CMMI
Process maturity framework with levels 0-5
ISO 27017
International standard for cloud-specific security controls
Quick Verdict
CMMI drives process maturity for predictable delivery in software/IT, while ISO 27017 provides cloud-specific security controls within ISO 27001. Organizations adopt CMMI for operational excellence and benchmarking; ISO 27017 for shared cloud responsibility and regulatory assurance.
CMMI
Capability Maturity Model Integration (CMMI)
Key Features
- 6 Maturity Levels (0-5) for organizational progression
- 25 Practice Areas across 4 Category Areas
- Staged and continuous capability representations
- SCAMPI appraisals for official benchmarking
- Generic practices ensuring process institutionalization
ISO 27017
ISO/IEC 27017:2015 Code of practice for cloud security
Key Features
- Clarifies shared responsibilities between CSPs and CSCs
- Introduces 7 cloud-specific CLD security controls
- Adapts 37 ISO 27002 controls for cloud environments
- Addresses multi-tenancy segregation and VM hardening
- Enables customer monitoring of cloud service activities
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) is a performance improvement framework for process institutionalization. Primarily for software development, services, and acquisition, it uses maturity levels and capability progressions to enhance predictability and quality. Key approach: staged (organizational maturity) or continuous (per-practice area) representations with v2.0 featuring 4 Category Areas.
Key Components
- 25 Practice Areas grouped into Doing, Managing, Enabling, Improving.
- 6 Maturity Levels (0-5); Capability Levels 0-3.
- Specific and generic practices for institutionalization.
- SCAMPI appraisals (Class A/B/C) for certification.
Why Organizations Use It
Drives reduced rework, predictable delivery, ROI via data-driven control. Often contractually required in defense; builds stakeholder trust, competitive edge in procurement. Mitigates risks like overruns, defects.
Implementation Overview
Phased: gap analysis, pilots, training, rollout, appraisal. Applies to mid-large orgs in IT/software/services globally. Focuses Agile/DevOps integration; requires executive sponsorship, tooling for evidence.
ISO 27017 Details
What It Is
ISO/IEC 27017:2015 is an international code of practice providing guidance on information security controls for cloud services, extending ISO/IEC 27002. It targets cloud service providers (CSPs) and customers (CSCs), using a risk-based approach integrated into an ISO 27001 ISMS to address cloud-unique risks like shared responsibilities and multi-tenancy.
Key Components
- Cloud-specific implementation guidance for 37 ISO 27002 controls
- 7 additional CLD controls (e.g., segregation, VM hardening, asset removal)
- Built on ISO 27001 ISMS framework
- No standalone certification; assessed within ISO 27001 audits
Why Organizations Use It
- Clarifies shared responsibility models reducing cloud risks
- Supports regulatory alignment (e.g., GDPR) and procurement demands
- Enhances multi-tenancy security and operational maturity
- Builds stakeholder trust and CSP competitive differentiation
Implementation Overview
- Integrate via risk assessment and control mapping in existing ISMS
- Key activities: responsibility matrices, config hardening, monitoring setup
- Suited for CSPs/CSCs globally, any size/industry with cloud use
- Joint audits with ISO 27001, typically 9-12 months (179 words)
Key Differences
| Aspect | CMMI | ISO 27017 |
|---|---|---|
| Scope | Process improvement across development, services, acquisition | Cloud-specific security controls extending ISO 27002 |
| Industry | Software, IT ops, defense, cross-industry global | Cloud providers/customers, all industries global |
| Nature | Voluntary maturity framework with appraisals | Voluntary code of practice for ISO 27001 ISMS |
| Testing | SCAMPI A/B/C appraisals by certified appraisers | Integrated into ISO 27001 audits, no standalone cert |
| Penalties | Loss of maturity rating, no legal penalties | No direct penalties, impacts ISO 27001 certification |
Scope
Industry
Nature
Testing
Penalties
Frequently Asked Questions
Common questions about CMMI and ISO 27017
CMMI FAQ
ISO 27017 FAQ
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