Microservices for UK LogTech -- Compliance Built In

LogTech Microservices UK Architecture Patterns

UK LogTech microservices in 2026 are shaped by four UK-specific integration requirements: (1) HMRC CDS (Customs Declaration Service -- every goods import/export API), (2) DVSA OCRS (Operator Compliance Risk Score -- hauliers with poor DVSA scores face roadside checks), (3) DVLA VRM API (vehicle registration data -- fleet management), (4) UK Border Force advance cargo notification. Microservices: freight-declaration-service (HMRC CDS), vehicle-compliance-service (DVSA OCRS + DVLA VRM), route-planning-service (HERE Maps + ferry timetables), driver-hours-service (EU/UK tachograph rules -- Great Britain Working Time Directive for drivers).

HMRC CDS Microservice Design

HMRC CDS (Customs Declaration Service) microservice: isolated service handling all HMRC CDS interactions. Design: (1) CDS declaration event (goods to be imported -- create CDS frontier declaration), (2) CDS status polling (declaration accepted/rejected/queried by HMRC), (3) CDS duty calculation (tariff code lookup -- HMRC Trade Tariff API), (4) CDS duty payment (duty deferment account or immediate payment), (5) CDS release notification (goods cleared -- release to warehouse). Event-driven: all CDS events published to SQS FIFO (exactly-once) -- downstream freight management service consumes. Idempotency: every CDS submission has an idempotency key (duplicate submissions are safe -- CDS returns existing declaration status).

DVSA Driver Hours and Tachograph Service

Driver hours service: UK and European driver hours rules (EU Regulation 561/2006 -- UK retained). Key rules: (1) 9-hour daily driving limit (extendable to 10 hours twice per week), (2) 4.5 hours continuous driving (mandatory 45-minute break after 4.5 hours), (3) 56-hour weekly driving limit, (4) 90-hour fortnightly driving limit. Digital tachograph: (1) driver card data download (DTCO smart tachograph -- download every 28 days), (2) tachograph analysis (infringement detection -- automated alert), (3) DVSA OCRS impact (tachograph infringements affect OCRS -- monitored in compliance microservice). Working Time Directive for road transport workers: additional 48-hour weekly limit -- different calculation from driving hours.

LogTech Microservices Event-Driven Architecture

UK LogTech event-driven: (1) shipment-created event (new shipment booking -- triggers customs declaration, route planning, driver assignment), (2) customs-cleared event (HMRC CDS release -- triggers warehouse release, customer notification), (3) vehicle-departed event (GPS/tachograph data -- triggers driver hours tracking, ETA update), (4) delivery-confirmed event (POD -- Proof of Delivery -- triggers invoice generation, HMRC export declaration). Choreography vs orchestration: ClickMasters LogTech default -- choreography (services react to events via SQS/SNS, no central orchestrator) for simple linear flows, Temporal workflow orchestration for complex multi-step customs processes (HMRC CDS + Bond + ETSF release).

HMRC CDS

UK Border Force

DVSA

DVLA

GDPR

Cyber Essentials Plus

ISO 27001