Network & Security Architecture Diagram

Detailed Technical Specification Network and Security Architecture Diagram ([login to view URL]) 1. Purpose The purpose of this task is to create a professional, audit-ready network and security architecture diagram that provides a clear logical overview of the company’s IT environment. The diagram will be used in formal documentation contexts such as: Compliance and suitability documentation Security overview materials Vendor or government review processes The output must be visually clear, structured, and professional. 2. Scope The diagram is a logical architecture representation and must focus on: Trust zones Security boundaries Access flows Control layers Cloud dependencies The diagram must not include low-level technical details such as IP ranges, ports, or VLAN identifiers. 3. Deliverables The contractor must provide the following: Editable [login to view URL] file (.drawio) High-resolution PNG (minimum width 3000 px) Vector PDF Preferred additional deliverables: SVG export Monochrome version for printing 4. Layout Requirements 4.1 Orientation The diagram must follow a horizontal left-to-right flow representing access progression. 4.2 Grid and Alignment All elements must be aligned on a grid with consistent spacing between zones and components. 4.3 Visual Hierarchy The diagram must clearly differentiate between: Security zones Trust boundaries Logical layers 5. Security Zone Model The diagram must contain four primary zones and one logical identity layer. 5.1 Zone: External Networks (Untrusted) Title Internet / External Networks Description Represents all external and untrusted connectivity. Components Internet Customer or government networks External services Visual treatment Use a subtle red background tone to indicate untrusted environment. 5.2 Zone: Perimeter Gateway (Security Boundary) Title Perimeter Gateway Device representation Single device that combines: Firewall Network address translation Remote access VPN Firewall and VPN must be shown as functions of the same device. Label Perimeter Gateway (Firewall and VPN) Functional annotations Stateful inspection NAT Remote access VPN Visual treatment Light orange background. 5.3 Zone: Internal Network (Trusted) Title Internal Network (LAN) Description Represents the trusted network environment. Components Office LAN or WLAN Visual treatment Light green background. 5.4 Endpoint Layer Component Corporate Devices (MacBooks) Attributes Full disk encryption (FileVault) Endpoint protection (antivirus or anti-malware) Regular patching and updates Endpoints are connected to the internal network. 5.5 Identity and Access Layer (Logical) Title Identity and Access Management Technology Microsoft Entra ID Functions Authentication Multi-factor authentication Role-based access This is a logical layer positioned between endpoints and cloud services. 5.6 Zone: Cloud Services Title Cloud Services (Microsoft 365) Description Represents primary service and data environment. Components Email services Document storage Collaboration services Visual treatment Light blue background. 5.7 Security and Monitoring Layer Title Security and Monitoring Components Microsoft 365 security capabilities Logging and audit functionality This may be placed within the cloud zone as a sub-layer. 6. Connection Model The following connections must be explicitly represented: External Networks to Perimeter Gateway Perimeter Gateway to Internal Network Internal Network to Corporate Devices Corporate Devices to Identity Layer Identity Layer to Cloud Services Cloud Services to Security and Monitoring Directional arrows must indicate the logical flow. 7. Arrow and Connector Rules Use straight connectors Avoid crossing lines Use consistent arrow style Maintain equal spacing 8. Typography Use a professional sans-serif font Maintain three levels of hierarchy: Zone titles Component labels Functional annotations 9. Color Guidelines External zone: light red Perimeter zone: light orange Internal zone: light green Cloud zone: light blue Colors must be subtle and professional. 10. Level of Detail The diagram must: Remain clear and readable Avoid unnecessary technical detail Focus on architecture and security 11. Quality Criteria The final diagram must: Clearly show trust boundaries Provide a logical and intuitive flow Maintain visual balance Be understandable without additional explanation 12. Acceptance Criteria The deliverable will be accepted when: All required zones are present Firewall and VPN are correctly combined into one perimeter device Identity layer is clearly represented Cloud services are separated from internal network Flow is logically correct Layout is clean and professional 13. Context for the Contractor The diagram will be reviewed by: Technical reviewers Security stakeholders Procurement or compliance personnel Therefore the diagram must appear neutral, structured, and professional.

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