CMMI vs EN 1090
CMMI
Framework for process maturity and organizational capability improvement
EN 1090
EU standard for steel and aluminium structural execution.
Quick Verdict
CMMI drives voluntary process maturity for predictable software/IT delivery globally, while EN 1090 mandates CE marking for structural steel/aluminium in EU construction. Companies adopt CMMI for performance gains; EN 1090 for legal market access.
CMMI
Capability Maturity Model Integration (CMMI)
Key Features
- Staged maturity levels (0-5) for organizational process progression
- 25 Practice Areas in Doing, Managing, Enabling, Improving categories
- Benchmark appraisals enabling official maturity ratings
- Governance and infrastructure practices ensuring process institutionalization and sustainment
- Agile/DevOps integration with tailored, performance-focused practices
EN 1090
EN 1090 Execution of steel and aluminium structures
Key Features
- Risk-based Execution Classes (EXC1-EXC4)
- Factory Production Control (FPC) certification
- CE marking and Declaration of Performance
- Welding quality management via ISO 3834
- Material traceability and NDT inspection
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 a certification model governed by ISACA's CMMI Institute, it focuses on software development, services, and acquisition. Its maturity-based approach progresses organizations from ad-hoc to optimizing processes via levels 0-5.
Key Components
- 4 Category Areas: Doing, Managing, Enabling, Improving.
- Practice Areas like Requirements Development, Configuration Management, Causal Analysis.
- Governance and infrastructure practices for institutionalization (policy, planning, monitoring).
- Staged/continuous representations with Benchmark appraisals for validation.
Why Organizations Use It
- Enhances predictability, reduces rework (up to 50% gains).
- Meets contractual requirements in defense, regulated sectors.
- Builds stakeholder trust via benchmark ratings.
- Drives ROI through data-driven optimization.
Implementation Overview
- Phased: assessment, piloting, training, appraisal.
- Applies to mid-large organizations in IT/software.
- Involves gap analysis, pilots, Benchmark and Evaluation appraisals. Requires executive sponsorship, tools for evidence.
EN 1090 Details
What It Is
EN 1090 is the European harmonized standard family (EN 1090-1, -2, -3) for conformity assessment and execution of structural steel and aluminium components. It implements CPR requirements for CE marking of load-bearing parts in construction. Primary scope covers fabrication, assembly, and risk-based controls via Execution Classes (EXC1-4).
Key Components
- Factory Production Control (FPC): Certified system for traceability, inspection, welding.
- Technical rules in EN 1090-2/3: Materials, tolerances, corrosion protection, NDT.
- DoP and CE marking supported by Notified Body audits.
- Built on ISO 3834 welding quality; AVCP systems for certification.
Why Organizations Use It
- Mandatory for EU/EEA market access and legal compliance.
- Mitigates failure risks, ensures liability protection.
- Enables high-consequence projects, boosts competitiveness.
- Builds stakeholder trust through certified quality.
Implementation Overview
Phased: Gap analysis, FPC development, personnel training, NB certification, surveillance. Targets fabricators in construction; 6-12 months typical, with ongoing audits.
Key Differences
| Aspect | CMMI | EN 1090 |
|---|---|---|
| Scope | Process improvement across development, services, acquisition | Execution of steel/aluminium structural components |
| Industry | Software, IT, defense, global cross-industry | Construction, fabrication, EU/EEA focused |
| Nature | Voluntary performance framework with appraisals | Mandatory harmonized standard for CE marking |
| Testing | SCAMPI appraisals by certified appraisers | FPC certification and surveillance by Notified Bodies |
| Penalties | Loss of certification, no legal penalties | Market exclusion, fines, legal liability |
Scope
Industry
Nature
Testing
Penalties
Frequently Asked Questions
Common questions about CMMI and EN 1090
CMMI FAQ
EN 1090 FAQ
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