Definition: Evidence Broker ABB is an Application Service that enables discovery, routing, and resolution of evidence requests towards competent authority endpoints capable of providing specific evidence types across federated cross-border ecosystems. Source: OOTS Source reference: https://ec.europa.eu/digital-building-blocks/wikis/display/OOTS Last modification: 2026-06-10 Identifier: http://data.europa.eu/dr8/EvidenceBrokerApplicationService LOST view: Technical view - application EIRA concept: eira:ArchitectureBuildingBlock ABB name: eira:EvidenceBrokerApplicationService Synonym: Cross-Border Evidence Discovery Broker Example: The following implementation is an example on how this specific Architecture Building Block (ABB) can be instantiated using federated evidence discovery brokers, metadata routing registries, or cross-border competent authority discovery services. Interoperability Saliency: The Evidence Broker Application Service ABB is salient for interoperability because it enables interoperable evidence discovery, routing metadata resolution, and cross-border authority matching in federated digital public service ecosystems. Additional information: The Evidence Broker does not store evidence itself and only maintains metadata and routing capabilities required to identify appropriate evidence providers. Interoperability Dimension: Behavioral IoP Additional identifier: http://data.europa.eu/dr8/EvidenceBrokerApplicationService EIF Layer: TechnicalApplication