ESA ECSS-E-ST-40C — Space Software Engineering Standard
The European Cooperation for Space Standardization (ECSS) ECSS-E-ST-40C (2009) establishes software engineering requirements for space systems. Applicable to all ESA missions and widely adopted by national space agencies and industry. Covers the complete software lifecycle from requirements to operations including safety-critical and mission-critical software. Includes provisions for software security, quality assurance, verification, and validation. Complemented by ECSS-Q-ST-80C (Software Product Assurance) and ECSS-E-ST-10C (System Engineering). ECSS standards are mandatory for ESA contracts and widely adopted commercially.
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Framework Domains (7)
5.2 Software-Related System Requirements
| Code | Title |
|---|---|
| ECSS-5.2.1 | System Requirements Analysis |
| ECSS-5.2.2 | Software Item Identification |
| ECSS-5.2.3 | System Requirements Review (SRR) |
| ECSS-E-40C-5.2.1 | System Requirements Analysis |
| ECSS-E-40C-5.2.2 | Software Item Identification |
5.3 Software Management
| Code | Title |
|---|---|
| ECSS-5.3.1 | Software Project Planning |
| ECSS-5.3.2 | Software Configuration Management |
| ECSS-5.3.3 | Review Milestones |
| ECSS-5.3.4 | Software Criticality Classification |
| ECSS-E-40C-5.3.1 | Project Planning |
| ECSS-E-40C-5.3.2 | Configuration Management |
| ECSS-E-40C-5.3.3 | Criticality Classification |
5.4 Requirements and Architecture
| Code | Title |
|---|---|
| ECSS-E-40C-5.4.1 | Software Requirements |
| ECSS-E-40C-5.4.2 | Architecture Design |
5.5 Design and Implementation
| Code | Title |
|---|---|
| ECSS-E-40C-5.5.1 | Detailed Design |
| ECSS-E-40C-5.5.2 | Coding and Unit Test |
5.6-5.8 Validation and Verification
| Code | Title |
|---|---|
| ECSS-E-40C-5.6.1 | Validation Planning and Execution |
| ECSS-E-40C-5.8.1 | Verification Planning and Execution |
| ECSS-E-40C-5.8.2 | Integration Testing |
5.7 Delivery and Acceptance
| Code | Title |
|---|---|
| ECSS-E-40C-5.7.1 | Delivery and Acceptance |
5.9-5.10 Operations and Maintenance
| Code | Title |
|---|---|
| ECSS-5.10.1 | Software Maintenance |
| ECSS-5.10.2 | Problem Reporting and Resolution |
| ECSS-5.9.1 | Software Operation |
| ECSS-E-40C-5.10.1 | Maintenance |
| ECSS-E-40C-5.9.1 | Operations Support |
Maps to 435 other frameworks
Frequently Asked Questions
What is ESA ECSS-E-ST-40C — Space Software Engineering Standard?
ESA ECSS-E-ST-40C — Space Software Engineering Standard is a compliance framework from Europe (ESA/ECSS) with 7 domains and 25 controls. The European Cooperation for Space Standardization (ECSS) ECSS-E-ST-40C (2009) establishes software engineering requirements for space systems. Applicable to all ESA missions and widely adopted by national space agencies and industry. Covers the complete software lifecycle from requirements to operations including safety-critical and mission-critical software. Includes provisions for software security, quality assurance, verification, and validation. Complemented by ECSS-Q-ST-80C (Software Product Assurance) and ECSS-E-ST-10C (System Engineering). ECSS standards are mandatory for ESA contracts and widely adopted commercially. It is used by organisations to establish and maintain compliance with industry standards and regulatory requirements.
How many controls does ESA ECSS-E-ST-40C — Space Software Engineering Standard have?
ESA ECSS-E-ST-40C — Space Software Engineering Standard has 25 controls organised across 7 domains. The largest domains are 5.3 Software Management (7 controls), 5.2 Software-Related System Requirements (5 controls), 5.9-5.10 Operations and Maintenance (5 controls). Each control defines specific requirements that organisations must implement to achieve compliance.
What frameworks does ESA ECSS-E-ST-40C — Space Software Engineering Standard map to?
ESA ECSS-E-ST-40C — Space Software Engineering Standard maps to 435 other compliance frameworks. The top mapping partners are ISO/IEC 27400:2022 (20% coverage), NIST SP 800-171A Rev 3 — Assessing CUI Security Requirements (20% coverage), Azure Security Benchmark (20% coverage). Use our comparison tool to explore control-level mappings between frameworks.
How do I get started with ESA ECSS-E-ST-40C — Space Software Engineering Standard compliance?
Start your ESA ECSS-E-ST-40C — Space Software Engineering Standard compliance journey by running a self-assessment on our platform to identify your current compliance posture. Our AI advisory can answer specific questions about ESA ECSS-E-ST-40C — Space Software Engineering Standard requirements, and cross-framework mapping helps you leverage existing controls from other frameworks you may already comply with. Create a free account to access all 25 controls and track your progress.
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