This document provides an overview of the BCG matrix and GE nine cell matrix models. The BCG matrix classifies businesses based on their relative market share and market growth rate, identifying them as Stars, Cash Cows, Question Marks or Dogs. It is used to determine how to allocate corporate cash resources to maximize growth. The GE nine cell matrix similarly analyzes product lines based on industry attractiveness and business strength, dividing them into nine cells to aid strategic decisions. Both models are tools for portfolio analysis and cash allocation.