This document summarizes topics around quality management and control. It discusses code management challenges like spaghetti code and how to prevent it through coding guidelines, code reviews, and change tracking. It also covers defining a clear prioritization process to manage competing demands. The document proposes ways to control quality such as gating processes and testing. Finally, it shares two personal case studies, one about clarifying vague requirements for a telecom project and another analyzing user behavior data to assess ROI and guide business decisions.