The UML modeling language is a set of methods that describe the dynamic and structural properties and is used to evaluate the structure of a systems architecture. This modeling language presents several types of predefined diagrams that have the role of synthesizing in visual form the most eloquent information necessary to characterize a system or to understand a process. In this research, we will use UML to propose the improvement of an existing application within Adobe, the purpose of which is to send promotional offers through multiple channels to members of the Adobe community. We will also approach at a theoretical level the description of the basic notions and analyzes used in modeling business processes and necessary for the diagnosis of business systems.