The effectiveness of the activities of any organization is highly dependent on what information support is used. To date, the issue of choosing software for enterprises still does not have a high-quality study. In this regard, the question arises of evaluating the effectiveness of the implementation of the information system at enterprises. The article discusses four groups of evaluation methods: cost methods; methods for evaluating the direct result; methods based on the evaluation of the ideality of the process; qualimetric methods.