The benefits of standardized work include reductions in variability, injuries, and strain. Standards are perfect for new operators training and provide a baseline for improvement activities. Standardize work is a powerful lean tool; it is the baseline for kaizen or continuous improvement. There are different standardization techniques: poka-yoke, visual management, SWIS, checking and auditing. I like visual standards because they are easy to follow but the downside is that once you post a standard we need to follow it.
When we post standards, is to use them as a reference, to know what is in compliance and what is not. Visual standards are meant to highlight out of compliance situations. If the standard is no longer good, then change it first. Never ask an employee to do something different from the current standard. As soon as you break the rule, you give the wrong signal and show no respect for the people who work to create the standard. As the standard is improved, the new standard becomes the baseline for further improvements, and so on. Improve the standard, change the visual and start the continuous process again, this part is a never-ending process.