused needs of the SAS requirements. Standards to be considered include, but are not limited to, the OASIS Web Services-Notification suite (WS-N) and the OASIS Asynchronous Service Access Protocol (ASAP). It is our intent to embrace existing standards where appropriate and extend them if necessary, including reporting back to the respective standards bodies the changes needed to meet our needs and work to get those changes incorporated into the existing standards. Only if no existing standard meets the needs of SWE alert handling will a new standard service be defined.