In this paper I will discuss Business information system, a system that includes all information necessary for management and which nowadays represents important role in companies. I will discuss about complexity of information system developement and give an overview on problems in that field. This paper is focused on structure, development, and life cycle of business information system. Goal of this paper is to explain term of information, difference between data and information, term of system, information system and business information system, along with it’s use and importance in daily management in order to make it easier to understand the topic of this paper. Business organizations can be found in different shapes today and they also condition different developments and structure of business information system. All of them are trying to improve and develop their own business information system to help them in executing numerous tasks as simply as possible. In this paper I described life cycle business information system with its phases, structures and components, development itself and the model of business information system. The paper strives to explain the purpose and function of business information system, as well as the importance and function of business information system from its very beginning until today. In the first part the basics for understanding the information system are closely explained, while the second part explains business information system through types and models. The third part explains the structure of business information system and later its development and its life cycle. The last part of this paper contains conclusion.