Growth Matrix – Participation or Boston Consulting Group Matrix Growth Matrix – participation, known as the Matrix or Matrix Boston Consulting Group BCG, is a graphical method of business portfolio analysis developed by The Boston Consulting Group in the early 1970, is a strategic analysis tool specifically for corporate strategic planning, however by its close relationship with strategic marketing, is considered a tool of the discipline. Its purpose is to help decide approaches for different business or Strategic Business Units (UEN), ie between companies or areas, those where: invest, divest or even abandoned. The method uses a 2×2 matrix for grouping various types of business that a particular company owns.