SAMMIE CAD is a legacy digital human modelling tool used by ergonomists and human factors engineers to assess posture, reach, visibility, and accommodation within CAD environments. While powerful, the workflow is highly manual and time-intensive. To run a single assessment, users must first build or import the full CAD environment, then manually create multiple human models (e.g. W1–M99 percentiles, as well as ACADRE multivariate models). Each human’s joints must then be individually positioned to simulate specific postures. Assessments rely on static snapshots to highlight poor reach or visibility, but the software does not support modelling continuous human movement through real-world tasks. As a result, evaluations are slow, rigid, and limited in their ability to reflect dynamic human interaction.