Standards Comparison

    CMMI

    Voluntary
    2023

    Process maturity framework with levels 0-5

    VS

    ISO 27017

    Voluntary
    2015

    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.

    Process Maturity

    CMMI

    Capability Maturity Model Integration (CMMI)

    Cost
    €€€€
    Complexity
    High
    Implementation Time
    12-18 months

    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
    Cloud Security

    ISO 27017

    ISO/IEC 27017:2015 Code of practice for cloud security

    Cost
    €€€
    Complexity
    Medium
    Implementation Time
    6-12 months

    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

    Scope

    CMMI
    Process improvement across development, services, acquisition
    ISO 27017
    Cloud-specific security controls extending ISO 27002

    Industry

    CMMI
    Software, IT ops, defense, cross-industry global
    ISO 27017
    Cloud providers/customers, all industries global

    Nature

    CMMI
    Voluntary maturity framework with appraisals
    ISO 27017
    Voluntary code of practice for ISO 27001 ISMS

    Testing

    CMMI
    SCAMPI A/B/C appraisals by certified appraisers
    ISO 27017
    Integrated into ISO 27001 audits, no standalone cert

    Penalties

    CMMI
    Loss of maturity rating, no legal penalties
    ISO 27017
    No direct penalties, impacts ISO 27001 certification

    Frequently Asked Questions

    Common questions about CMMI and ISO 27017

    CMMI FAQ

    ISO 27017 FAQ

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