Expertise

Everything the assessor
will ask for.

We produce, manage and defend the complete set of RAMS lifecycle deliverables, from the first preliminary hazard analysis to the final safety case that puts a driverless train into revenue service.

ATI // V-MODEL · EN 50126 LIFECYCLE SIL 0-4
VALIDATION VERIFICATION V&V SYSTEM DEF & RISK PHA · hazard log opened ACCEPTANCE & OPS final safety case · ISA sign-off SYSTEM REQTS RAMS targets · SHA / SSHA SYSTEM VALIDATION V&V reports · design safety case ARCHITECTURE & APPORTIONMENT SIL allocation · interface hazards INTEG & TEST test reports · FMEA closure DETAILED DESIGN FMEA / FMECA · fault trees MODULE TEST coverage evidence IMPLEMENTATION (SIL 0-4) EN 50128 software assurance SYS DEF & RISK SYSTEM REQTS ARCHITECTURE DETAILED DESIGN IMPLEMENTATION (SIL 0-4) MODULE TEST INTEG & TEST SYS VALIDATION ACCEPTANCE & OPS
01 · RAMS lifecycle deliverables

Every artefact, audit-ready.

Four families of evidence, produced and managed across the whole lifecycle, and defended in front of the Independent Safety Assessor or Notified Body.

01 / PLAN

Plans

The documents that define how safety will be achieved before a single line of code exists.

  • Safety Plans & RAM Plans
  • V&V Plans
  • Test Plans
  • Safety management & organisation
02 / ANALYSE

Hazard & reliability analyses

Systematic identification of everything that can go wrong, and proof of what keeps it from happening.

  • PHA · SHA · SSHA · O&SHA
  • FMEA / FMECA
  • Fault Tree Analysis
  • Hazard log management
03 / VERIFY

V&V evidence

Independent confirmation that the system was built right, and that the right system was built.

  • Verification & validation reports
  • Test reports & coverage evidence
  • Requirements traceability
  • Independent witnessing of tests
04 / CERTIFY

Safety cases & certification

The structured argument, per EN 50129, that convinces an independent assessor to sign.

  • Design Safety Cases
  • Final / Generic / Specific Application Safety Cases
  • ISA & Notified Body interface management
  • Cross-acceptance support
02 · Signalling technologies

Fluent in the platforms that run driverless.

Deep, hands-on familiarity with the signalling technologies behind modern automated metros and North American rail.

/ATC

Driverless ATC · Microlok

Fully automated (GoA4) train control built on Microlok interlocking technology, certified into revenue service on multiple metros.

/CBTC

CBTC Systems

Communications-based train control with moving-block operation, the backbone of high-frequency automated metro lines.

/PTC

PTC · United States

Positive Train Control under the FRA regulatory framework, including 49 CFR Part 236 Subpart H product safety plans.

03 · Standards & regulations

The rulebooks we work to.

Standard Domain What we deliver against it
EN 50126 Railway RAMS Full lifecycle RAMS management, targets & demonstration
EN 50128 Railway software Software assurance evidence, SIL 0-4 V&V
EN 50129 Railway safety cases Design & final safety cases, safety approval support
CSM-RA EU risk assessment Risk assessment per Common Safety Methods, AsBo interface
49 CFR 236H FRA · United States Product Safety Plans & supporting safety analyses
IEC 61508 Functional safety SIL determination & functional safety assessment
IEC 62304 Medical software Software lifecycle processes & V&V evidence
ISO 14971 Medical risk Risk management files for life-critical devices
IEC 61513 Nuclear I&C Safety-classified system assurance & qualification
Scope a project

Somewhere in this list is the deliverable keeping you up at night.

We've written it, reviewed it, or defended it before. Tell us where you're stuck.

>> Talk to ATI