Overview
ISO/TR 5716:2025 - "Multivariate analysis using anthropometric data and a virtual fit tool" - provides best practices for incorporating anthropometry (body size and shape) into design using multivariate techniques and virtual fit tests (VFTs). The Technical Report explains why traditional univariate percentile methods can overestimate accommodation and outlines a workflow for assessing spatial fit when multiple body measures interact simultaneously. The focus is on fit, spatial accommodation, and practical VFT implementation rather than preference-based design.
Key topics
- Univariate vs. multivariate analysis: Explains limitations of one-measure (percentile) approaches and how correlated or uncorrelated measures affect overall accommodation.
- Virtual fit tests (VFTs): Definition and role of VFT as a scalable stand-in for physical prototype tests; evaluates thousands of virtual users against candidate designs.
- Multivariate design workflow: Stepwise VFT procedure (identify target population, obtain anthropometric database, set target accommodation, choose candidate design, identify interaction modes, run VFT, iterate).
- Data requirements and precision: Need for a detailed anthropometric database representing the target population (typical guidance: large samples - e.g., 2 000+ individuals per gender for tail precision). Note that summary percentiles (e.g., from ISO/TR 7250-2) are not sufficient alone but can support data synthesis.
- Terminology: Definitions for accommodation, disaccommodation, design variables, VFT, etc.
- Practical considerations: Data availability, cost of disaccommodation, postural variability, and inclusion of non‑anthropometric preferences if needed.
Applications and who should use it
ISO/TR 5716:2025 is targeted at professionals who need accurate human-centered accommodation estimates, including:
- Ergonomists and human factors engineers
- Product designers (seating, helmets, orthoses, wearables)
- Vehicle and transportation designers (cockpit and cabin layout, public transport interiors)
- Industrial designers and manufacturing engineers assessing operator fit, reach, strength and range-of-motion
- Standards developers and regulatory bodies specifying target accommodation levels
Practical uses:
- Conducting VFT-driven design iterations to meet target accommodation (e.g., 90 %).
- Replacing overly conservative univariate rules with data-driven multivariate estimates to optimize cost and manufacturability.
- Assessing accommodation of multiple simultaneous users in environments (aircraft, trains, buses).
Related standards
- ISO/TR 7250-2 (percentile tables) - useful but not sufficient alone for VFT.
- ISO 7250-1 - reference for anthropometric measurement definitions.
Keywords: ISO/TR 5716:2025, multivariate analysis, anthropometric data, virtual fit test, VFT, accommodation, ergonomics, human-centered design.