The diploma thesis "The impact of human resources system implementation on business“ studies and describes how human resources management system can affect the business of a company. Human resource management systems were created as a small part of Information and Communications Technology, an area that is developing the most nowadays and helps all branches of activity to progress. Continuous development and provision of new services to customers results with the digitalization of society, while competence of information and communication technology is an indispensable part of society in the modern age, from the earliest times. People recognize the benefits of technology, get acquainted with its services and actively participate in its development. This thesis is divided into six chapters. In elaboration, the concept of business planning is theoretically explained and it is presented how Information and Communication Technology can help business planning. Also, all the aspects people need to pay attention while making business plans and planning business resources are demonstrated. The thesis further concentrates on explaining the concept of Information and Communication Technology, presenting what it encompasses and how business information systems are developed. The methods of analysis, synthesis, compilation, concretization and specialization were used to create the thesis. In order to show the topic of the thesis on an example, for the purposes of the thesis, a survey questionnaire on satisfaction with the use of human resource management system was created. Examinees expressed their opinion on human resource management systems in general, but also on the example of the Akira system. The empirical part of the paper is based on the results obtained in the survey.