TISAX
Automotive standard for secure information exchange in supply chains
ISA 95
International standard for enterprise-manufacturing system integration
Quick Verdict
TISAX ensures information security certifications for automotive suppliers via audited assessments, while ISA 95 provides integration models for enterprise-manufacturing systems. Organizations adopt TISAX for OEM contracts and trust; ISA 95 for reducing integration costs and data consistency.
TISAX
Trusted Information Security Assessment Exchange (TISAX)
Key Features
- Centralized ENX portal shares assessment results across partners
- Automotive-specific prototype protection and IP controls
- Risk-based levels: AL1 self-assess to AL3 on-site audits
- VDA ISA catalog with 70+ maturity-graded controls
- Three-year labels eliminate duplicate OEM supplier audits
ISA 95
ANSI/ISA-95 Enterprise-Control System Integration
Key Features
- Defines Purdue Levels 0-4 for system boundaries
- Activity models for manufacturing operations management
- Object models for equipment, materials, personnel
- Standardized Level 3-4 transactions and exchanges
- Alias services for multi-system identifier mapping
Detailed Analysis
A comprehensive look at the specific requirements, scope, and impact of each standard.
TISAX Details
What It Is
TISAX (Trusted Information Security Assessment Exchange) is an industry framework developed by ENX Association and VDA for automotive supply chain security. It standardizes assessments of information protection, focusing on CIA triad and high/very high needs like prototypes and IP. Uses risk-based VDA ISA catalog (version 5.0.4/6.0) with maturity levels.
Key Components
- **7 control groupsPolicy, Organization, Personnel, Physical Security, Access, Cryptography, Operations.
- 70+ controls, maturity scored 0-5 (min level 3 for conformance).
- Built on ISO 27001 with automotive extensions.
- Assessment levels: AL1 (self), AL2 (remote), AL3 (on-site); modular objectives (ISA, prototypes, data protection).
Why Organizations Use It
Contractual mandates from OEMs like BMW/VW prevent revenue loss. Enables market access, reduces duplicate audits (70-90% savings), mitigates breaches (€4.5M avg cost), builds trust in €2.5T chain.
Implementation Overview
Phased: Preparation/gap analysis (1-3 months), remediation/tabletops (3-9), audit/label (2-4), sustainment. Targets suppliers/OEMs/service providers; 6-18 months, €15k-€150k. ENX-accredited audits yield 3-year labels shared via portal.
ISA 95 Details
What It Is
ISA-95 (ANSI/ISA-95, IEC 62264) is an international reference framework for integrating enterprise business systems like ERP with manufacturing operations and control systems like MES. Its scope covers the interface between Level 3 (manufacturing operations management) and Level 4 (business planning) using the Purdue hierarchical model. The model-based approach defines activities, objects, and information exchanges across eight parts.
Key Components
- Five levels (0-4) organizing physical processes to enterprise logistics.
- Activity models (Part 3), object/attribute models (Parts 2, 4) for equipment, materials, personnel.
- Transactions (Part 5), messaging (Part 6), alias services (Part 7), exchange profiles (Part 8). Built on Purdue Reference Model; no formal certification, compliance via architectural alignment.
Why Organizations Use It
Reduces integration risks, costs, errors; enables semantic consistency for OEE, traceability. Drives IT/OT collaboration, regulatory compliance in manufacturing. Provides competitive agility via scalable data models; builds stakeholder trust through standardized exchanges.
Implementation Overview
Phased program: governance, gap analysis, canonical modeling, pilot, rollout. Applies to manufacturing firms globally; involves cross-functional teams, no mandatory audits.
Key Differences
| Aspect | TISAX | ISA 95 |
|---|---|---|
| Scope | Automotive information security and prototype protection | Enterprise-control system integration and manufacturing models |
| Industry | Automotive supply chain, global but Europe-focused | Manufacturing industries, discrete/process/continuous |
| Nature | Voluntary industry certification and assessment exchange | Voluntary reference architecture and information models |
| Testing | Self-assess to on-site audits (AL1-AL3), 3-year validity | No formal certification; gap analysis and model conformance |
| Penalties | Contract loss, no TISAX label, OEM exclusion | No penalties; integration risks and inefficiencies |
Scope
Industry
Nature
Testing
Penalties
Frequently Asked Questions
Common questions about TISAX and ISA 95
TISAX FAQ
ISA 95 FAQ
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