For inclusion in the global market companies are faced with obstacles that usually result from a lack of competitiveness. To achieve this goal requires a thorough and powerful change in business enterprises that will aim to lower costs, shorter production cycle with better quality products or services. The activity of the organization is attainable through a variety of whole-related and focused business processes. The most commonly defined as "a collection of interdependent resources and activities which transform inputs into outputs". The transformation of input into output actually transform each other, that each process makes it unique and special. Transformation of input to output is a system of complex interactions and action systems. These changes are aimed at reshaping, restructuring and innovation, business process implementation and support of information technology. The success of projects changes business depends on many factors, especially on the application of appropriate tools and methods for modeling business processes. Business process is a complex and responsible task of management of any organization regardless of its size and activities. Any organization, regardless of whether is committed to the establishment and certification of quality systems in accordance with the requirements of international standard ISO 9001 or not, should build, document, implement business processes and manage them seeking their reliability.