(1) Linked set of resources and processes between multiple tiers of developers that begins with the sourcing of products and services and extends through the design, development, manufacturing, processing, handling, and delivery of products and services to the acquirer. Retrieved from: NIST SP 800-53 Rev. 4 under Supply Chain. 2020. https://csrc.nist.gov/glossary (2) Supply chains are increasingly viewed as a strategic asset.