System architecture and basic principles
Article 3
1. Eurodac shall consist of: (a) a computerised central fingerprint database ("Central System") composed of: (i) a Central Unit, (ii) a Business Continuity Plan and System; (b) a communication infrastructure between the Central System and Member States that provides an encrypted virtual network dedicated to Eurodac data ("Communication Infrastructure"). 2. Each Member State shall have a single National Access Point. 3. Data on persons covered by Articles 9(1), 14(1) and 17(1) which are processed in the Central System shall be processed on behalf of the Member State of origin under the conditions set out in this Regulation and separated by appropriate technical means. 4. The rules governing Eurodac shall also apply to operations carried out by the Member States as from the transmission of data to the Central System until use is made of the results of the comparison. 5. The procedure for taking fingerprints shall be determined and applied in accordance with the national practice of the Member State concerned and in accordance with the safeguards laid down in the Charter of Fundamental Rights of the European Union, in the Convention for the Protection of Human Rights and Fundamental Freedoms and in the United Nations Convention on the Rights of the Child.