4.1 The 7 steps of the procurement cycle: 1-Identification of needs. ... 2-Purchase request and approval. ... 3-RFX creation and execution. ... 4-Vendor evaluation, vetting, and selection. ... 5-Contract negotiation and agreement. ... 6-Implementation and delivery. ... 7-Supplier performance evaluation. You need to explain in briefly ( with proper citations and example) Introduction to materials management