WCAG
Global standard for accessible web content to disabled users
CMMI
Global framework for process maturity and improvement
Quick Verdict
WCAG ensures accessible web content via testable criteria for legal/ethical compliance, while CMMI drives process maturity for predictable delivery. Organizations adopt WCAG to avoid lawsuits and serve all users; CMMI for efficiency, quality, and procurement wins.
WCAG
Web Content Accessibility Guidelines (WCAG) 2.2
Key Features
- POUR principles organize accessibility requirements
- Testable success criteria at A/AA/AAA levels
- Technology-agnostic for current and future web tech
- Backward-compatible additive version updates
- Normative criteria separate from evolvable techniques
CMMI
Capability Maturity Model Integration (CMMI)
Key Features
- Maturity Levels 0-5 for organizational progression
- 25 Practice Areas in 4 Category Areas
- SCAMPI Class A/B/C appraisal methods
- Staged vs continuous representations
- Generic practices for institutionalization
Detailed Analysis
A comprehensive look at the specific requirements, scope, and impact of each standard.
WCAG Details
What It Is
Web Content Accessibility Guidelines (WCAG) 2.2 is the W3C's technology-agnostic standard for web accessibility. It provides testable success criteria under POUR principles (Perceivable, Operable, Understandable, Robust) to make content accessible to people with disabilities.
Key Components
- Four POUR principles with 13 guidelines and ~90 success criteria at A/AA/AAA levels.
- Normative success criteria; informative techniques, failures, and understanding docs.
- Conformance requires full pages, complete processes, accessibility-supported tech, non-interference.
Why Organizations Use It
- Meets legal benchmarks (ADA, Section 508, EN 301 549, EAA).
- Reduces litigation risk amid rising lawsuits.
- Improves UX, conversion rates, SEO, market reach.
- Enables procurement, governance, vendor contracts.
Implementation Overview
- Phased: policy, assessment, remediation, training, CI/CD integration, audits.
- Applies to all web content creators globally.
- No formal certification; self-assess via VPAT/ACR, independent audits recommended.
CMMI Details
What It Is
Capability Maturity Model Integration (CMMI) is a performance improvement framework developed by Carnegie Mellon’s SEI and governed by ISACA. It provides a structured approach to process institutionalization, focusing on maturity progression across development, services, and acquisition domains using staged or continuous representations.
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 Practices for institutionalization (policy, planning, monitoring).
- SCAMPI appraisals (Class A/B/C) for certification.
Why Organizations Use It
- Enhances predictability, reduces rework, improves quality.
- Meets contractual requirements in defense, regulated sectors.
- Manages risks via measurement and causal analysis.
- Builds competitive edge through benchmarked maturity.
Implementation Overview
- Phased: assessment, piloting, rollout, appraisal.
- Involves gap analysis, training, tooling integration.
- Suits mid-to-large organizations in IT, software, services globally.
- Requires authorized Lead Appraiser for formal ratings. (178 words)
Key Differences
| Aspect | WCAG | CMMI |
|---|---|---|
| Scope | Web content accessibility for disabilities | Process improvement across development/services |
| Industry | All web-publishing organizations globally | Software, defense, services, regulated sectors |
| Nature | Voluntary W3C technical guidelines | Voluntary process maturity framework |
| Testing | Automated/manual/AT testing, no certification | SCAMPI appraisals A/B/C by certified appraisers |
| Penalties | Litigation risk under ADA/EAA | Contract disqualification, no direct fines |
Scope
Industry
Nature
Testing
Penalties
Frequently Asked Questions
Common questions about WCAG and CMMI
WCAG FAQ
CMMI FAQ
You Might also be Interested in These Articles...

NIST CSF 2.0 Plain English Decoder: Translating Govern, Supply Chain, and Core Functions from Jargon to Actionable Insights
Demystify NIST CSF 2.0 jargon with plain English tables for Govern, Supply Chain & Core Functions. Actionable steps for risk oversight & vendor management. Empo

CMMC Level 3 Implementation Guide: Integrating NIST SP 800-172 Enhanced Controls for APT Defense
Step-by-step CMMC Level 3 guide for DIB contractors. Implement 24 NIST SP 800-172 controls on Level 2. Prep for DIBCAC, C3PAO scoping & 180-day POA&Ms. Boost cy

TISAX Tabletop Exercises for ADAS Suppliers: Simulating Prototype IP Leaks and Ransomware in Hybrid Supply Chains (2025 Edition with Hero Scenario Visual)
Master TISAX 'Very High' tabletop exercises for ADAS suppliers with 2024 breach simulations like CAD leaks and ransomware. Get scripts, AAR templates, hybrid ti
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
ISO 37001 vs ISO/IEC 42001:2023
Compare ISO 37001 vs ISO/IEC 42001:2023: Anti-bribery mastery meets AI governance. Uncover differences, benefits & implementation tips for compliance success. Choose now!
ISO 27001 vs PIPL
Compare ISO 27001 vs PIPL: Align global ISMS resilience with China's strict data privacy law. Discover key differences, compliance strategies, and risk frameworks for secure operations. Read now!
NERC CIP vs Basel III
Compare NERC CIP vs Basel III: Vital standards for BES cybersecurity & banking resilience. Unlock risk-based compliance, audits, buffers & strategies to secure critical infrastructure. Explore now!