Product Line Engineering is a systematic approach to developing a range of related products from a shared set of core assets. This method allows companies to efficiently manage variations and customizations while maintaining consistency across the product line. By reusing components and processes, organizations can reduce development time and costs. In Product Line Engineering, teams focus on defining a common platform that supports multiple products. This involves identifying shared features and functionalities, which can be tailored to meet specific market needs. The goal is to maximize efficiency and innovation while minimizing redundancy in the development process.