Start with what you know
Enter the product scope, the ASIL established by your analysis and the status of your existing documents.
Example input: safety goals available; functional safety concept still in progress.
ISO 26262 Academy · Safety Case Tailoring · Expert plan
Know what your safety case needs next.
Turn your project details into a practical ISO 26262 roadmap: the documents to prepare, the evidence still missing and the work to prioritise, with an argument outline that links each claim to the work product meant to support it.
- 6 outputs per plan
- GSN argument outline
- Markdown + JSON export
- Versioned rules and catalogues
Included in Expert. A planning and learning tool: the generated plan is a starting point, not evidence and not an approved safety case.
Your starting pointProject scope + ASIL + existing evidence
Your tailored roadmap
- PrepareApplicable work products
- PrioritiseGaps and next actions
- ConnectSafety claims and evidence
A concrete example
You have safety goals. What comes after them?
Imagine a team beginning system development. It has a hazard analysis and safety goals, but its supporting documents are incomplete.
Find the evidence gaps
The plan organises applicable work products and shows where evidence is missing or incomplete, alongside prerequisites and methods.
Example review: what must the functional safety concept contain, and what depends on it?
Leave with a next step
Use the priorities and learning links to prepare the next work product. Develop the evidence behind each claim in the argument outline.
Example action: develop and review the required safety behaviour before detailing its technical implementation.
Illustrative workflow, not a generated result for a real project. Your recommendations depend on your inputs and require engineering review.
What you get
A roadmap you can work through.
The plan helps organise the engineering work. The safety argument outline shows how that work is intended to support your claims.
Work products
Know what to prepare
See applicable documents grouped by development phase, with prerequisites, priorities and guidance on their contents.
Evidence gaps
See what is still missing
Map the documents you already have to the plan. Distinguish completed work from missing, in-progress or blocked items.
Methods & reviews
Understand the expected rigor
Review methods, confirmation measures and verification guidance selected for your scope and ASIL.
Timeline & priorities
Decide what to tackle next
Use the phase timeline, quality gates and prioritized next actions to identify a workable order.
Safety argument
Connect claims to evidence
Develop a Goal Structuring Notation (GSN) outline that links safety claims to the work products intended to support them.
Comparison & export
Revisit your assumptions
Compare saved attempts when inputs change. Export Markdown for a readable document or JSON for structured reuse.
Before you start
Clear inputs. Traceable guidance.
Useful for engineers learning safety case planning and for teams organising their evidence. The tool uses versioned catalogues and rules to generate its recommendations, and every output records which versions and rules selected it.
What the generator asks for
- Product type, development phase and scope
- ASIL status: established, assumed or undecided
- Architecture and verification arrangements
- Existing documents and their status
- Your own safety goals, when available
Safety case FAQ
Straight answers about the generator.
What a safety case is, what tailoring means here, what you need, and what the output does not claim.
What is a safety case?
A safety case connects a safety argument to supporting evidence, such as analyses, requirements, tests and review records. The generator gives you a plan for assembling that evidence and an argument outline to develop further.
What does “tailoring” mean here?
The tool uses your project type, Automotive Safety Integrity Level (ASIL), development scope and existing documents to select relevant work products and methods. You review a plan for your context instead of starting with an undifferentiated checklist.
What do I need before I start?
Describe your product type, development phase, ASIL status, architecture, verification arrangements and existing documents. You can record an assumed or undecided ASIL; the tool does not replace the hazard analysis needed to establish it. Add your own safety goals when available. Otherwise the argument outline uses clearly marked example goals.
Which plan includes it?
Safety Case Tailoring runs on any signed-in Academy account, including a free one, and there is no limit on how many plans you generate. What a paid plan adds is the library the generated plan points you at: the concept guides, work product templates and process descriptions behind each recommended work product. Check the pricing page for what each plan includes.
Does it cover hardware and software planning?
Depending on your scope and ASIL, the output includes hardware safety metric targets, software verification guidance, confirmation measures and ASIL decomposition guidance. These help identify the analyses and evidence to prepare; they do not perform or validate the underlying engineering analyses.
Can I change the inputs or export the result?
Yes. Save attempts, regenerate with changed inputs and compare scenarios. Export the plan as Markdown or JSON. The output records catalog versions and rule references so you can trace how recommendations were selected.
Does the generated plan prove compliance?
No. This is a planning and learning tool. An outline is not completed evidence or an approved safety case. Qualified engineers must review its applicability, develop and verify the work products, and use the ISO 26262 standard as the authoritative reference.
Build a clearer plan
Give your safety work a starting point.
Choose Expert for the generator, or explore the concepts behind safety requirements first. The free plan includes a full concept guide, 3 templates, 1 process, the Markov simulator and 5 practice exams a month.