Development When Certification Becomes the Critical Path in Aerospace

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Fastems Systems GmbH

item Industrietechnik GmbH

As aerospace systems become increasingly software-driven, certification is emerging as a critical factor in development schedules. Digital continuity and end-to-end traceability can help integrate compliance into engineering processes, reducing delays and improving certification readiness.

Developing aerospace products today looks very different than it did just a few years ago. Products are increasingly shaped by software and interconnected architectures that continue to evolve throughout development. Engineering organisations have responded with more integrated, model based processes in which changes can be tracked against an evolving product representation.

Certification often follows a different rhythm. Regulatory evidence is still frequently prepared for formal reviews and assembled into documents that summarise work after it has taken place. This creates distance between the current engineering state and the representation submitted for approval. When evidence has to be reconstructed late in a program, teams must determine how a requirement was implemented, whether previous verification is still valid after a change, and which product state the evidence refers to. As complexity grows, certification can therefore become the critical path.

Compliance needs to develop with the product

A more digital approach starts earlier. Regulatory requirements should become part of the engineering process as soon as they begin to influence the system. Their relationship to implementation and verification needs to remain visible while the product changes. This is particularly important for software. A relatively small code change can affect behaviour elsewhere in the system or invalidate previous verification work. Engineers therefore need to understand the impact before they can decide whether existing evidence remains sufficient. If this context is preserved digitally, the assessment can take place during development instead of being reconstructed at the next certification milestone. Continuous traceability also makes missing evidence or inconsistencies visible while the relevant engineering context is still current.

Traceability improves program predictability

Certification delays can affect release schedules, postpone entry into service, and trigger additional engineering work late in a program. A connected evidence chain gives teams a clearer view of whether the information required for a specific configuration is complete and current. It also changes how progress can be assessed. Instead of relying primarily on finished document packages, organisations can evaluate the maturity of the underlying evidence. When a change occurs, its consequences can be checked against the engineering record rather than investigated manually across disconnected sources. Program managers gain earlier visibility into potential certification bottlenecks, while engineers can address unresolved dependencies before they become formal findings.

ALM and PLM need a shared context

One practical challenge lies in the relationship between software development and the physical product definition. Application Lifecycle Management (ALM) structures the development and verification of software, while Product Lifecycle Management (PLM) governs the evolving product configuration. Certification depends on both because software behaviour has to be assessed in the context of the configuration in which it operates. If these domains remain disconnected, organisations have to recreate their relationships whenever changes cross system boundaries. This becomes especially difficult when software evolves more frequently than the surrounding hardware. Connecting ALM and PLM helps preserve the context required for impact analysis and certification.

The Intelligent Product Lifecycle (IPL) provides the principle behind this continuity. Engineering information remains connected as the product develops, allowing the relationship between requirements, implementation, verification, and approved states to remain understandable over time. The value lies in maintaining that context instead of rebuilding it for each review.

Regulators need access to engineering context

Certification authorities face the same rise in complexity as manufacturers. They need to assess increasingly software intensive systems while maintaining regulatory rigor. Their task becomes harder when the evidence they receive is mainly a static representation of a dynamic engineering process. Documents will remain important because certification requires formal records and clearly defined responsibilities. The difficulty arises when those records lose their connection to the engineering context from which they were created. A verification result, for example, has limited value if it is difficult to determine whether it still applies after a relevant change.

A more digital interaction model could preserve more of this context. Structured evidence with reliable version history and traceable relationships would allow specific certification questions to be examined with greater precision. It would give regulatory judgment a more transparent information base.

Digital certification starts inside engineering

Fully digital certification will not emerge through a single technology project. Aerospace organisations operate long running programs and complex tool environments that cannot be replaced at once. The practical starting point is digital continuity inside the engineering organisation. Information must remain connected as it changes over time. Approved configurations need to be unambiguous, and verification evidence must remain linked to the product state for which it was created. Once these foundations are in place, certification readiness can become part of everyday engineering instead of an activity concentrated around major review milestones. Digital systems can then help identify missing relationships or flag evidence that may have been affected by a change, reducing the manual effort required before engineers and regulators can make informed decisions.

Certification must become part of the development flow

As aerospace systems become more complex, certification can no longer depend on reconstructing engineering decisions after the fact. The information required to demonstrate compliance already originates inside the development process. The challenge is to preserve its context and keep it usable as the product evolves.

Closer integration between ALM and PLM provides an important foundation. Combined with continuous traceability, it helps organisations identify certification risks earlier, assess changes with greater confidence, and maintain a clearer view of readiness throughout development. The longer term objective is a certification process in which trusted digital evidence can move more directly between engineering organisations and authorities. Reaching that point will require common standards and close cooperation across the aerospace sector. For manufacturers facing growing complexity and continued pressure on development schedules, digital certification is becoming an essential engineering capability.