This document introduces Change Vector Tracking (CVT) as a technique for tracking changes in software systems and using that information to make informed decisions about architecture refactoring. CVT models changes as weighted vectors that quantify different dimensions of change, like new products, modified pricing strategies, etc. These change vectors are tracked periodically and analyzed along with design debt to prioritize refactoring needs. The document provides an example of how CVT could be applied and recommends establishing regular CVT meetings and ceremonies to document change vectors and identify refactoring opportunities.