Software Engineering Institute

This report presents a taxonomy developed for the Commercial Mobile Alert Service (CMAS). The CMAS Alerting Pipeline Taxonomy is a hierarchical classification that encompasses four elements of the alerting pipeline: alert originator, Integrated Public Alert and Warning System aggregator, commercial mobile service provider infrastructure, and recipients. The taxonomy treats the alert-originator element in the most detail, identifying key features of alert-originator organizations and systems. It also identifies a limited number of features for the other three elements. The purpose of the CMAS taxonomy is to help stakeholders understand and reason about required operations. To this end, the report provides a representative scenario to ensure that the taxonomy defines the elements used in CMAS operations. The CMAS Alerting Pipeline Taxonomy will simplify some actions related to an organization's effort to integrate into CMAS. The taxonomy will simplify analysis by decomposing the CMAS Alerting Pipeline into features so that the interactions among pieces will be simpler to understand. And the taxonomy will simplify guidance by representing the domain in a manageable form for explaining a variety of situations.