Process of obtaining a system, product, or service.
Source(s):
NIST SP 800-160 Vol. 1
under acquisition
from
ISO/IEC/IEEE 15288
Includes all stages of the process of acquiring product or services, beginning with the process for determining the need for the product or services and ending with contract completion and closeout.
Source(s):
NIST SP 800-161r1
under acquisition