This work package provides organisations with expert guidance to design and implement a Zero Trust Architecture (ZTA) using the Zachman Enterprise Architecture Framework. It integrates Zero Trust principles — continuous verification, least‑privilege access, micro‑segmentation, identity‑centric security — into Zachman’s holistic, multi‑perspective architecture matrix.
The service ensures Zero Trust is fully traceable across business, data, application, technology, people, and operational perspectives, enabling a modern, resilient, and risk‑aligned security posture across hybrid and multi‑cloud environments.
Assess current enterprise architecture maturity using Zachman and Zero Trust principles.
Develop a Zachman‑aligned Zero Trust Reference Architecture.
Integrate Zero Trust into all six Zachman perspectives (Planner → Worker).
Reduce implicit trust, lateral movement, and identity‑related risks.
Improve visibility, monitoring, and adaptive access enforcement.
Deliver a phased Zero Trust transformation roadmap aligned to Zachman’s structure.
A Zachman‑aligned Zero Trust maturity assessment.
A Zero Trust Reference Architecture mapped to all Zachman cells.
Hardened identity, device, network, application, and data controls.
Updated governance, policies, and operational processes.
Improved detection, response, and automation capabilities.
A multi‑phase Zero Trust transformation roadmap.
Below is the full Zero Trust architecture scope mapped to the Zachman rows.
Purpose: Define the Zero Trust vision, scope, and business context.
Activities:
Identify business drivers, mission, and critical assets.
Define Zero Trust business outcomes and success criteria.
Establish Zero Trust principles and governance.
High‑level mapping of Zero Trust to organisational strategy.
Stakeholder identification and impact assessment.
Deliverables:
Zero Trust Contextual Architecture
Business Motivation & Drivers Pack
Purpose: Define Zero Trust from a business perspective.
Activities:
Business process mapping with Zero Trust controls.
Business capability modelling for identity, data, and access.
Conceptual trust zones and segmentation models.
Business‑level policies and conceptual security services.
Deliverables:
Zero Trust Business Architecture
Conceptual Trust Model & Business Capability Map
Purpose: Define logical Zero Trust models and policies.
Activities:
Logical identity, device, network, application, and data models.
Logical PDP/PEP architecture.
Logical segmentation and access control models.
Logical data protection and classification models.
Logical monitoring, analytics, and automation models.
Deliverables:
Logical Zero Trust Architecture
Logical Control & Policy Models
Purpose: Translate logical models into technology‑agnostic designs.
Activities:
Physical architecture for Zero Trust enforcement.
Physical segmentation and trust boundary design.
Physical identity, device, network, and data protection patterns.
Cloud and hybrid Zero Trust patterns (Azure/AWS/GCP).
Physical telemetry, SIEM, SOAR, and automation design.
Deliverables:
Physical Zero Trust Architecture
Technology‑Agnostic Design Patterns
Purpose: Select and design specific technology components.
Activities:
Technology selection for Zero Trust capabilities:
IAM, PAM, IdP, MFA
EDR/XDR
SD‑WAN, SASE, ZTNA
SIEM, SOAR, UEBA
Cloud security platforms
Component‑level design for PDP/PEP, trust engines, telemetry.
Integration architecture for hybrid and multi‑cloud environments.
Deliverables:
Component Architecture Pack
Technology Mapping & Integration Blueprint
Purpose: Define operational processes, procedures, and continuous assurance.
Activities:
Operational processes for identity lifecycle, access reviews, threat detection, incident response.
Zero Trust operational playbooks.
Metrics, KPIs, and continuous improvement cycles.
Operational governance and assurance model.
Deliverables:
Zero Trust Operational Architecture
Operational Playbooks & Runbooks
Zachman Zero Trust Maturity Assessment Report
Zero Trust Reference Architecture Blueprint (Zachman‑aligned)
Business Capability & Process Mapping
Logical & Physical Architecture Packs
Component Architecture & Technology Integration Designs
Operational Architecture & Playbook Pack
Governance & Operating Model Framework
Executive Summary & Board‑Level Presentation
Zero Trust Landing Zone (cloud or hybrid)
Secure DevOps / DevSecOps Integration Guide
Continuous Zero Trust Monitoring Service
Zero Trust Incident Response Playbooks
Multi‑Cloud Zero Trust Architecture
Planner — Vision, scope, governance
Owner — Business architecture & conceptual trust models
Designer — Logical architecture & policy models
Builder — Physical architecture & design patterns
Sub‑Contractor — Component selection & integration
Worker — Operationalisation & continuous assurance
Optional: Continuous Zero Trust Assurance (subscription)
Lead Enterprise Architect (Zachman Practitioner)
Zero Trust Architect
Identity & Access Specialist
Network & Micro‑Segmentation Engineer
Cloud Security Architect
Governance & Risk Analyst
Project Manager
Fixed‑price for assessment, architecture, and governance phases.
Time & materials for engineering, integration, and hardening.
Subscription/retainer for continuous Zero Trust monitoring and assurance.
Access to enterprise architecture artefacts and security platforms.
Engagement with IT, security, and architecture teams.
Availability of existing Zachman artefacts and architecture diagrams.
Client commitment to governance and operational adoption.
Legacy systems incompatible with ZT → mitigated through compensating controls and phased migration.
Architecture sprawl → mitigated through Zachman matrix governance.
Identity sprawl → mitigated through governance and rationalisation.
Operational resistance → mitigated through training and clear operating models.