The aim and subject of this final paper will be the analysis of office operations and correspondence in the Center for Social Welfare, which is an extremely important institution given that the services of the Center are sought by a large number of users. In order to meet the needs and interests of the citizens themselves in different areas, it is necessary to submit various acts or letters to legal entities with public authority, such as the Center for Social Welfare. The centers exercise a range of public powers. We distinguish between administrative and non-administrative procedures. The administrative procedure takes much longer than the non-administrative one. Such processes also require the implementation of office processes determined by law or regulation, and must be in accordance with them. Also, it is necessary to respect certain principles and agreements with the parties. We can say that office business is related to business processes, and that one cannot function without the other. This final paper contains five chapters. The introductory part will discuss office operations and their importance, while other parts of the paper will discuss the historical development of business, the organization of the Center for Social Welfare, the organization of operations within the institution, and the computerization of office operations. After the text of the paper, I will enclose materials that will further clarify the most important concepts, and show the types of acts and documents that are prepared and used in the Center for Social Welfare. The emphasis of this final paper will be on the Regulation on Office Operations, the basic concepts of office operations that I will analyze, and its definition. Acts, appendices, basic principles of office operations will be explained, as well as the office, archives, and the content of the acts. We can conclude that from the receipt of a written or act, a complex process is required for that act or written to reach the archives.