Hospital Information Systems (HIS) are used in every hospital in our country and these systems have been developed by different vendors. If there is a change in the HIS software used in a hospital for various reasons, all data must be transferred from the current HIS to the new HIS. Accurate, complete, consistent, reliable and rapid transfer of this transfer is important in order not to interrupt the health care provided by the hospital. The aim of this study is to introduce a data transfer model standart (VEM) between independent HISs and to explain the validations that are applied to enforce the model work correctly. In addition, we share the opinions from HIS vendors who develop VEM compatible systems. In the development process of the model, studies with data transfer experts from the HIS vendors in Turkey were performed. A validation software has been developed to check the compatibility of VEM with HIS software. In addition, a questionnaire was sent to HIS developers via e-mail and their opinions on VEM were received. Fourty six HIS developers voluntarily participated in the study, and 70% said they thought VEM helped with solving data transmission problems. As a result, it can be said that VEM has been successful in solving many problems encountered for data exchange in HIS changes in hospitals.