The selection of an agricultural machine may become a challenging task, because there are several variables that must be considered. Choosing the more suitable equipment to a farm is one of the most important production process steps. The purpose of this study was to develop a computational model by linear programming based on web platform to select automatically mechanized agricultural systems founded on the lowest operational cost. The software was developed in ASP.NET language and can be accessed for free by the Internet (http://www.maquinas.ufms.br). The user can select a mechanized agricultural system in a list that contains the specifications or let the system returns automatically the best option at the lowest operational cost. The developed software brought to the user via Internet a rational selection of mechanized systems, allowing the economic machinery studies, without any dedicated setup on the user's computer, which would hinder the database maintenance.
computer modeling; linear programing; machinery selection
