Analysis interface compatibility worksheet ========================================== StatMedAnalysis | Downloadable worksheet | 5 November 2026 Classify changes to a public analysis interface and verify the consequences for downstream users. Working instructions Define the supported interface before assessing the change. Include parameter names, units, output schema and documented defaults. Run a representative downstream call on both versions. If the project uses Semantic Versioning, apply its version rules to the declared public interface. Working record Save a local copy. Use public, hypothetical or aggregate information. Project code ____________________ Prepared on ____________________ Public interface or function ___________________________________________________________________ Supported input and previous output contract ___________________________________________________________________ Proposed change and motivation ___________________________________________________________________ Affected caller or pipeline step ___________________________________________________________________ Old and new fixture outcomes ___________________________________________________________________ Backward compatibility decision ___________________________________________________________________ Version policy and migration example ___________________________________________________________________ Deprecation period or release note ___________________________________________________________________ Hypothetical worked case A fictional package changes an existing output column from proportion 0–1 to percent 0–100. The column name stays the same, but a downstream threshold now has a different meaning. Treat the documented unit change as a breaking interface change. Decision and follow-up Require an explicit migration when existing supported calls change meaning. For projects following SemVer, check the rule appropriate to the major version, including the special initial-development status of 0.x. Record the project’s own policy otherwise. Decision _______________________ Date ___________________________ Evidence retained at _____________________________________________ Next action ____________________ Owner __________________________ Official reference checked 5 November 2026 https://semver.org/