Government procurement refers to government at all levels in order to carry out day-to-day governmental activities or to provide services to the public, under the supervision of the financial, in a statutory manner and procedures, through open tendering, fair competition, by the financial sector in the form of direct payment to the supplier, from the domestic and foreign markets for government departments or Affiliated groups to purchase goods, works and labor behavior.
There are three types of government procurement: goods, services, and works.
Government procurement generally has three models:
1, centralized procurement model, that is, a specialized government procurement agency is responsible for all the procurement tasks of the government at this level;
2, decentralized procurement< model, that is, by the expenditure of the procurement unit to purchase their own;
3, semi-centralized and semi-decentralized procurement model, that is, a specialized government procurement agency is responsible for some of the items of the procurement, while the rest of the unit by the units of their own procurement.