The decision-making knowledge, which consists of recognizing the problem and possible solutions dialing leading to a desired result. Very responsible and hard work since decision-making brings a way of conducting them. It is believed that the most important business decisions at all levels of management and implemented through all managerial functions. Through this work we will make the best decision under the offered as eager to get to the results of the conditions that we set. Identify any problems that might occur and how to effectively resolve. Accepting employment offers by the shopping center to set up plasterboard and finding effective solutions and business plans. Details will describe such an initiative and to develop the idea in detail in order to create a precondition for the start of the realization of a business process. Each of our activity is the result of an earlier decision-making process or the decision itself. It is therefore important that our decision is the best possible and with as few errors as the consequences of having a negative impact on our business.