ABSTRACT
The results from House of Quality 3 are the foundation in developing a Control Plan. This chapter aims to manufacture a consistent predictable quality product, in other words, sustain the gains. The Control Plan is made up of five information parts: process step, measuring type, Process Variable (PV), measurement information, and reaction plan. Measurements that are taken internally in the manufacturing process can sometimes be passed onto the customer. The Measurement Method is how each PV is taken, and the Frequency defines how often the measurement is done. The Control Plan can be the foundation for training new employees on how to operate the different unit operations and how to react when the PVs are not operating within the recommended ranges. The customer receiving the oil also measures the viscosity using their own methods and instruments. When the customer saw the internal values of viscosity from the supplier to be lower than the one they measure, they rejected it immediately.
