The Safety-Critical Software Gap Scan is a program checkup offered as a defined-scope engagement. For SafeCode's broader certification planning and process strategy services, see certification planning and process strategy.

Visible progress can conceal serious weaknesses

In safety-critical and regulated software development, a program can appear to be moving well while important foundations are quietly deteriorating. Traceability may be incomplete. Documentation may have drifted from implementation reality. Verification support may be thinner than the assurance level requires. Lifecycle practices may exist more as shared expectations than as consistently applied discipline. These weaknesses often remain tolerable — until integration pressure, quality escapes, or formal review begins to expose them.

By that point, correction is no longer inexpensive. Rework competes with schedule. Gaps that would have taken days to close during development take weeks or months to address under deadline. The Safety-Critical Software Gap Scan is designed to reveal those weaknesses while there is still practical room to correct them.

What the gap scan is — and is not

The gap scan is not a formal audit and does not attempt to produce certification findings. It provides an experienced external perspective on whether the current effort appears to be developing on a stable and defensible footing — across engineering discipline, traceability, verification support, documentation alignment, and process integrity. It is applicable to programs under DO-178C, IEC 62304, IEC 61508, or analogous regulated development frameworks.

Half-day scan

The half-day format is best for a bounded look at one major concern area or a limited sample of project artifacts. It is intended to identify the most visible or likely weaknesses in a defined slice of the effort and to indicate whether that area appears stable or at risk of accumulating avoidable trouble.

Typical half-day activities include:

• Review of a small set of lifecycle artifacts before the session.
• Discussion of the project's assurance context and current development approach.
• Identification of likely gaps in lifecycle discipline, technical documentation, or verification support.
• Concise observations about where hidden risk may be accumulating.

Full-day scan

The full-day format is better when the project needs a broader review across several dimensions of engineering and process integrity. It allows more substantial artifact review, more complete consideration of how process expectations map to actual project behavior, and more developed guidance on where corrective attention is likely to have the greatest value.

Typical full-day activities include:

• Broader review of requirements, plans, architecture materials, verification artifacts, or process documents.
• Examination of whether current practices appear likely to support defensible development and later review.
• Identification of higher-risk disconnects between process, implementation, and evidence.
• More developed recommendations for stabilizing the effort and reducing future rework.

Common questions

When is the right time for a gap scan? The gap scan is most valuable while the program is still in active development — when gaps can be closed as a matter of normal engineering work rather than late-stage remediation. If the program is already approaching a formal review milestone, a more comprehensive assessment of certification posture is likely the more appropriate starting point. SafeCode can help determine which engagement fits the program's situation.

What are the signs a safety-critical software program needs a gap scan? The most common triggers are a nagging concern that the effort may be drifting out of alignment, a change in assurance level or applicable standard mid-program, a team transition that has left process continuity uncertain, or leadership that needs an objective external view before committing to a schedule or review date. A gap scan is also useful when a program has been moving fast and has not had time to verify that its foundations have kept pace with its progress.

What should I prepare before a safety-critical software gap scan? A representative sample of lifecycle artifacts — plans, requirements, architecture documents, verification records, or process documentation, depending on the area of focus. For the half-day format, a small targeted set is sufficient. For the full-day format, a broader cross-section across multiple development dimensions is more useful. SafeCode will identify what is needed before the session begins.

Does the gap scan produce a written report? The gap scan produces concise written observations and findings. For programs that need a more formal assessment with a structured report, prioritized findings summary, and recommended action roadmap, the Certification Readiness Assessment is the appropriate engagement.

How is the gap scan different from ongoing process support? The gap scan is a defined-scope, time-boxed engagement with a specific diagnostic purpose. It is not a substitute for ongoing process oversight or certification planning support. Programs that need sustained process support or are building their certification foundation from the ground up should see certification planning and process strategy.

Contact SafeCode Consulting to discuss whether a gap scan is the right fit for your program's current situation.