This document discusses how to manage relationships with vendors. It begins by defining what a vendor is and describing different types of vendors. It then outlines the stages of a vendor relationship from determining a need for a vendor, to searching for potential vendors, selecting a vendor, managing the relationship, and ending the relationship. Key stages discussed include determining project needs, finding vendors through various sources, assessing vendor skills and portfolios, setting expectations, ongoing communication, and troubleshooting issues that may arise. The goal is to provide guidance on building effective long-term partnerships with vendors.