This article discusses the difference between operation and operational management, and how Sainsbury, the second largest chain of supermarkets in the UK, implements operations management principles and a continuous improvement plan to meet its objectives. It also covers the product life cycle in the context of an in-house project related to catering within the firm, and critical evaluation of the product life cycle in application in the project by utilizing theories and models. The article provides a continuous improvement plan for Sainsbury and recommendations for the company to stay ahead in competition.