This report provides a comprehensive analysis of operations and project management principles as applied to Marks & Spencer Ltd. It begins with a review and critique of operational management principles, focusing on the implementation of Six Sigma methodology and Lean principles within the company. The report then prepares a continuous improvement plan, based on the review, outlining a Plan-Do-Check-Act cycle to enhance efficiency. Furthermore, it applies the stages of the product life cycle (PLC) to a new project, detailing the necessary documentation for completion. The report also reviews the effectiveness of the PLC, utilizing relevant theories, concepts, and models to assess the new product's lifecycle. The report's findings highlight the importance of efficient operational and project management in expanding product lines and maintaining competitiveness in the business world.