DEFINITION: Digital Public Service Catalogue ABB is a Business Object indexing inventory of active digital public services, and their descriptions, that are provided by a public administration. This ABB is a key interoperability enabler (*) for sharing/PROVISIONING and reusing/CONSUMING of front-office public services. Source: ISA2 Core Vocabularies (https://joinup.ec.europa.eu/catalogue/distribution/cpsv-ap-specification-v20-pdf) (*)DECISION (EU) 2015/2240 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 25 November 2015 establishing a programme on interoperability solutions and common frameworks for European public administrations, businesses and citizens (ISA2 programme) as a means for modernising the public sector. Syn. Public Service Registry, Public Service Inventory INTEROPERABILITY SALIENCY: IoP Dimension: Structural IoP The Digital Public Service Catalogue ABB is a key interoperability enabler because it supports to achieve organisational structural interoperability by ensuring the provision/consumption of front-office digital public services. Catalogues are also key element of the EIF "Integrated Public Service Governance" conceptual model. According to EIF Recommendation 44: "Put in place catalogues of public services, public data, and interoperability solutions and use common models for describing them." EXAMPLES: The following implementation is an example on how this specific Architecture Building Block (ABB) can be instantiated as a Solution Building Block (SBB): FEDICT service catalogue FEDICT, part of the Federal Public Service Policy and Support of Belgium, offers a public service catalogue. Here are a few examples of the offered services: Company data (company information and certificates), Digiflow (access to online certificates), E-mail Relay (relay of e-mail to and from the federal public services and institutions, as a protection to viruses and spam), eBirth (birth online notification and transfer of statistics), eDepot (for notaries), Federal Authentication Service (authentication of individuals for access to online government applications), etc. Source: (http://www.fedict.belgium.be/en/service_catalogue)