Aerospace certification & critical systems
Engineering certainty
into critical systems.
We help aerospace and regulated engineering teams turn complex standards into traceable plans, defensible evidence and audit-ready delivery.
Systems Software · Hardware · Safety · Cybersecurity
Presence Istanbul · Hamburg · Rotterdam · Dubai
Certification services
One assurance chain.
No disconnected disciplines.
System safety decisions flow into software, hardware and cybersecurity evidence. Our service architecture follows the same chain.
Software design assurance
DO-178C
Lifecycle planning, traceability, verification and audit-readiness support for airborne software—structured around the objectives appropriate to your software level.Hardware design assurance
DO-254
End-to-end design assurance for airborne electronic hardware, from PHAC planning through requirements, implementation, verification and certification liaison.Aircraft & system development
ARP 4754A
Requirements allocation, development assurance and validation support connecting aircraft-level functions to hardware and software implementation.Safety assessment
ARP 4761
A structured safety assessment path from Functional Hazard Assessment through PSSA and SSA, with traceable assumptions and design mitigations.Information security management
ISO 27001
Practical ISMS design, risk treatment, control mapping and audit-readiness support grounded in your real operating environment.Cybersecurity governance
NIS2
Management-focused readiness assessments that connect NIS2 obligations with risk governance, incident response, supply-chain assurance and ISO 27001 controls.Built around the evidence
A practical path from safety intent to certification data.
We make the relationships between ARP 4761, ARP 4754A, DO-178C and DO-254 explicit—so requirements, assurance levels, verification and change remain connected.
- 01
Frame
Certification basis, system boundary and assurance level.
- 02
Plan
Lifecycle, roles, evidence, tools and authority touchpoints.
- 03
Verify
Traceable reviews, analyses, tests and controlled results.
- 04
Defend
An evidence set that stays coherent through audit and change.
Evidence before adjectives
Clear scope. Named sources.
Traceable ownership.
Broad superlatives and unsupported affiliation claims are excluded. Technical pages show their standards basis, expected outputs and Musa Toktaş as the sole CMS author.
Named author and editorial accountability
Every language version is connected to Musa Toktaş, its publication record and source set. Independent review is never implied from an update date.
Meet the author ↗DeliveryEvidence model
See how engagement evidence is structured without inventing client claims.
View the framework ↗TrainingStandards into practice
Explore training ↗Heraklet Academy
Technical notes designed
to be cited and used.
DO-178C DAL Levels Explained
A practical guide to software levels A through E, failure-condition mapping, objective counts and independence expectations.
Read note ↗DO-178C Planning Documents: PSAC, SDP, SVP, SCMP and SQAP
How the five core plans fit together, what reviewers expect and where planning sets commonly contradict themselves.
Read note ↗Future of DO-178C: What Is Changing Around the Standard
The standard remains foundational while model-based methods, automation, cybersecurity interfaces and assurance evidence evolve around it.
Read note ↗Start with a technical conversation
Put your certification path on firmer ground.
Tell us the standard, lifecycle stage and evidence challenge. We will help frame a focused next step.
info@heraklet.com ↗