What does a regulated systems architecture assessment do?
It examines systems architecture evidence in the context of the program's existing assurance regime, then quantifies cost and schedule exposure associated with coupling, change propagation, and evidence gaps. It does not certify the system, approve compliance evidence, or quantify safety or performance.
The useful question is not whether a standard can be converted into a universal risk score. It cannot. The useful question is whether a program decision relies on interfaces, assumptions, or evidence chains that are expensive to change or likely to delay an agreed milestone.
The assessment remains independent of implementation. The firm measuring the debt is not selling you the rebuild.
Start from the decision and its evidence
A board review, recovery plan, acquisition, or handover creates a specific decision boundary. The evidence review should be set by that boundary rather than by a generic document checklist.
Typical evidence can include system and software requirements, interface definitions, design decisions, change records, verification records, issue histories, and interviews with the engineers who own the relevant boundaries. Source access can improve coverage, but it is not the only way to establish a systems architecture relationship.
Missing evidence is recorded as a limitation or finding. It is not silently replaced by an assumption, and it is not treated as proof that a problem exists.
Five regime-specific questions
ZOYA does not publish one page per standard and change only the acronym. The regimes create different evidence questions, but the commercial decision remains the same: identify which systems architecture relationships create material cost and schedule exposure.
DO-178C systems architecture risk assessment
For an airborne-software program using DO-178C, the assessment examines where a systems architecture change crosses requirement, interface, ownership, and verification boundaries. The result is a decision record about cost and schedule exposure. It is not a certification finding and does not replace the program's authorized certification roles.
ISO 26262 systems architecture risk scoring
For a program using ISO 26262, a score is useful only when its evidence chain is visible. The assessment records which interfaces and assumptions connect a proposed change to additional engineering and verification work. It does not calculate functional-safety performance or approve a safety argument.
IEC 62304 systems architecture change impact
For medical-device software working within IEC 62304, the relevant commercial question is how a change propagates through the documented software system and its evidence. The assessment makes that propagation challengeable and states where incomplete evidence limits confidence. It does not determine clinical or safety outcomes.
MIL-STD-882 systems architecture coupling
For a program using MIL-STD-882, cross-boundary coupling can change the engineering work needed to maintain an existing analysis and its supporting evidence. ZOYA measures the resulting cost and schedule exposure only. It does not assess a hazard's severity, likelihood, or acceptability.
AS9100 systems architecture evidence
For an organization operating an AS9100 quality-management system, systems architecture evidence may be distributed across configuration, design, change, and verification records. The assessment tests whether those records support the decision being made. It does not conduct an audit or issue a conformity judgment.
What the decision record should contain
A senior reviewer should be able to trace every material conclusion back to evidence and see what would change the answer. The assessment record should contain:
- the decision, deadline, and system boundary;
- the systems architecture relationships relevant to that decision;
- the evidence supporting each relationship;
- the cost and schedule exposure and its stated assumptions;
- confidence, conflicting evidence, and important unknowns;
- bounded investment options and the exposure retained by each.
The published methodology explains how evidence and assumptions remain visible. The constructed sample assessment shows the intended form without describing a client engagement.
The certification boundary is explicit
ZOYA Solutions is not accredited by, approved under, or acting on behalf of any standard or certification body. Regime context changes the evidence reviewed and the assumptions tested. It does not turn the assessment into certification evidence.
A low systems architecture exposure finding is not evidence that a system is safe, compliant, reliable, or ready for certification. Those are different judgments with different responsible authorities.
Bring the decision, not a document dump
Share the milestone, planning review, or handover that the evidence must support. ZOYA will give a direct answer on whether the assessment fits.
Request a scoping call