What is Overall Equipment Effectiveness (OEE)? With the increasing competition in the market, manufacturers must always ensure the most efficient operations to produce quality products. OEE is a standard for measuring manufacturing productivity. By measuring OEE, companies will gain important insights to improve production processes and minimize waste of resources. OEE is not only useful for ensuring the progress of the company itself from time to time. But OEE is also useful for comparing a company’s production performance against similar industry standards.