Traceability Has Three Different Users – System Design and Requirements Engineering III
Stop Treating Traceability as a Single Activity and Start Designing Targeted Access for the Three Fundamentally Different Ways Your Teams Work

In Part 3 of this mini-series by Iain Cunningham, we reveal why treating traceability as a one-size-fits-all activity fractures trust and stalls progress.
You build complex systems to solve the challenges of tomorrow. When intent fades and toolchains disconnect, traceability often becomes a source of frustration rather than confidence. We believe that engineering demands clarity, not guesswork. Discover why treating traceability as a single activity fails, and learn how to design access that respects the three fundamentally different ways roles interact with your architecture.
Which Part of Traceability Frustrates You Most Today: Creating It, Using It, or Trusting It?
In the previous article, we explored why a single interface for every role in an organization often increases complexity instead of reducing it. To move forward, it helps to separate a common assumption from reality. Traceability is often treated as a single activity. In reality, it is not. It consists of three fundamentally different interactions. This matters because a practical way to reduce drift is to design explicitly for all three interactions, rather than assuming one approach will work for everyone.


The Three Core Interactions of Traceability
- Requirements engineers need to create and maintain traceability links with precision, ensuring relationships between requirements, models, and design artifacts remain intact across tools and integrations.
- Downstream engineering and validation roles need to assess impact and coverage during change, relying on traceability to understand what is affected, which test cases apply, and what remains unverified.
- Decision makers and compliance stakeholders need to confirm both intent and verification with confidence, trusting that traceability reflects both the correct structure and the correct version across organizational boundaries.
When these interactions are not clearly understood and supported, friction increases. Occasional users avoid the system. Exports multiply. Trace links become stale or are lost in a sea of spreadsheets. Requirements engineers, once again, become the interpreters of last resort, expected to explain both intent and whether it has actually been verified.
At a deeper level, this should not be necessary. Engineering should not depend on repeatedly reconstructing context just to make decisions.
When these three interactions are supported intentionally, reviews focus on decisions and intent rather than reconstructing context. Coverage becomes clear, and verification evidence becomes reliable. Requirements engineers spend less time explaining and defending meaning, and more time engineering it. The key implication is simple: access to traceability must be designed differently for each interaction if you want the system to be used and trusted.
At this point in this series, the underlying pattern should be clear. Traceability only works when it reflects how different roles actually interact with it. Any solution must reflect that reality.
As a starting point, which of these three interactions creates the most friction in your organization today?
Join the conversation and help shape the future of system design. Follow Iain Cunningham on LinkedIn and share your experiences in the comments of his original article.