An interview with Andrew McDonald, global automation and control manager for Unilever, maker of food and personal care brands such as DoveĀ®, SuaveĀ®, VaselineĀ®, LiptonĀ®, SkippyĀ® and SlimFastĀ®. McDonald is also the chief architect of an industry-wide āstate model,ā a term used to describe whether a packaging machine is running, down, on standby, etc. Controls & Machine Components: Page 278