Definition: AI Feature Service ABB is a technology service that manages, transforms, stores, and serves standardized data features used by artificial intelligence and machine learning models for training, fine-tuning, and inference. Last modification: 2026-01-26 Identifier: http://data.europa.eu/dr8/AIFeatureTechnologyService LOST view: Technical view – infrastructure EIRA concept: eira:ArchitectureBuildingBlock ABB name: eira:AIFeatureTechnologyService Additional identifier: http://data.europa.eu/dr8/AIFeatureTechnologyService Synonym: Feature Store , Feature Engineering Additional information: Features are more stable than models and form the true interoperability layer between AI systems, enabling Member States to train, fine-tune, and deploy models on common semantic foundations. Interoperability Dimension: Structural IoP EIF Layer: TechnicalInfrastructure