supplier Sourcing
As work efforts become more complex, project managers may use suppliers to perform functions or add modifications to products that are specifically needed by the project. When those activities are critical, the project benefits from enhanced source analysis and from monitoring supplier activities before product delivery. Under these circumstances, the supplier sourcing discipline covers the acquisition of products from suppliers.
Similar to IPPD best practices, supplier sourcing best practices must be selected in conjunction with best practices used to produce products.