Blending is the process of mixing different components to yield a product. Blend optimization and supervisory system (BOSS) is a supervisory controller over the whole blending process in a continuous process industry. It is an application solution, includes the technology and engineering services to achieve maximum product worth at least cost while maintaining specified product quality and satisfying mandated environmental regulations. Linear programming forms a natural technique for optimizing blending operations provided that various quantities of interest blend linear. BOSS calculates the optimal blend ratios for a particular blending process and send the ratio to the digital blender. The digital blender having the master control over the process. The feedback performance is done by using certain on-line analyzers such as NIR analyzer.