What does six sigma aim to improve in operations management?

Six Sigma is a data-driven methodology primarily focused on improving quality by identifying and eliminating defects in processes. The core of Six Sigma is to systematically reduce variability and improve the consistency of processes, which ultimately enhances the overall quality of products and services. By employing statistical tools and techniques, organizations can pinpoint the root causes of defects, reduce process variability, and ensure that operational processes are streamlined effectively.

The Six Sigma framework operates under a principle that aims for near perfection, with a goal of limiting defects to just 3.4 per million opportunities. This focus on quality not only leads to better customer satisfaction but can also result in reduced costs and increased profitability for an organization, as fewer resources are spent on rework and correction of errors.

In contrast, the other options do not align with the primary focus of Six Sigma. While market share and increasing sales are important business objectives, they are not the direct aims of the Six Sigma approach. Similarly, operational efficiency through marketing strategies and inventory turnover rates, while significant, do not capture the essence of Six Sigma's commitment to quality improvement and defect elimination. Therefore, the choice centered around quality perfectly embodies the main goal of Six Sigma.