According to Juran's philosophy on quality management, the critical element present in all corporate successes and absent in most failures is top management involvement. Juran emphasized that for quality initiatives to be successful, there must be a genuine commitment from top-level management. Without this commitment, efforts towards quality improvement are likely to be ineffective. The Juran Trilogy, which includes quality planning, quality control, and quality improvement, advocates for a company-wide dedication to quality, driven by a top-down approach where leadership plays a pivotal role in managing for quality excellence.
References:
* The Management Theory of Joseph Juran1
* The Juran Excellence Model2
* Joseph Juran: Founder of many of the key quality management programs3

Quality Function Deployment (QFD) is a structured planning process that helps organizations translate customer needs and requirements into specific product or service characteristics. It is used to ensure that the design and development process aligns with customer expectations and strategic goals. QFD involves cross-functional teams working together to prioritize features, identify critical design elements, and create a matrix that links customer requirements to technical specifications. By emphasizing planning and early-stage decision-making, QFD aims to prevent defects and improve overall quality.
References: 1: ASQ Certified Manager of Quality/Organizational Excellence