One voice, no noise.
A modern, agile-inspired framework that unifies disciplines and empowers engineers — for socio-cyber-physical systems of any scale.
Modern systems fail not because of a lack of expertise — but because that expertise is fragmented. 3SE was built to fix the four systemic fractures that slow teams down and let risks through.
Systems, safety, and security engineers work in parallel worlds — different teams, different vocabularies, different tools. Critical dependencies are missed. Integration happens too late, if at all.
ISO 15288, IEC 61508, IEC 62443, DO-178C… each standard speaks its own language. Without semantic alignment, compliance becomes a translation exercise rather than a quality driver.
Business, project, engineering, and asset management each pull in different directions. Decisions are made in isolation, and trade-offs remain invisible until they become failures.
Traditional frameworks prescribe how to work rather than what to achieve. Engineers are micromanaged instead of trusted. 3SE returns responsibility and flexibility to the people closest to the problem.
At the heart of 3SE lies a conceptual model that structures the engineering problem space into four interconnected domains — and maps the tensions between them.
These domains are linked by six trade-offs, all converging toward a single feasible design space: the solution that is technically sound, safe, and secure.
What is worth engineering, balancing investment against expected return
Technical feasibility and capability
Physical and digital assets, their properties and lifecycle
Work orchestration and delivery timeframe
3SE is not just a methodology — it is a framework. From formal ontology to hands-on tooling, everything is designed to work together.
A formal, shared vocabulary that aligns concepts across system, safety, and security engineering. One language for all disciplines — no translation, no ambiguity.
View the Ontology ↗Clearly defined engineering and support processes, each with associated roles, workflows, and templates — lean, adaptable, and built for agile contexts.
A structured language for expressing engineering artefacts consistently — from requirements to hazard analyses, from threat models to architecture decisions.
3SE's engineering language comes to life in JARVIS4SE — an open engineering tool that operationalises the full framework. Explore the documentation, start modelling, and put 3SE into practice immediately.
Open JARVIS4SE Documentation ↗A six-stage roadmap — from ad hoc to knowledge-based engineering — mapping the business gains at each level and the cost of staying behind. Built on 3SE to help organizations assess where they are and plan where to go.
Explore the Maturity Model ↗3SE is grounded in the values of the Agile Manifesto — adapted for the realities of safety- and security-critical system engineering. Rigour and agility are not opposites.
3SE is community-driven. Explore the framework, the language, and the tooling — and join the movement toward risk-centric integrative engineering.