This PPMP20011 Unit Portfolio for Week 5 focuses on communicating in commercial negotiation versus project communication, differentiating methods of project negotiation, conflict management, and stakeholder engagement across projects with differing technology standards and asset lifecycles. It explains and applies methods of identifying and reconciling inconsistent and conflicting objectives and drivers that develop, maintain, and manage relationships. The portfolio also evaluates the consequences of project delays, disruptions, and changes to planned activities, including methods for claims variations, liquidated damages, contract entitlements, and arbitration, while evaluating project management tools that help avoid or provide conflict resolution via negotiated solutions. The document references various sources and emphasizes the role of the project manager in commercial negotiation.