The characteristics of the IT sector are, among other things, its global dissemination, as well as the interoperability of the Internet business models. These characteristics assume equality, uniformity of the following business concepts: work organization, business models, work technologies, work processes, communication and access processes, and human resource management. The IT sector, as a basic element of the information society, should be generally available and equally developed all over the world, as much as in highly developed rich societies as in developing countries, and also in underdeveloped countries of the world. Although the rate of growth and market expansion is a global phenomenon, what separates developed and undeveloped markets is the quality of the work done. One of the leading factors for achieving services/products of better quality is the respect of certain norms. Looking at the European Union (EU) region as a reference market with great IT potential, the prerequisite for joining the EU IT market is to meet the norms established in the EU. The growing IT market of Serbia requires harmonization with the EU IT sector, through the application of certain ISO standards, with the aim of free spreading beyond the borders of Serbia, primarily towards the EU market. The paper analyzes the process of harmonization of the IT sector of Serbia with the IT sector of the EU from the current implementation of the ISO standard perspective.