Typical for Process Control applications is the feed back (or forward) link to the running process. Normally Process Control applications will be applied to improve process robustness when variability of input parameters, like raw material quality, or environmental conditions may lead to process performance variation and therefore in unwanted variability in end product quality.
Process Control applications are typically intended for long term use and require an optimal design with respect to process control criteria, user requirements and effectiveness. In addition, involved personnel has to be trained to manage the application adequately and independently.
Process Control applications can provide significant benefits when consistent product quality is mandatory.