This document discusses constraints that affect project management. It defines constraints as limiting factors that affect the execution of a project. The triple constraints of time, cost, and scope are introduced, and it is noted that changes in one constraint can put quality at risk by causing instability in the others. All constraints, including resources, risk, quality, and budget cuts are said to be equally important. An exercise tests the reader's understanding of what describes a project's constraints, with the answer being budget cuts which represent a lack of funds. The document promises more content on organizational structures and project lifecycles in upcoming parts of the series.