This article provides an attempt to critically analyse the issue of enterprise competitiveness and indicates a necessity of applying theory approach systems for analysing this problem. The article consists of three parts. In the first part, the authoress analyses the notion 'scope of competitiveness' and its relations to the terms of efficiency and effectiveness. Part II is an introduction to the systemic model of competitiveness. The last part shortly describes four main elements of the systemic competitiveness model: competitive advantage, competitive potential, environment of organization and competitiveness management. The authoress believes that only systemic approach allows to reach an outcome, valuable from the point of view of possibilities of application in real economic life.