In today's automated environment with existence of ERP like SAP, Oracle etc. systems are now more control driven along with SOD. Though at the same time process is driven by execution in system which is driven by people. There are still manual intervention and output variation amongst people. To improve process effectiveness ahead of efficiency for an activity and to maintain consistencies, there is a need to put process control thereby defining one way of execution leading to one output in controlled and SOD environment.
Difference between control process and process control is that system control process is typically the large scale version of where process control is used.
process-control
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A process in a control system is the operation or system being monitored and controlled to achieve a desired outcome. Sensors collect data, controllers analyze it, and actuators make adjustments to keep the process operating efficiently, safely, and accurately.
The MBR takes control of the boot process from the sytem bios.
The nervous system has final control over the process of breathing, which is performed by the respiratory system.
The proportional integral and derivative control system or PID control system consists of proportionsl, derivative and integral elements which gives a very efficient process control.
All of the information needed to keep track of a process when switching is kept in a data package called process control block.s A PCB is a data structure in the operating system kernel containing the information needed to manage a particular process. The PCB is the manifestation of a process in an operating system,
An example of a process control system is a thermostat used to regulate the temperature in a building. The thermostat measures the current temperature and adjusts the heating or cooling system to maintain the desired temperature set by the user.
You are describing a closed-loop control system. This system continuously monitors the output and adjusts the input to maintain the output at the desired level by using feedback from the process.
You can find a process control network located at any large or small company that uses a base computer system. It is basically an ethernet system. It allows the company to have a connected system that communicates with each other.
Perhaps the most characteristic tool of statistical quality control is the control chart. In its simplest form the control chart is a continuous record of some feature of a process that is deemed to indicate whether that process is 'in control' or not. As long as the control chart shows that the process is within, say, three standard deviations of its mean behaviour it will be considered 'in control'; otherwise not, and steps to correct it taken.Before this system can be put into operation experimentation will be necessary, which implies the need for experimental design. One the system is in place, attempts are often made to find ways of improving the process under control to reduce the number of departures outside the control limits, or to narrow the limits.Please see the link.