New content
Recent additions to the healthcare architecture resource library.
Building the NHS in Layers
Trace England’s digital health architecture from Information for Health to the Single Patient Record programme. Explore how shared services, local clinical systems and data capabilities evolved, where durable foundations emerged, and which coherence problems remain.
Explore the timeline → Critical review and interactive explainer · European health dataEHDS Specifications: Critical Review and Explainer
Explore primary-use and secondary-use architecture, specification maturity, implementation decisions and evidence requirements. Includes a searchable register, critical findings and an evidence planner. Evidence reviewed to 15 October 2026, with supplementary checks on 16 October.
Explore the review → Interactive explainer · Healthcare data architectureUnderstanding Data Vault 2.0 in Healthcare
A guided introduction to hubs, links and satellites, using synthetic healthcare records to explore new sources, corrections, preserved history and multiple analytical outputs. No prior knowledge required.
Explore the explainer → Interactive explainer · Patient identity and national EHREMPI and National EHR
An interactive guide to patient identity, cross-organisational record linkage, matching uncertainty and the governance needed for a national Electronic Health Record.
Explore the explainer → Interactive explainer · Metadata and data governanceData Dictionary and Metadata Registry Explainer
A practical guide to how registered definitions, dictionary entries, data assets, terminology, reference data and data contracts fit together.
Explore the explainer → Strategy and web report · National health metadataMetadata Management for a National Health Service
A revised Version 1.0 candidate strategy for governing shared semantic and descriptive metadata as national infrastructure, with a metadata registry, machine-actionable metadata, governance and an evidence-led pilot.
Read the strategy → Explainer and web report · UK health data standardsMaking UK Core Genuinely Core
An explainer of the proposed shared register of health data meaning beneath FHIR UK Core, covering architecture, four-nation governance, staged delivery and evidence limits.
Read the report → Interactive catalogue · NHS acute trustsClinical Information Requirements Catalogue Explorer
Explore 189 draft clinical information requirements by domain, criticality and pathway use. Compare requirements and examine candidate terminology and standards mappings, with their validation limits made explicit.
Explore the catalogue → Working proposal · NHS EnglandTrust Metadata and Reference Data Strategy
A practical proposed approach to ownership, code lists, terminology updates and mappings in an NHS trust. The illustrative strategy sets out governance roles, controlled change, a 24-month roadmap and the decisions needed in the first 90 days.
Read the strategy →Focused expertise at the joins between strategy, information, technology and delivery.
The practice is most useful where a problem crosses organisational or disciplinary boundaries and needs both strategic judgement and technical depth.
Enterprise architecture
Capability models, target operating models, architecture assurance, repositories and transformation roadmaps.
Explore service →Health data architecture
Metadata, standards, semantic interoperability, information models, governance and data reuse.
Explore service →Interoperability
Clinical information flows, FHIR, HL7, IHE, terminology, integration and cross-organisational exchange.
Explore service →Secure data environments
ISO 27001-aligned architecture, research environments, information governance and controlled data use.
Explore service →AI-enabled architecture
Evidence-led use of generative AI for analysis, modelling, assurance and architecture publication.
Explore service →Transformation readiness
EPR readiness, clinical pathways, dependencies, implementation risk and transformation planning.
Explore service →Practical resources for healthcare architecture and data decisions.
The public knowledge base now includes navigators, comparative reference atlases, maturity assessments and workshop tools.
Healthcare Standards Navigator
A broad decision aid for navigating healthcare standards, frameworks and use-case combinations.
Open navigator →NavigatorModern NHS Digital Workforce Navigator
Compare specialist digital, data, architecture, AI and clinical informatics roles, recruitment pressure and substantive versus contract resourcing.
Open navigator →Reference atlasUK Secondary Care Integration Reference Atlas
Compare national integration capabilities and data flows across the four UK nations, including EHDS architectural alignment.
Open atlas →Assessment toolHealth Data Operability Maturity Assessment
Assess whether data remains interpretable and usable as it moves across systems, organisations, transformations and time.
Open assessment →Independent senior expertise with unusually broad healthcare context.
Dr Tito Castillo brings together enterprise architecture, health data, scientific computing, clinical research, regulated software, interoperability and national-scale digital transformation.
Need senior architecture and data expertise without adding another layer of programme bureaucracy?
Engagements can range from focused independent review to embedded architecture and data leadership.