The development of this thesis work called "Web Information System and the Improvement in the Management of Marketing of Agricultural Products in the company Empresas Corporativos Iguazú S.A.C. de San José - Pacasmayo”. It has been established as the main objective to improve the processes of purchase and sale of products produced by Negocios Corporativos Iguazú S.A.C., through the development and implementation of this web computer system. Currently, Iguazú Corporate Business does not have a Commercial Management Web System, so the processes are not well defined and are developed manually; this produces that there are great losses of time in registration and control in the processes of purchase, sale and warehouse in the company. That is why a solution is presented in the present investigation, where a study based on the RUP Methodology (Rational Unified Process) has been carried ...