Abstract:
The most effective and feasible way to carry out the contracting of services, as well
as the purchase of goods and materials currently by the public administration is
through bidding. Tenders are processes carried out to acquire goods, as well as
contract the provision of services, always aiming at what is most beneficial to society
and to the public administration itself, prioritizing the best proposal in financial terms
and the most appropriate needs presented. Through this work, it will be possible to
know the main principles that govern this bidding procedure and also discover which
bidding modalities are employed by Brazilian law. Finally, it will be exposed criteria
and peculiarities that lead to a modality, in particular, called an invitation letter or just
an invitation, to be considered fragile in current bidding procedures.