In the diploma thesis an information system development plan was made for a company that manafactures and sells cosometics. With today's global trends and the strengthening of competition, it is necessary to take advantage of the fast development of technology for the advancement and informatization of business processes. The company is dealt with a large amount of data that needs adequate storage and knowing how to apply. The biggest problem is found in finding the right information and using it at proper timing. It is necessary to introduce the information system, in order for easier management and decision making. Product quality and brand image are built on knowledge that lies behind the great assortiment of its own recipes. The main goal in diploma thesis is to shape an optimal solution of the information system development plan. For the purpose of research an interview was made with employees in order to define business processes and data classes. The company is shown as a business system through a mission, vision, goals and development plans. For goal purposes the current functionality and structure of the existing information system were examined, in order to make a plan for the future desired state. A form of a table was made based on information received from an interview about processes. Possible subsystems were defined and the best possible solution was chosen. There was made an estimate of the cost and feasibility of the information system. It can be concluded that the company needs a unique information systems given by the number of processes and the complexity of business. It is important to have preparation and readiness for employees to its implementation and application in order to make further progress on the market.