The subject of the intended public procurement is maintenance, support and development to ensure the smooth operation of the Information System (MS Dynamics AX 2012 R3 including Customizations, the Business Intelligence add-on system built on the OLAP cube, built s to other programs, MS SQL datas and others, see detailed deion in Annex No. 1 and related annexes of the Call) in accordance with legislative requirements and with the requirements resulting from the operation of this system at the Principal and the Principal's needs.