This research process began in the diploma in database made in the cooperative University of Colombia; the study continued this work in SME companies that have used the resource ERP software to improve productivity and to improve them in each department that exist in the company. Thus, it was decided to make a fond research companies who have already had some experience with ERP software and see what happened at the time of its implementation, see what were the advantages, disadvantages, its objectives, the degree of acceptance of software when you deploy and use. Similarly, also I make a characterization of some ERP software open source world, where he was chosen which is the best that could be implemented in SMEs, that I throw as a result there are two ERP software are the most chosen in the market such as SAP ERP AND ERP JD Edwards Enterprise One