For more information on eligibility for employment-based nonimmigrant visas, see Nonimmigrant (Temporary) Work Visa Options. Your next step is determining how and where to apply for your visa; for more information, see Nolo's article Applying for a Nonimmigrant (Temporary) Visa or get the book U.S. Immigration Made Easy, by Ilona Bray (Nolo).
Statistical process control. Statistical process control (SPC) is the use of statistical methods to assess the stability of a process and the quality of its outputs. For example, consider a bottling plant. The entire system of production that produces filled bottles is termed a process.
Feedback Control. This type of control focuses on the outputs of the organization after transformation is complete. Sometimes called postaction or output control, fulfils a number of important functions. For one thing, it often is used when feedforward and concurrent controls are not feasible or are to costly. Sometimes, feedback is the only viable type of control available.