A software product line is a set of related software products that share common features and are developed from a common set of core assets. This approach allows organizations to efficiently create and manage multiple software variations, catering to different customer needs while reducing development time and costs. By reusing components and adhering to a defined architecture, software product lines promote consistency and quality across products. This strategy is often used in industries like automotive, telecommunications, and embedded systems, where similar functionalities are required across different applications or devices.