Safety should never be seen as a function, forcefully imposed upon a well chalked-out process. Integrated safety has long been seen a dangerous concept to masquerade with, making manufacturers design safety as a separate component. While doing so may make planning easier by adding another major step into the entire process, it actually adds complexity in the form redundancies.
Companies are now realizing this point and gradually shifting towards integrated safety concepts. For instance, Paper Converting Machine Corporation in Green Bay, Wisconsin uses an integrated safety platform from Rockwell to help its engineers plan upgrades while keeping safety in the equation. The integrated controls mean the engineers can perform all sorts of risk assessment while defining the functional requirements early in the design process. In addition, the engineers work in one programming environment since all the process and safety controls are on the same platform.