Diploma thesis is focused on the evaluation of marketing campaigns which are realized in the environment of telecommunication companies. The thesis' main goal is the identification, analysis and design of metrics and dimensions which can be used for evaluation of marketing campaigns benefits, and which can provide feedback in the process of new campaign definition. The solution offered in the thesis provides a tool for more effective and more reliable analysis of marketing campaigns. The analysis of the current evaluation process and a suggestion of the process modification is also part of the proposed solution. The first part of thesis explains the relation between marketing, marketing campaigns and process of campaigns evaluation. The the...