The product line structure management method generally refers to the Boston matrix. Boston Matrix (BCG Matrix), also known as market growth rate-relative market share matrix, Boston Consulting Group method, four-quadrant analysis method, product series structure management method, etc. A matrix diagram is a management tool that is used to analyze and determine the relationship between data sets. Professionals and project managers deal with numerous projects, deals, and clients. Check this matrix for more details and make yours with ease.