CMMI
Process maturity framework with levels 0-5 for improvement
ISO 28000
International standard for supply chain security management systems.
Quick Verdict
CMMI drives process maturity for predictable software and service delivery across industries, while ISO 28000 establishes security management systems for supply chain resilience. Organizations adopt CMMI for performance benchmarking and ISO 28000 for risk mitigation and compliance assurance.
CMMI
Capability Maturity Model Integration (CMMI) v2.0
Key Features
- Maturity Levels 0-5 for predictable organizational progression
- 25 Practice Areas across Doing, Managing, Enabling, Improving
- Generic practices ensuring sustained process institutionalization
- SCAMPI Class A/B/C appraisals for benchmarking ratings
- Staged and continuous representations for flexible adoption
ISO 28000
ISO 28000:2022 Security management systems Requirements
Key Features
- Risk-based supply chain security assessment and treatment
- PDCA cycle for continual SMS improvement
- Integration with ISO 31000 and ISO 22301 standards
- Controls for suppliers and external processes
- Documented security plans and incident response
Detailed Analysis
A comprehensive look at the specific requirements, scope, and impact of each standard.
CMMI Details
What It Is
Capability Maturity Model Integration (CMMI) v2.0 is a performance improvement framework for process institutionalization. It assesses organizational maturity in development, services, and acquisition, using maturity and capability levels for predictable, measurable outcomes.
Key Components
- 4 Category Areas: Doing, Managing, Enabling, Improving
- 12 Capability Areas, 25 Practice Areas with specific expectations
- Maturity Levels 0-5; Capability Levels 0-3 per area
- Generic practices for institutionalization; SCAMPI appraisals for validation
Why Organizations Use It
- Reduces risks, rework, overruns; improves predictability, quality
- Meets contractual requirements in defense, regulated sectors
- Builds stakeholder trust via published ratings
- Enables competitive bidding, ROI through data-driven optimization
Implementation Overview
- Phased: assessment, piloting, rollout, appraisal, sustainment
- Tailored for Agile/DevOps; tools for evidence capture
- Suits mid-to-large firms in software, IT, aerospace
- Requires authorized SCAMPI Class A for official certification (179 words)
ISO 28000 Details
What It Is
ISO 28000:2022 is an international standard specifying requirements for a security management system (SMS) focused on supply chain security. It adopts a risk-based, PDCA (Plan-Do-Check-Act) approach to manage threats like theft, sabotage, and disruptions across supply chains.
Key Components
- Clauses 4-10 cover context, leadership, planning, support, operation, evaluation, and improvement.
- Emphasizes risk assessment (aligned with ISO 31000), operational controls, security plans, and supplier interdependencies.
- Built on harmonized ISO structure for integration; supports third-party certification per ISO 28003.
Why Organizations Use It
- Reduces security incidents, ensures compliance, meets partner requirements.
- Enhances resilience, lowers insurance costs, improves market access.
- Builds stakeholder trust through auditable governance.
Implementation Overview
- Phased: gap analysis, risk assessment, controls deployment, audits.
- Scalable for all sizes/industries; 12-18 months typical with certification via Stage 1/2 audits.
Key Differences
| Aspect | CMMI | ISO 28000 |
|---|---|---|
| Scope | Process improvement across development, services, acquisition | Supply chain security management system requirements |
| Industry | Software, IT, defense, cross-industry global | Logistics, manufacturing, any supply chain sector global |
| Nature | Voluntary process maturity framework with appraisals | Voluntary certification management system standard |
| Testing | SCAMPI appraisals (A/B/C) by certified appraisers | Internal audits, management reviews, certification audits |
| Penalties | No legal penalties, loss of maturity rating | No legal penalties, loss of certification status |
Scope
Industry
Nature
Testing
Penalties
Frequently Asked Questions
Common questions about CMMI and ISO 28000
CMMI FAQ
ISO 28000 FAQ
You Might also be Interested in These Articles...

CIS Controls v8.1, Operationalized: Top 10 Reasons Compliance Monitoring Software Accelerates Real-World Implementation
Operationalize CIS Controls v8.1 with compliance monitoring software. Turn checklists into dashboards, tickets, and audit-proof workflows. Top 10 reasons it acc

From Reactive Gatekeeper to Proactive Strategist: How Compliance Software Reshapes the Compliance Professional's Day
Discover how compliance software automates monitoring, delivers real-time insights, and transforms compliance pros from reactive gatekeepers to proactive strate

Beyond Reactive: Transforming Compliance into Real-Time Threat Prevention
Discover how modern compliance monitoring tools leverage continuous, real-time oversight and automated alerts to shift organizations from reactive problem-solving to proactive threat detection and prevention, safeguarding against emerging risks before they escalate.
Run Maturity Assessments with GRADUM
Transform your compliance journey with our AI-powered assessment platform
Assess your organization's maturity across multiple standards and regulations including ISO 27001, DORA, NIS2, NIST, GDPR, and hundreds more. Get actionable insights and track your progress with collaborative, AI-powered evaluations.
Check out these other Gradum.io Standards Comparison Pages
CMMI vs ISO 27017
CMMI vs ISO 27017: Compare CMMI's maturity levels for process excellence vs ISO 27017's cloud security controls. Optimize IT ops, boost compliance. Discover key differences now!
DORA vs ISO 17025
Discover DORA vs ISO 17025: Energy operability framework meets lab competence standard. Key differences in design, compliance & testing—optimize resilience & efficiency now!
TISAX vs SAMA CSF
Discover TISAX vs SAMA CSF: Compare automotive supply chain security with Saudi financial frameworks. Unlock strategies, maturity models & implementation for compliance excellence. Choose now!