摘要:There are many tools suitable to model systems and to generate software code from system models, but these tools do not support data validation. Available data validation tools are domain specific and require manual definition of data validation rules. Thus, the lack of the tool supporting both system modelling and automated gene-ration of data validation rules from system models is obvious. The paper discusses the use of system models repre-sented by UML in automation of data validation. The method to derive rules from UML models is presented. A fragment of UML model and derivation of rules represented in the model is demonstrated. The tool supporting proposed method is introduced and the process of automated data validation rules generation from UML models is presented.