Article 4
1. The Commission shall coordinate the modification, extension and operation of the Union and non-Union components of the computerised system, and in particular: (a) the infrastructure and tools needed to guarantee the computerised system’s internal links and overall interoperability; (b) the development of a security policy of the highest standard possible in order to prevent unauthorised access to data and to guarantee the integrity of the computerised system; (c) the instruments for the exploitation of data to combat fraud. 2. To achieve the aims set out in paragraph 1, the Commission shall conclude the necessary contracts for the modification and extension of the Union components of the computerised system and shall, in cooperation with the Member States meeting within the Committee referred to in Article 7(1), draw up a master plan and management plans required for the modification, extension and operation of the computerised system. The master plan and the management plans shall specify the initial and routine tasks which the Commission and each Member State are to perform. The management plans shall specify the completion dates for the tasks required for carrying out each project identified in the master plan.