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We all know reach can exceed grasp, but at least in accessing and using process control information, many longtime hurdles are shrinking. Finally, knowledge-on-demand is closer at hand—physically, if not always mentally. In this issue, learn more about how plants are putting knowledge at their fingertips. 
Also in this issue are articles about SIS proof test coverage, dimensionless group models and we deliver the latest in level measurement devices. 
Find all of that and more in the May issue of Control.