Section 1 - Summary Logic
Define→Collect→Govern→Assure→Disclose→Improve
The CEO question this OS answers
"How do we build a trusted, decision-useful sustainability information system that enables better strategy, compliance, transparency, and value creation?"
Sustainability data has evolved from a reporting requirement into a core enterprise management capability. Investors, regulators, customers, employees, and boards increasingly expect organisations to demonstrate credible, comparable, and assured information on environmental, social, and governance performance.
This OS provides the foundation to manage sustainability data with the same discipline as financial information - creating a reliable system for measurement, decision-making, risk management, disclosure, and continuous improvement. The purpose is to move from sustainability reporting as a disclosure exercise towards ESG data as an enterprise intelligence system.
Section 2 - CEO Takeaway
The transformation
From
"We prepare sustainability reports."
To
"We operate a trusted sustainability intelligence system that enables better decisions, stronger governance, and credible stakeholder communication."
This OS connects to and enables
All Operating Systems - this OS is the information backbone of the Enterprise Sustainability OS
Section 3 - Operating System Architecture
The 9-layer architecture flows from strategic governance through to continuous improvement.
1
ESG governance & reporting strategy
Establish ownership, accountability, and reporting purpose
Building blocks
ESG reporting strategy
Board oversight
Executive accountability
Reporting governance model
ESG data ownership
Roles and responsibilities
Internal controls framework
Key questions
Who owns ESG data quality?
Is sustainability information managed with appropriate governance?
↓
2
Materiality & disclosure requirement mapping
Define what matters and what must be reported
Building blocks
Double materiality assessment
Stakeholder expectations
Regulatory requirements
Investor information needs
Industry-specific metrics
Disclosure mapping across CSRD/ESRS, ISSB, GRI, CDP, TNFD
Key questions
What information is decision-useful?
Are we focusing on material sustainability issues?
↓
3
ESG data architecture & system design
Build the infrastructure for reliable sustainability data
Building blocks
ESG data model
Data taxonomy
Reporting boundaries
Data ownership
Digital platforms
Data workflows
Integration with ERP systems
Key questions
Do we have the right systems and structures?
Can ESG data flow across the organisation?
↓
4
Data collection & performance measurement
Generate consistent and reliable ESG information
Building blocks
Data collection processes
Measurement methodologies
Operational data capture
Supplier data collection
Surveys and assessments
Estimation methodologies
Data quality checks
Key questions
Are we measuring the right things?
Can we trust the information collected?
↓
5
Data quality, controls & management
Ensure ESG information is accurate and consistent
Building blocks
Data validation
Quality controls
Calculation methodologies
Version management
Evidence retention
Audit trails
Internal controls
Key questions
Could ESG data withstand scrutiny?
Is the information comparable over time?
↓
6
ESG performance analytics & decision support
Convert data into business insight
Building blocks
ESG dashboards
Performance analytics
Risk insights
Scenario analysis
Benchmarking
Management reporting
Strategic decision support
Key questions
Are we using ESG data to improve decisions?
Does sustainability information influence strategy?
↓
7
Assurance & verification
Build confidence in ESG information
Building blocks
Internal assurance
External assurance
Evidence management
Audit readiness
Control testing
Verification processes
Key questions
Can stakeholders trust our disclosures?
Are we prepared for mandatory assurance?
↓
8
Reporting, disclosure & communication
Communicate credible sustainability performance
Building blocks
Annual sustainability reporting
Regulatory disclosures
Investor communication
Sustainability statements
Website disclosures
Stakeholder communication across CSRD/ESRS, ISSB, GRI, CDP, TNFD
Key questions
Are disclosures transparent and decision-useful?
Are claims aligned with evidence?
↓
9
Continuous improvement & ESG data evolution
Strengthen the system over time
Building blocks
Lessons learned
Methodology updates
Technology improvements
Regulatory monitoring
Data maturity assessment
Reporting evolution
Key questions
Is our ESG information system improving?
Are we ready for future requirements?
↓
Outcomes
Trusted ESG information
Regulatory readiness
Better strategic decisions
Improved stakeholder confidence
Stronger risk management
Sustainability integrated into enterprise management
Section 4 - Relevant Frameworks
All framework references link to the original source document. Scores and assessments in this OS are based on official texts only.
Sustainability Reporting & Disclosure
IFRS S1 & S2
IFRS Sustainability Disclosure Standards
ISSB - International Sustainability Standards Board
↗
CSRD / ESRS
European Sustainability Reporting Standards
EFRAG - European Financial Reporting Advisory Group
↗
GRI Standards
Global Reporting Initiative Standards
Global Reporting Initiative
↗
CDP
CDP Disclosure Framework
CDP - Carbon Disclosure Project
↗
TNFD
TNFD Recommendations
Taskforce on Nature-related Financial Disclosures
↗
ESG Data & Measurement