Definition
NIST 800-53
NIST SP 800-53 Security and Privacy Controls for Information Systems and Organizations. Rev 5 is the current version with ~1,000 controls organized into 20 families (AC, AT, AU, CA, CM, CP, IA, IR, MA, MP, PE, PL, PM, PS, PT, RA, SA, SC, SI, SR).
See this concept in action
Extant Portal implements mission engineering concepts as interactive tools.