Proof Layer
A structured evidence catalogue demonstrating capability, compliance, and credibility across five domains. Each piece of evidence shows what it proves and how it supports transformation planning and grant applications.
Architecture
Enterprise Architecture As-Is Report
Documents the existing enterprise architecture landscape, including systems, integrations, and dependencies. Provides baseline for transformation planning.
Data Centre Strategy Report
Outlines infrastructure modernisation approach and future-state data centre architecture. Evidences technical scalability planning.
Network Architecture Report
Details network design, security zones, and connectivity architecture. Validates technical foundation for operational systems.
System of Systems, Data Flow and System Interface Design Report (Concept EA)
Conceptual view of system interactions and data flows across the enterprise. Shows integration architecture thinking.
CAG Technical Standards
Provides technical design and implementation standards across the enterprise. Underpins consistency and maintainability.
System of Systems, Data Flow and System Interface Design Report (Schematic EA)
Detailed schematic representation of enterprise architecture and interfaces. Supports technical validation and planning.
The Open Group extract of design principles publication
Aligns enterprise architecture approach with recognised industry frameworks. Shows adherence to best practice.
Data
Data Management Plan
Defines data ownership, governance structures, and management processes. Demonstrates commitment to data quality and compliance.
CAG's Data Quality Handbook
Establishes data quality standards and validation procedures. Shows operational rigour in data handling.
EDP Data Standards
Specifies data standards and formats for enterprise data platforms. Ensures consistency and interoperability.
Resilience & Security
Business Continuity & Disaster Recovery Strategy Report
Demonstrates comprehensive planning for operational continuity and recovery scenarios. Shows risk mitigation and business resilience capability.
Cyber Security Management Plan
Details security controls, threat management, and compliance measures. Shows alignment with security best practices.
Enterprise Resiliency Design Report
Describes resilience architecture patterns and failover mechanisms. Validates technical robustness.
Delivery & ORAT
Enterprise Delivery, Test & ORAT Strategy report
Sets out operational readiness and acceptance testing approach. Validates readiness for live operations.
Implementation Strategy
Outlines phased approach to programme delivery. Demonstrates realistic planning and sequencing.
Interface Management Plan
Describes how system interfaces are identified, designed, and managed. Shows governance of integration points.
Interface Matrix and Register
Catalogues all system interfaces with ownership and status. Provides traceability of integration dependencies.
Lead IT Scope of Work
Defines IT delivery responsibilities and boundaries. Clarifies accountability and scope for technology work packages.
Corporate
CAG Annual Report 2023/2024 – Rediscovering the Magic of Travel
Shows strategic direction, financial health, and operational performance. Provides corporate context and credibility.
CAG Annual Report 2022/2023 – A Year of Recovery
Documents recovery trajectory and strategic positioning post-pandemic. Evidences organisational resilience.