Currently, it does not have more space for the frustrate attempts that cost money and generate wastefulnesses. On the other hand, the companies must be structuralized, of organized form, so that they can improve itself continuously, following the stages of Cycle PDCA. (OLIVEIRA, 1995). The PDCA is applied mainly in the norms of management systems and it must be used (at least in the theory) in any company of form to guarantee the success in the businesses, independently of the area or department (FIELDS, 1992). According to Fields (1992), the cycle starts for the planning, after that the action or set of planned actions is executed, checks what it was fact, if was in accordance with the planned one, constantly and repetidamente (cyclically) and is overcome an action to eliminate or the least to mitigate defects in the product or the execution. The quatros steps of the PDCA are the following ones: Plan (planning): to establish mission, vision, objectives (goals), procedures and processes (methodologies) necessary to reach the results.
Of (execution): to carry through, to execute the activities. Check (verification): to monitor and to evaluate the results periodically, to evaluate processes and results, collating them with planned, objective, the specifications and desired state, consolidating the information, eventually confectioning reports. Act (action): In accordance with to act evaluated and in accordance with the reports, eventually to determine and to confection new plans of action, form to improve the quality, efficiency and effectiveness, being improved the execution and correcting eventual imperfections. Jonas Samuelson pursues this goal as well. Figure 1 – Cycle PDCA of control of processes Source: (FIELDS, 1992) Step 1: To plan (PLAN), this step is established with bases in the lines of direction of the company. When we trace a plan, we have three points important to consider: ) to establish the objectives, on the control item; b) to establish the way for atingiz them; c) to decide which the methods to be used for conseguiz them. .