NIST 800-53
Federal catalog of security and privacy controls
CMMI
Global framework for process maturity and improvement
Quick Verdict
NIST 800-53 provides security/privacy controls for federal systems and contractors via RMF, while CMMI drives process maturity through appraisals for software/services. Companies adopt NIST for compliance/risk management; CMMI for predictable delivery and benchmarking.
NIST 800-53
SP 800-53 Rev. 5 Security and Privacy Controls
Key Features
- Outcome-based controls integrating security and privacy
- 20 families with low/moderate/high baselines
- Dedicated Supply Chain Risk Management family
- Flexible tailoring and overlays for customization
- OSCAL machine-readable formats for automation
CMMI
Capability Maturity Model Integration (CMMI)
Key Features
- Maturity Levels 0-5 for organizational progression
- 25 Practice Areas across 4 Category Areas
- Staged and continuous capability representations
- SCAMPI Class A/B/C appraisals for benchmarking
- Agile/DevOps integration with generic practices
Detailed Analysis
A comprehensive look at the specific requirements, scope, and impact of each standard.
NIST 800-53 Details
What It Is
NIST SP 800-53 Rev. 5 is the U.S. federal government's primary catalog of security and privacy controls for information systems and organizations. It provides a risk-informed, outcome-based framework to protect confidentiality, integrity, availability, and privacy risks through flexible safeguards.
Key Components
- 20 control families (e.g., AC, AU, SR, PT) with over 1,100 base controls and enhancements.
- Baselines in SP 800-53B for low/moderate/high impact levels plus privacy baseline.
- Tailoring, overlays, parameters for customization; linked to RMF (SP 800-37) and assessments (SP 800-53A).
- OSCAL machine-readable formats enable automation.
Why Organizations Use It
- Mandatory for federal agencies/contractors under FISMA, OMB A-130.
- Manages diverse threats including supply chain, privacy risks.
- Builds resilience, reciprocity, competitive edge via FedRAMP, cross-framework mappings.
- Enhances trust, reduces breach costs.
Implementation Overview
- **RMF lifecyclecategorize, select/tailor baselines, implement, assess, authorize, monitor.
- Phased approach with automation; suits federal, contractors, critical infrastructure.
- No certification but requires audits, ATO via evidence-driven assessments.
CMMI Details
What It Is
Capability Maturity Model Integration (CMMI) is a process improvement framework developed by the Software Engineering Institute and now governed by ISACA. It provides a structured approach to enhance organizational performance through maturity levels and capability assessments, focusing on software development, services, and acquisition.
Key Components
- 4 Category Areas (Doing, Managing, Enabling, Improving) with 12 Capability Areas and 25 Practice Areas in v2.0.
- Maturity Levels 0-5 and Capability Levels 0-3.
- Generic and specific practices for institutionalization.
- SCAMPI appraisals (Class A/B/C) for certification.
Why Organizations Use It
- Improves predictability, reduces rework, boosts productivity.
- Meets contractual requirements in defense and regulated sectors.
- Enhances risk management and stakeholder trust.
- Provides competitive benchmarking via published ratings.
Implementation Overview
- Phased approach: assessment, piloting, rollout, appraisal.
- Involves gap analysis, training, tooling integration.
- Applicable to mid-to-large organizations across industries.
- Requires authorized Lead Appraisers for formal ratings. (178 words)
Key Differences
| Aspect | NIST 800-53 | CMMI |
|---|---|---|
| Scope | Security/privacy controls for systems | Process maturity across development/services |
| Industry | Federal, contractors, critical infrastructure | Software, defense, services, global industries |
| Nature | Voluntary control catalog, RMF framework | Voluntary process improvement model |
| Testing | Continuous monitoring, SCAMPI-like assessments | SCAMPI A/B/C appraisals by certified appraisers |
| Penalties | Contract loss, FISMA non-compliance | No legal penalties, lost certification/business |
Scope
Industry
Nature
Testing
Penalties
Frequently Asked Questions
Common questions about NIST 800-53 and CMMI
NIST 800-53 FAQ
CMMI FAQ
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